@2

What the fuck are you kids doing?"

Adrienne and Mike turned sharply, fear suddenly gripping them.

Cindy looked up and said, "Get your ass in here and close the door."

"You guys having a party without me?" Gayle asked.

"You fell asleep," Cindy told her.

"So, Adrienne has joined the club," Gayle noted.

"What club?" Adrienne asked.

"The We-Have-to-Entertain-Ourselves-on-This-Trip Club," Gayle said.

"You've got that right," Adrienne agreed.

"I'm glad you enjoy the same kind of entertainment that we do," Gayle said.

"We've determined horniness runs in the family," Adrienne advised.

"I won't argue that."

"So, is this the extent of 'the club?'" Adrienne asked.

"So, far. But it seems to be growing quickly.

"So that means, Mike, you've fucked Gayle, too?"

"Well, one thing led to another, and I think you could say we are the founding members," Gayle answered for him. "But I guess I'm too late for tonight's club meeting."

"I'm worn out," Mike said. "Maybe one of the girls will do you."

"I already did before coming in here," Cindy told them.

"We should really try to get some sleep," Adrienne suggested. "You know our parents will be up at first light to inspect the outside of the boat and the island, and they'll probably be waking us up to help."

"She's right," Gayle agreed. She and Cindy returned to the other cabin.

"Well, that was fun," Adrienne commented. "Why didn't you tell me about all this last night?"

But Mike was already asleep.

* * *

And Adrienne was right. First light and their parents were knocking on doors. They all gathered in the salon as the moms prepared breakfast.

"Commandant" George issued orders as they ate around the table. "Henry, Keith and I will inspect the boat more thoroughly in daylight, particularly the hull, rigging, and decks. It appears that we were fortunate to run aground in an inlet or lagoon, whatever this is, so we're protected from the open sea. We want you kids to start searching the island. We think each pair of siblings should head in a different direction, such as Cindy and Don go right of the boat, Mike and Adrienne go inland, and Gayle and Eric to the left of the boat. Any questions or suggestions?"

"How far do we go?" Mike asked.

"Or how long?" Gayle added.

"Try to be back by dark," Henry said.

"But use judgment," Keith said. "However far you walk, it'll take as long to get back, so keep that in mind. And wear shoes, not flip-flops. You never know what you're going to have to walk through or on. A hat is probably a good idea, also."

"Swimsuits okay?" Gayle asked.

"It'll probably get hot, so yeah. The idea is to try to determine where we are and what is around us," George clarified. He grinned. "It would be nice if there is a luxury resort around the next turn of the shore, or an hour's walk inland. If none of you find it there, then you need to decide how much further to go."

"You also want to look for signs of occupation or none," Henry said. "Footprints or disturbances in the sand on the beaches, a trail or path inland."

"Take flashlights. Your mom's have made sandwiches for lunch, and there are containers with water. Mike, there's a machete you and Adrienne can take. Any questions? If not, see you tonight."

* * *

"Well, isn't this fun?" Eric remarked as they walked away from the catamaran.

"Beats just sitting around on the boat all day," Gayle countered.

"As much as I was looking forward to this trip, I didn't think about the downside," Eric admitted.

"What downside?" Gayle asked, as if she didn't know.

"Having to sleep with Don, for one. Not having any alone time, for two."

"Is Don a problem?"

"Not really. I mean, he doesn't snore or fart. I'm just used to sleeping alone." He stopped walking and turned to face her. "Sis, can I be honest with you?"

"Of course, Eric. What is it?"

"I'm horny. I can't jerk off."

"We're all having that problem," she revealed. "None of us thought about this ahead of time."

"What are you doing about it?"

Did she dare tell him what she'd been doing, or was that too much too soon?

At that point, the coastline turned away from the boat. There was nothing but more beach.

"Well, do we keep going?" Gayle asked to avoid answering her brother's question.

"I don't know. What do you think?"

"Yeah. Let's keep walking so we can talk more. We also have an opportunity."

"What opportunity?"

"We're off the boat. We're alone. You can jerk off if you want."

"In front of you?"

Gayle smirked. "Seriously? When did you become a prude? I could turn away. But I'd like to watch you jerk off."

Eric looked at his sister with a frown. "You would? Why?"

She shrugged. "I like to watch guys jerk off."

"Seriously?"

Gayle shrugged again. "It arouses me."

"But I'm your brother."

"So? You've got a dick. And I bet you know how to jerk it."

"I can't . . . I don't have—"

"Any porn to watch? I thought you said you were horny?"

"Yeah, but not enough to just, you know, whip it out."

"How's this?" Gayle looked up and down the beach for good measure, and finding them completely alone, she reached behind her and untied her bikini top strap, then pulled it off to reveal her bare breasts.

Eric's eyes went wide. "Holy shit, Gayle! I never knew you had such nice tits."

"Don't tell me you've never tried to sneak a peek."

He took his eyes off her boobs for a second to look at her face. "Well, yeah, but it wasn't as good a view as this."

She could see he had an erection. "Let me see your dick."

"What?"

"Come on, I've shown you my tits."

After a heavy sigh, Eric slowly pushed his swimsuit down and let it drop to the sand. "Are we really doing this?"

He had a nice cock. Not as nice as Mike's, but good enough. "We're entertaining ourselves, Eric. We're taking care of needs that we did not contemplate would be a problem. And we're having to invent new ways to do it. Ways that we might not have otherwise used."

"But should we?"

"Necessity is the mother of invention. You show me yours; I'll show you mine. Desperate times, desperate measures. How desperate are you?"

"But—"

"You watch porn? You've never watched brother and sister videos?"

"Well, yeah." He shrugged, grabbed his cock, and started stroking.

Gayle then removed her bottom rendering her completely nude.

Once again, he was awestruck.

"You can touch them if you want."

Again, Eric's eyes went wide. He couldn't believe they were doing this. But he was desperate. He extended his free hand, but halted before making contact, looking up at her face as though for confirmation. Her nod was his approval to continue. He placed the palm of his hand flat against her breast, her nipple poking the center creases. He sucked in his breath, then began what amounted to feeling her up. It was awkward for both of them, but a new, enjoyable sensation. Taking her nipple between thumb and forefinger, he gently twisted it, fearful of hurting her.

"Rub the tip," Gayle whispered.

So, he did, and that felt nice. She noticed he was concentrating more on feeling her up than stroking his cock, so she reached out and replaced his hand with hers. She felt his dick pulse when she held it in her hand, and again, he sucked in his breath.

"Is this your first time doing stuff like this with a girl, or is it just because I'm your sister?"

"Both."

"Are you nervous?"

"A little. I mean, isn't this supposed to be wrong?"

"Depends on who you ask. Doesn't bother me. Particularly because of the situation we're in."

"Desperate times call for desperate measures, huh?"

"At the very least." His hand on her breast, hers grasping his cock, and the situation they found themselves in was arousing her and she wanted to move this along. Pulling on his cock to bring him closer, she rubbed the tip against her clit.

"Mmmm," he moaned as pre-cum oozed out and was smeared against Gayle.

"Yum."

She kept it up, stroking his dick as she rubbed it against herself. It was erotic doing this with her brother. She'd never really considered engaging him before, particularly since he'd only recently turned eighteen. He continued oozing pre-cum which served as lubricant and further stimulation.

"This feels good, Eric."

"Yes, it does."

She rubbed his cock harder against her clit, and that started the tingling. It built quickly, and to enhance the experience, she pushed his dick between her legs, but did not insert it. He got the idea and pumped a little, and that was the final bit of inducement she needed to come. The orgasm became even more enjoyable when Eric suddenly blew his load between her legs. His continued thrusts smeared his cum all over her pussy, and it felt marvelous. It seemed as though he came buckets.

Finally, he finished. "Fuck! That was incredible!"

"Yeah, it was good. Always better to come with someone."

"Sorry. I couldn't control it. I shot all over you."

"No worries. We're on a beach. We can simply go in the water and clean up." She did and he followed. After wading a few minutes, Gayle said, "Well, we better get dressed and move on."

* * *

The same distance away in the opposite direction, out of the clear blue, Cindy remarked, "I'm horny."

Don was taken aback. "Okay, well, how do you do? I'm Don."

"I'm serious," Cindy reiterated.

"Well, that's a revelation. Why tell me? What can I do about it?"

"You want to fuck me?"

That had Don stopping and turning to her. "What have you been smoking?"

Cindy shook her head. "Nothing. I'm horny and I need some dick."

"And you want it from me?" he asked facetiously.

"What have you been doing for yourself?"

"What do you mean?"

"Ever since we've been on this trip, we've had to share rooms and beds. You've had to sleep in the salon with Eric. You're not horny?"

He thought about it for a second. "Well, yeah."

"Have you been able to, you know, satisfy yourself?"

"No. How would I do that?"

Cindy smirked. "Carefully. Don't you want to?"

"Well, sure. Why would you want to do that with me? I'm your brother, remember?"

"Because we have an opportunity. Look around," she said with a sweep of her hand. "There's no one here. We're alone. We have privacy."

"You've never suggested this before. Why now?"

"You just turned eighteen a few months ago, for one. And we've never been in a situation like this. You've never fantasized about having sex with me?"

"Not really. You're not really my type."

"Why? Because I'm big?"

His semi-shrug and partial grimace gave her his answer. Affirmative without saying it.

"How do you know I'm not good, despite my size?" She reached out and rubbed his cock through his swimsuit.

He jerked back. "What are you doing?"

"Well, you're hard. That's a good sign." She continued to rub him, and he did not stop her. "You like me touching you?"

"I guess it's okay."

"Would you like this even better?" Now, she slipped her hand inside the waistband of his swim trunks until she connected with his bare, hard dick. Again, he did not stop her as she wrapped her fingers around it, lightly stroking.

"Mmmm," was his pleasurable response.

"Good. You like it." She took his silence as approval. With her free hand, she eased out of her bikini top.

His eyes widened at the sight of her tits. They were actually nicer than he expected.

Pressing them against his arm, she leaned in and whispered, "This feels good, doesn't it?"

"Yeah," he answered, stifling a moan.

"Now, imagine your dick pressed into the softest space it could ever feel. My pussy." His cock pulsed. "Imagine just rubbing it against that softness until you had the most exciting orgasm you've ever had." His dick pulsed again. "I know you've seen porn videos of this. Of guys fucking their sisters. Now, imagine being able to actually do it."

Don was breathing heavily now. Cindy removed her hand fearing he might come too quickly. She didn't let go of his waistband, but rather she used both hands to push his trunks down as far as she could. She then lifted her leg and used her foot to push it down until it fell on its own. He offered no resistance, but he had a confused expression on his face. She thought maybe he needed a bit more encouragement, so she dropped to her knees. Fortunately, the sand made it easy.

She grabbed his dick, which was a respectable size, though not as big or nice as Mike's. But it fit her mouth nicely as she slid her lips over it.

Don let out a high-pitched whine, and his legs buckled slightly, though he maintained his stance.

Cindy sucked him just enough to wet his cock, but again, she didn't want him to come. Standing up again, she whispered, "Are you ready?"

He merely nodded as though not knowing what to expect.

Cindy instantly shed her bottom and laid down, careful not to get sand between her legs and on her pussy. She pulled on Don's hand, and he got down into the missionary position. Reaching for his cock, she guided it into her pussy.

Both sighed heavily.

Cindy placed her hands on his ass and pulled to get him started pumping. After a few thrusts, he got the idea and was fucking her on his own. For her it felt wonderful, desperately needed relief.

"What do you think?" she asked him.

"It feels amazing."

It was basic sex. She wasn't going to try anything fancy, different, or kinky. She just wanted an orgasm. She could tell her brother was already highly stimulated, so it wouldn't be long before he came. She moved his butt quicker, and that helped her start to feel her climax.

"Oh, yeah, Donnie. Keep it up. I'm gonna come." Looking up at her brother's face, his eyes were closed in concentration. Looking around, having sex on a beach in warm sunlight added to the experience. Her orgasm built quickly, as her's usually did, and she held him tighter. Seconds later, she exploded. She felt him slow down. "No. Keep it up."

"I'm going to come, too."

"Come on."

"Inside you?"

"Yes! I'm protected."

Seconds later, he flooded her vagina, and it felt marvelous. And best of all, she was able to scream out her pleasure.

Don groaned also. After another minute or so, he exhaled deeply and rolled over, breathing heavily.

"Are you okay?" she asked.

"That was fucking fantastic!"

"Glad you liked it."

"I never knew sex could be so . . . so . . . amazing. Can't wait to do it again."

"Me, too. But for now, we better get moving. Maybe later, we can take another . . . break."

* * *

The going was much slower for Mike and Adrienne.

"Doesn't seem like anyone has been through here before," Adrienne noted.

"I would agree," Mike said, swinging the machete to blaze a trail. The undergrowth was thick, but not impossible to get through. Still, it wasn't as easy as a walk on the beach.

"Why did we get stuck with this?" Adrienne wanted to know.

"I'm sure it was dad's idea."

"How much farther do we need to go to say there's nothing or no one here?"

"We haven't been gone that long. A little farther."

"Are you enjoying this?"

"It's an adventure!" Mike said with a snicker.

"At least if we were on the beach we could stretch out in the sand and fool around."

"I'm really amazed that you are suddenly so preoccupied with sex."

"I'm not preoccupied with it," Adrienne countered. "But it's better than most of what we've been able to do."

They managed to walk for a while without Adrienne complaining.

But then, she finally had to say, "I think this is far enough. It's obvious there's nothing to see."

"Shhh!" Mike said.

"Don't shush me!"

"Listen."

"What do you hear?"

"A waterfall." Mike continued walking.

Several minutes later and farther on, Adrienne said, "I hear it. Let's find it." She went ahead of Mike, making her way as best she could.

Roughly a half-hour later, they broke through the heavy growth to come upon a lake maybe as wide and long as the width of a football field. At one end was a waterfall maybe two or three stories tall. It fell from a hill or rock formation that seemed to rise on that side of the island.

"It's beautiful!" Adrienne said. "An oasis in the jungle. Let's go for a swim and cool off." She walked to the edge of the water and dipped her toe in. "It's perfect. And clear!" She started removing her swimsuit.

"What are you doing?" Mike asked.

"I've always wanted to go skinny-dipping."

This was almost surreal seeing his sister standing there naked in this tropical surrounding. She was trim, lithe. Her breasts were not large but mounds that seemed to puff out from her chest with no sag. Her small areolas hosted equally small nipples that stood out pointed and firm. Her smooth abdomen sloped down to her shaved pussy and the hood of her pronounced clit. Mike couldn't help but grow a hard on.

"Come on," she urged. "We've never been able to do this."

Shrugging, he pushed his swim trunks down, his cock bouncing up when it cleared the elastic waistband.

"Mmmm, just what I was hoping to see," Adrienne said with a lustful grin.

She then eased into the water. It appeared to be only a couple of feet deep, but then gradually became deeper. She swam out twenty feet or so, then turned around in time to see her brother step in. He went only far enough until his body up to his neck was submerged. He wasn't surprised when Adrienne swam to him and wrapped her arms and legs around him. It did feel nice having her naked body against him, but he still couldn't get over the fact that he was doing things like this with his sister.

She instantly rubbed her pussy against his dick. He didn't rub back. "You're still apprehensive about this," Adrienne stated. It wasn't a question.

He shrugged. "You see this in porn videos, but you wonder how real they are, and then you never expect it to happen to you. I mean, I never expected it to happen to me. I never thought, or I should say, I never got any—" he bobbed hide head from side to side "—sense? indication? notion?—I don't know what to call it—that you were . . . you know . . ."

"Well, you know, where we live, girls who are blatantly sexual are labeled sluts, or whores, or something derogatory—like why can't girls like sex without being called such things—so, I've always kept it to myself. However, as we all know, this trip has . . . created needs . . . that demanded . . . alternative means—"

"Yeah, I get it. I came into your cabin at just the right time."

"Do you think bad of me? Am I a bad girl?"

"No," Mike answered with a chuckle. "I've always felt that there were girls out there with the same sexual desires that guys have, but who didn't publicize it like guys do. I'm glad that you weren't afraid to, you know, let me know. Of course, what's really amazing is that there are three of you in one family."

"I told you, it's hereditary. Do you like having sex with me?"

"Of course."

With a smile, she said, "I'm glad." Then she reached down, grabbed his dick, and maneuvered it into her pussy. "That feels so good."

"Yes, it does."

It was a new experience doing it in water. Except that she was trying to ride him, but she had no traction, nothing to push against. Mike grabbed her hips, moving her up and down. She seemed to float on his cock. It felt amazing.

Adrienne's arms and legs around him gave her something to push against to enhance their thrusting. Just having him inside her was almost as satisfying as having an orgasm. But just having him inside her was conducive to a climax. One thing led to another. And then there was that glorious feeling building inside her. Masturbation had always been the quick fix. But orgasm from sex was the ultimate.

"Mmmm, Mike, I'm going to come, and it feels delightful. Make me come, Mike."

He tried his best to pump harder. But fortunately, what he was doing seemed to be enough. He felt her body tightening. She shivered. She moved her hands up around his head, pulling his face to here's, rubbing their cheeks together. And then surprisingly, she turned his face to hers and kissed him deeply. And she came.

Mike wouldn't have expected it, but the kiss was the impetus he needed to bring him to the edge. He pulled out quickly and pressed his cock against her abdomen as he felt his dick ejaculate, sending warm feelings throughout his body. Mmmm, there was nothing like an orgasm. Especially with his sister.

* * *

"I think it's safe to say this is an island," Eric said after they had been walking for nearly three hours.

"I would agree," Gayle concurred.

"I also think we've probably gone halfway around. Let's take a lunch break to decide what to do next."

"Okay."

They picked a nice shady spot to sit.

"You haven't said much during our walk," Gayle pointed out as they ate. "Are you okay?"

Looking somewhat distant, Eric said, "I, uh . . . I, uh, kinda can't get over what we did before."

"Can't get over it in what way?"

"I can't stop thinking about it."

"Does it bother you? Are you upset?"

He grinned. "No, not at all. Just the opposite. It was quite exciting."

"Yeah, it was fun."

"I've never done anything like that with a girl. But I'm guessing you've done things like that with a guy before."

"I have. And more," she added honestly.

"So, you like sex?"

"I do."

"I don't know any girls who do," Eric lamented.

"You probably do, just not well enough for them to admit it to you. Girls tend to be a little guarded about things like that."

"Were you?"

"I still am." Gayle chuckled. "I don't meet a guy and say, 'hi, I'm Gayle. I like sex.' It's not something you talk about until you know each other well. And some girls take longer."

"My luck, those are the ones I know."

They both laughed.

Then Gayle became serious. "You know, Eric, now that we know we're on an island, probably an uncharted island, we might be here for a while. When the opportunity arises, we can help each other."

"You mean by doing what we did?"

"And maybe more."

"I'd like that."

"Of course, you know, people frown on brothers and sisters doing what we did, so we can't tell anyone."

"Goes without saying."

"Are you sure you're okay with that?"

"Sis, you are gorgeous. I'm lucky that you are willing to do stuff with me. I could have been stuck with Cindy."

"You mean because of her size?"

"Well, yeah."

"What makes you think she wouldn't be good just because of her size? Maybe she's better than me."

"Well, I—"

"Here's something to think about. Young guys like you see a nice-looking girl who looks like . . . me. And you think you want to . . . be with her. But just because a girl looks like . . . me . . . doesn't automatically mean she's going to bed good in bed. Someone like Cindy could be the best fuck you'll ever have."

"You think she might be good?"

"I know she is."

"How do you know?"

"Let's just say I know a guy who's been with her." Gayle took a deep breath. "All this talk has made me hungry."

"You just ate," Eric said.

"Not that kind of hungry. Pull your trunks down."

"What are you going to do?"

"If you have to ask, you don't want it."

With a smirk, Eric complied. Gayle pushed him to lay down, then she bent over, held his dick up, and swooped down to suck him.

He let out a little girl whimper.

Gayle only got a couple of bobs in before they heard, "Hey!"

Looking down the beach opposite the way they had come were Cindy and Don approaching from way in the distance. Eric scrambled to pull his suit up.

"What happened, Eric?" Cindy asked when they reached their cousins. "You get sand in your trunks?" She and Gayle exchanged smirks.

"Uh, no, no," Eric stammered.

"What are you guys doing?" Cindy asked.

"Just having an adult conversation," Gayle responded, poking her tongue against the inside of her cheek to simulate a blowjob.

Cindy nodded her understanding. "Yeah, we had an adult conversation earlier, ourselves."

"How was it?"

"Satisfying."

"So, it appears we are on an island," Eric said, when the girls finished their curious exchange.

"I agree," Don said. "The beach just wrapped around."

"And judging by the fact that we both arrived at this spot within minutes of each other, and assuming we all walked at about the same pace, this might be the opposite side of the island from the boat."

"I agree with that also," Don said. "So, I guess we just head back the way we came?"

* * *

After their "adult time," Mike and Adrienne frolicked in the water. They swam to the waterfall and found a rock to stand on to let the water shower them, which was refreshing since they hadn't showered since leaving San Diego. Perhaps they could come back with soap to take a proper shower. Neither sibling had ever showered with another person, so not only was it cleansing, but it was also playful. Just being naked with another person like this, regardless that they were siblings, was erotic, and both felt the sexual tension. It was an awakening of sorts that they never would have experienced anywhere else.

Diving back in, they swam to the middle of the lake. There was actually a high spot where the lake bottom was shallow. Standing on it, they were only waist deep.

"What the fuck are you kids doing?"

The sound of the waterfall masked the origin of the voice, but it didn't take long to see Gayle, Cindy, Eric, and Don standing on the opposite side of the lake. Mike and Adrienne swam toward them.

The other four had decided to cut through the interior rather than walking the long way around, both to save time and, hopefully, to connect with their other cousins.

"Adrienne is fucking gorgeous," Eric said under his breath.

"Got that right," Don agreed.

"We heard that," Gayle said. "What are we? Chopped liver?"

"No, no, you two are, you know, attractive, too," Eric stammered.

"Good save."

"She's just—"

"You're digging a deeper hole."

By then, Mike and Adrienne had reached them.

"What are you two doing?" Gayle asked.

"Skinny-dipping," Adrienne said. "The water is perfect. Strip down and come in."

Gayle and Cindy did not hesitate to shed their swimsuits. The boys watched in awe but were a little more apprehensive. Finally, they decided to join in. They all waded in the shallow end.

A few seconds later, Don started laughing.

"What's funny?" Cindy asked.

"All the things we've done together as cousins, and here we are on an island all naked in a lake or pond."

"What's so strange about that?" Mike asked facetiously with a smirk.

"Are Don and Eric new club members?" Adrienne asked.

"What club?" Don wanted to know.

"The We-Have-to-Entertain-Ourselves-on-this-Trip Club," Adrienne said.

"How do we do that?" Eric asked.

The others all looked at Gayle to explain.

"Eric, remember when we stopped for our break, and I said we were taking care of our needs?"

"Yeah."

"Well, that's the club. But we're not just taking care of yours and my needs, we're all taking care of each other's needs."

"That goes for us, too, Don," Cindy said.

"Who started this club?" Don asked.

"Uh, well, Mike and I."

"So, there was more to it than the two of you being odd people out," Don surmised. "So, Mike fucked you?"

Gayle nodded hesitantly.

"And me," Cindy added.

"And me," Adrienne said.

"You lucky bastard. How do we get a turn?" Don asked, looking at Adrienne.

"Why are you looking at me?" she asked.

"The boys think you're hot," Cindy told her.

Adrienne dipped her head in embarrassment. "Well, it's probably going to take a couple of hours to get back, so we should get going so we can get back before dark."

"Maybe they're good," Mike whispered to his sister of their male cousins as they swam to shore.

* * *

The adults were all sitting in the forward cockpit and were, of course, surprised to see all six cousins emerge from the interior together. Each set of siblings described what they saw, which for Gayle/Eric and Cindy/Don was nothing but untouched beach. Mike and Adrienne could only report the lake and waterfall, leading everyone to conclude that they were on an uncharted, vacant island. There were some paper maps in the nav station drawer, but they could find no islands that fit what they knew about this one.

The dads reported that there was no serious damage to the catamaran. They believed they could fix the electrical issues, and they had some ideas about how to push the boat completely back into the water since it was only a few feet of each hull that was beached.

The monkey wrench was thrown at dinner when Eric asked, "When do we revise the sleeping arrangements?"

Mike instantly realized he was angling to possibly sleep with one of the female cousins now that he knew about the "club." Glancing at his sister, Mike saw that she was worried about maybe having to share a bed with Eric or Don. Thinking quickly, Mike said, "You and Don can take the rear cabin. My sister and I will sleep in the salon. That work for you Adrienne?"

Looking relieved, she said, "Yeah. That's fair."

"Thanks," Eric said, obviously not satisfied.

* * *

"Thanks for saving me," Adrienne whispered to her brother with her lips against his ear later when they were alone in the converted settee bed, which was not as comfortable as the mattresses in the cabins.

"I noticed your sour expression, and it occurred to me Eric was up to something," Mike explained. "But I wasn't entirely joking when we left the lake and I said he or Don might actually be good."

"Maybe so. But I've only had sex—what?—three times now, and always with you, and I like doing it with you, so I don't feel the need to have it with someone else. Maybe at some point, I'll be desperate and one of them will be the only one around and I'll give in. Besides, let them start with their own sisters."

"I got the sense that might have already happened."

"So, did I, which was predictable. But unfortunately for us, we can't do anything right now, can we?"

"We could, but it would be very risky."

"Ungh!"

"But we can do this. Just be quiet." Mike slithered under the covers, spread Adrienne's legs, and crawled between them. He applied his mouth to her pussy, and let his tongue go to work.

Adrienne moaned softly.

She was juicy, and Mike was enjoying eating her sweet pussy. If her squirming and grabbing of his head were any clue, she was enjoying it also.

"What the fuck are you kids doing?"

"What the fuck are you kids doing?" Gayle asked in a loud whisper.

Mike darted out from under the covers, almost expecting it to be her. He turned his head. "Dessert," he quipped.

"I was wondering what you two were going to do," Gayle mused.

"Not much else we can do," Mike said.

"You two want to come to our cabin and play?"

"This is risky enough," Mike said. "Wouldn't want to take the chance that one of the parents would come up here during the night—like your mother."

"You could come one at a time," Gayle offered. "I really need some dick."

"Can't help you there. Go get your brother," Adrienne suggested.

"Maybe I will."

* * *

"They didn't want to take the risk," Gayle reported to Cindy, returning to their cabin. "Adrienne suggested our brothers."

"There's an idea," Cindy said. "Don wasn't bad, just inexperienced." The cousins had told each other of their experiences with their brothers on the beach.

"Maybe if we have to teach them, we can mold them into the kind of lovers we want," Gayle proposed. She'd told Cindy that she'd warned Eric about jumping to conclusions about size. Cindy appreciated that.

"You want your brother or mine?" Cindy asked.

"Let's stick with our own to start."

Cindy quickly eased off the bed and walked down the short hall to the rear cabin. She didn't bother to knock. The male cousins were sitting up in bed talking, no doubt bragging about their experiences on the beach. "Go to your sister's cabin," Cindy told Eric, with a jerk off her thumb.

"What for?" Eric asked.

"If you have to ask, you don't want to do it," Cindy said, repeating what Gayle had told her she said.

With a smirk, Eric hurriedly eased off the bed and down the hall.

"Were the two of you trading stories about your experiences on the beach today?" Cindy asked.

"Yeah. But only because you told us about 'the club.'"

"That's okay. Gayle and I talked about it, too."

"So, are you here because you're horny again?" Don surmised.

"I am. Are you up for it?" she asked with a giggle for her pun.

"I think you'll find I've risen to the occasion," he said, returning the wordplay.

They both chuckled.

"So, how do we start?"

"I'm going to teach you how to be with a woman," Cindy explained. "What we did on the beach today was more of a quickie. Now, we're going to take our time and do it right. Okay?"

"Sure," Don answered eagerly, knowing a fuck was likely the end product.

"Good. Before we begin, if you're with a girl and even if the mood seems right, if she says no, no means no. You got that?"

"Yes," he said as though that had already been preached to him.

"Even if you're getting a different vibe from her, like maybe you think she really wants to do it. But if she'd says no, you go no further."

"I got it. I got it."

"I just want to make sure you understand. You respect her that time and she'll come around the next time."

Don nodded impatiently.

"When the mood is right, and you're absolutely certain she wants you, she might even initiate it. Either way, be gentle. Be considerate. If she wants to play rough, let her tell you or let you know some other way. Learn what she likes. We all like something different, or different ways. It usually starts with kissing." Cindy leaned in and kissed her brother softly. "You either begin this way or respond to her this way. She might escalate it, or you can try." Cindy became more aggressive in her kiss. She gave his lips a lick.

Don took that as an invitation to use his tongue. Cindy responded, and they graduated to a French kiss. After a minute, she pulled away. Don was breathing heavily, obviously aroused.

"The lesson would be different if we were both fully dressed, but since we're not, and I'm horny, we're going to start naked, so strip." He did so as she removed her pajamas. "So, if the two of you are already undressed, you've made it to second base. Now, you have to figure out what to do next. A good place to start might be to caress her breasts. And we're not talking about feeling her up." Cindy took his hand and placed it on her boob. She moved it around to demonstrate what she meant and kept it up until he got the idea and did it on his own. "A positive response from her would be moaning, purring, and maybe heavier breathing. Then you might want to use your other hand on her other breast."

He did so.

"Mmmm, yeah. That's nice. You're getting the hang of it." Cindy reached for his cock and stroked it slowly. "If you're doing as good a job as you're doing now, she might grab your dick and tug on it."

"I'd like that."

"Of course, you would. Now, we can go on with foreplay as long as we want. Some people enjoy foreplay more than the actual sex. There could be a blowjob, eating pussy, or we could just skip to the main event, which in the interest of time, I think we'll do, also because I'm horny and don't want to wait any longer." She'd laid on her back. "Now, stick that bad boy in me."

Don mounted his sister, and she guided his cock in.

"Mmmm," they moaned in unison.

"Oh, Cindy, this does feel good. I guess this morning on the beach I was just too nervous. But now that we sort of have time to enjoy it, it's really nice. I'm sorry about the size thing also today."

"I'm kinda used to it. But never judge a book by its cover. Big girls need loving, too. Now, you know what to do."

Don pumped at a moderate pace.

With this trip, the cousins were all in a constant state of horniness, even with the little relief they had each received, and with what Cindy and Don had done so far this evening, it didn't take much for them to reach orgasm. Don managed to hold out long enough for his sister to tremble, tense and come.

She decided to treat him to something different. She made him pull out so she could suck him to his climax, allowing him to come in her mouth. She had to shush him when he nearly screamed out as he filled her mouth with cum. It was so amazing that when he finished ejaculating and watching her swallow, he was so lightheaded he could only fall onto his back.

Giggling, Cindy got on top of him and kissed him. She still had some of his cum in her mouth. He'd instantly tasted something that wasn't saliva and pushed her face away.

"What was that in your mouth?" he asked, suspiciously.

With a grin, she responded, "I might have had some of your jism still in my mouth."

"Ugnh!"

"Shhh! That's always a possibility when she lets you come in her mouth."

"Now, you tell me."

"Just wanted you to have the full experience."

* * *

Eric found his sister laying on her side, head propped up and resting in her palm. And she was naked.

"What if it wasn't me?"

"Thought I'd rescue you from Don."

He smirked. "That the only reason?"

"I could use some dick, not tongue."

"Cindy used her tongue on you?" he asked with incredulity.

"She has."

"Damn! I'd love to see that!"

"I'll bet you would. You going to stand there and just look at me?"

Presumptuously, Eric slipped out of his shorts and climbed into the bed. "So, this is real, this club?"

"It's not really a club," Gayle corrected. "We just jokingly called it that. Mike and I both realized that we needed to do something. Then Cindy joined in with the same realization. Then Adrienne. Then Cindy and I independently had the same idea with you and Don today while on our exploration. And then of course, we came full circle when we found Mike and Adrienne skinny-dipping." She casually reached over and gently stroked his dick.

"Mmmm."

"We really just fooled around on the beach today to help each other come. Are you ready to go further? With your sister? It's not considered proper. But a lot of siblings do it anyway."

"I don't have a problem with it," Eric said. "I'm actually kinda glad my first time will be with you."

"Really? Why?"

Turning on his side, he reached over and fondled Gayle's breast as she adjusted her hand on his rod. "I wouldn't want my first time to be with a girl I was trying to impress. Mom and dad always raised us to be close, and I think we have been, so I hope you won't laugh at me if I seem awkward."

"Aw, Eric, that's sweet. Of course, I wouldn't laugh at you. And it's not like I have so much more experience. I guess that's the positive thing about us doing it together is that neither of us has to impress the other. We can just do it to help each other and have fun. So, get on up here and let's play."

Much to her surprise, Eric was very gentle as he moved on top of her into the missionary position, and as he fumbled with his dick. He missed his first attempt to put it in her, and chuckled. She gave him one more try before assisting. Again, he was gentle sliding in. He let out a high-pitched moan of pleasure as he experienced the inside of a vagina for the first time. Once all the way in, he stopped to enjoy the sensation, and then finally started pumping slowly, as though he might break something. Gayle was touched by his sensitivity.

"I'm glad you're going slowly. A lot of guys want to be a jackhammer."

"I never knew it would be so soft. I've never felt anything so soft. I don't think it would feel so good if I went faster."

"You're right. It wouldn't."

It was a nice, leisurely fuck.

And as such, Gayle had a nice leisurely, satisfying orgasm. Surprisingly, Eric wasn't quite ready, so she rolled them over and rotated around into a sixty-nine. She sucked his cock, which had him groaning pleasurably. Even though her pussy was essentially in his face, she didn't expect him to do anything, but she was pleasantly surprised when she felt his tongue tickling her clit. He didn't seem to be trying to make her come, but rather was just licking because it was there.

Finally, she heard him mumble against her pussy that he was going to come, so she tightened her lips around his shaft until he filled her mouth with cum. It wasn't much so she was able to easily swallow it all.

The door opened and Cindy entered. They both turned sharply.

"Save some to kiss him with," Cindy suggested with a giggle.

"I already swallowed it all," Gayle said. "Did you do that to Don?"

"Yeah. I thought he was going to gag."

They all laughed.

"I better get back," Eric said. When he did, the boys couldn't help but tell of their experiences. Little did they know their sisters were doing the same thing.

* * *

Squirming closer to Mike, Adrienne whispered in his ear. "Mike, someone is walking through the salon."

Ever the light sleeper, Mike turned on his side away from his sister. He opened one eye in an attempt to see. The silhouette revealed a woman coming from the starboard forward or center cabin. Her size, or lack thereof, suggested Aunt Gloria, which was not surprising. She headed to the port side hull and down the steps. He hoped his cousins were all where they should be, and silently thanked Eric for requesting the change of sleeping arrangements. He also wondered if this was the first time she had taken a late-night stroll.

A few minutes later, she returned to her cabin.

Mike turned back to face Adrienne to whisper in her ear. "You still awake?"

"Yes."

"It was probably Aunt Gloria."

"Oh, shit! I wonder how often she's done this."

"I do, too. We'll have to pull the others aside and tell them tomorrow."

* * *

Once again, the parents awoke the kids early; Mike and Adrienne even earlier since they were in the salon. The adults wanted to work on the boat before it got too warm.

After a light breakfast, Don, being the smallest male, was assigned to operate the tender by attaching a line to the stern and pulling. The catamaran's propellers were still safely submerged in the water and operable. Gayle was assigned the helm, to run the engines in reverse to assist in pulling the boat off the beach. Everyone else was to take up position at the bow of each hull to push. The hope was that all three actions together would free the boat from the sand.

It did not work on the first try. Both the tender's outboard motor and the cat's engines were only run at half output. It seemed to budge with a quarter more power. Looking out from the helm, Gayle could see the strain on the faces of her parents, aunts, uncles, and cousins. She turned to the rear and yelled at Don. When she got his attention, she made a gesture to move the throttles all the way. He understood, and she heard the small outboard motor whine. She then shoved the cat's throttles all the way. The engines roared, the boat lurched and jerked and reversed and pulled off the beach sharply until it was floating again. She quickly set the levers to neutral. Watching, Don do the same.

The boat backed up so suddenly, it caught those on the beach by surprise. They were pushing so hard, but the boat moved away faster causing them all to fall forward into the water. It was actually comical. Gayle ran to the front of the starboard hull and dropped anchor.

As the others gradually stood, they all started laughing. Gayle joined in. Don had untied the line to the stern and drove the dinghy to shore.

They hugged each other and shook hands by way of congratulating each other on the beach. Henry looked up to the boat and gave his daughter a thumbs up. Gayle returned the gesture.

"Great job, everybody!" George said. "Now, we need to get to work on the electricals, and check under the hulls for damage."

"I'll check under," Mike offered.

"I can do one hull," Gayle said.

"Great!" George said. "Look for cracks in the hull and chips in the gelcoat."

As Gayle removed her T-shirt and shorts with her bikini underneath, Mike, already in his swimsuit, waded into the water until he was deep enough to swim under the boat. The water was clear enough that he could see his cousin swimming to the other hull. He noticed a few minor scratches, but nothing deep enough that cut through the gelcoat, and no cracks. For good measure, he swam the length of the boat to the rear, discovering no other flaws. He returned to shore to report his findings.

Since she'd only dropped the anchor, Gayle followed the chain down to make certain the hook was properly embedded in the sandy bottom. To be certain, she pushed it with her hands, and then returned to shore.

"Then we're in good shape," George said. "If Keith can sort out the electrical issues, we could be underway this afternoon."

"Uh, dad," Mike spoke up. "I'd like to recommend that we stay here a few more days. We have this entire island to ourselves. We're in a protected lagoon. I'd like to explore a bit more, particularly around the waterfall."

"I agree," Adrienne said. "That lake is perfect for swimming."

The other cousins all agreed.

George turned to the other adults. "I don't have a problem with that. What say the rest of you?"

"We weren't in any hurry to go anywhere," Henry pointed out.

"We actually had no destination in mind," Keith agreed.

The moms were all content to stay longer.

"Do you need help from any of us?" Mike asked.

"You anxious to head to the waterfall?" his dad questioned.

"If we're not needed."

"I don't. Does anyone else?" George asked.

The women did not.

"We can make you lunch to take with you," Sara offered.

"Thanks, mom, that would be great."

"Are all of you going?" Sara wanted to know.

Affirmatives from all the cousins.

* * *

"Good call, Mike," Eric said as they walked.

"Thanks. Thought it might be fun to hang around here a few more days."

They walked at a quickened pace and made it to the lake faster than the day before. Of course, it helped that they knew where they were going. Today, they brought towels and blankets to spread out to sit and relax. A few yards closer to the waterfall was a clearing big enough to do that. The girls all stripped out of their bikinis and stretched out on the blankets. It was quite a sight to see the three attractive cousins all splendidly naked.

Sitting across from them to stare at their pussies, Mike said, "Guys, there's something you need to know."

The girls sat up.

"Last night," Mike went on, "I don't know what time, but late, someone walked through the salon and down into the port hull. All I could see was a silhouette, but her figure suggested it was Aunt Gloria."

"Gee, what a surprise!" Gayle said.

"I hope you were all where you should have been," Mike added. "I'm guessing you were because she returned to her cabin minutes later. So, I figured she didn't catch anyone."

"After I returned to our cabin," Cindy said, "I laid awake for a while, and no one opened our door."

"Don and I talked for a while after I got back," Eric said. "No one opened our door either."

"Did you kiss and tell?" Gayle asked, lightheartedly.

"Uh, uh . . ."

"It's okay," Gayle said. "I did, too."

They all laughed.

"That's the other reason I recommended staying," Mike told them. "This might be the only place we can, you know, have some fun."

"Good thinking," Don complimented.

"That also answers the curiosity we had," Adrienne said.

"We couldn't let you and Mike be the only siblings fucking," Cindy quipped.

Again, they all chuckled.

"Well, since we all know what we're all doing," Eric noted, "what can we do now?"

"Enjoy this time at the lake while we can," Mike said.

"Or think of another solution," Gayle suggested.

"I have a solution," Cindy said. "And Mike's right. We need to enjoy this time at the lake while we can. So, one of you guys come and eat my pussy."

Don and Eric looked at each other, then at Cindy.

"Who are you talking to?" Don asked.

"I think she's talking to one of you," Mike said.

"Go give it a try, Eric," Gayle urged.

"Me? It's his sister."

"He's going to eat me," Gayle said. "It's time we swap."

Eric and Don again traded looks. Remembering what his sister lectured him about Cindy, Eric shrugged and crawled on his belly between Cindy's legs. He took a lick.

"It's not an ice cream cone," Cindy said, as the others giggled. "Explore with your tongue."

"What are you waiting for, Don?" Gayle asked.

Reluctantly, Don took his place between Gayle's legs. Having heard what Cindy told Eric, Don dug in a little deeper.

"Mmmm, not bad, Donnie," Gayle complimented.

"Don't call me Donnie."

Mike and Adrienne traded smirks.

"I'm feeling left out," Adrienne remarked.

Mike took the hint and moved to get between his sister's legs. Eric tapped his shoulder a few minutes later and gestured to swap with him. Mike considered it a second before agreeing.

For the next few minutes, all that could be heard was the slurping sounds of pussy-lapping. Then, Cindy had a hunch and looked up.

"I was wondering how Eric suddenly got so good," Cindy commented.

That caused Adrienne to look up. "Whoa!"

Eric looked up from between her legs and grinned. "Sorry. I . . . uh . . . I, uh . . . I really wanted to—"

"Actually, that wasn't too bad," Adrienne said to Eric's satisfied grin.

Don looked up, saw his cousin where he wanted to be. "I want a turn!"

"What is it with you two?" Adrienne asked.

Eric yielded to Don.

"Jeez, guys, I'm not a . . . mmmm, that's pretty good, too."

Eric remained close, intently watching his cousin eating the pussy they had both eagerly wanted. Mike sat up to watch also, and then Cindy and Gayle joined the view party. Cindy tugged Mike's trunks down, and he did not resist as she sat in his lap, impaling herself on his hard cock. Neither attempted any other movement. Just having him inside her was enough for the moment. Of course, it didn't hurt that his cock pulsed inside her giving her just the stimulation she needed.

"I hope I'm doing this right," Don said. "It sure is good.""You're doing just fine," Adrienne said, somewhat surprised.

Remembering his lesson from the night before, Don reached up and gently caressed Adrienne's tits. Though smaller than Cindy's, they were still luxuriously soft.

Adrienne moaned at the unexpected attention to her breasts.

Taking that as encouragement, Don crawled up to suck each nipple tenderly. His sister hadn't taught him that, but he'd seen it in videos. He wasn't a complete novice.

Again, Adrienne purred her pleasure, recalling her brother's words that maybe Don and Eric weren't so bad. So far, at least Don wasn't. He was arousing her enough that she reached down. Feeling that he still had his swimming trunks on, she forced her hand under the elastic waistband to connect with his cock, which was rock hard and leaking pre-cum. She'd also remembered saying that the time would come when she would be desperate, and Don or Eric would be the only ones around. Even though they were not the only ones, Don was doing well enough to go all the way.

For Don, having Adrienne grabbing for his dick was all he could have hoped for. However, given his sister's lesson, it could also mean his cousin wanted to go further, so he quickly reached down to push his trunks down and squirm out of them. He ended up with his cock knocking on her pussy's door.

Adrienne could feel him against her. She twisted her head to look at her brother with Cindy sitting in his lap, his cock firmly implanted in her pussy. That looked erotic. Mike gave her a thumbs up. She then rubbed the head of Don's dick against her slit, and with him beginning to whimper, and her feeling the heat, she guided him in.

Don whimpered like a little girl. Adrienne felt divine. He knew a large part of the reason was because he had been attracted to her for so long, even though she was his cousin. He had fantasized about her many times. And now. To actually be fucking her was a dream come true. He took it slow and steady, wanting to enjoy the feeling and the moment.

Meanwhile, Gayle said to Cindy, "My turn."

Cindy got up without a fuss but had another idea. She laid down on her back. "Get on your hands and knees over me," she told her cousin. "Let Mike fuck you doggy style."

Gayle did as instructed, putting her pussy directly over Cindy's mouth. As Mike moved into position, Cindy lifted her head to lick Gayle's pussy. She also sucked Mike's hanging balls as he slid his cock into Gayle's pussy.

With a threesome rhythm going, and seeing that Eric was the odd man out, Cindy said, "Why don't you come stick that hard dick in me, Eric?"

He didn't need to be told twice. Everything his sister had told him about Cindy was true. Her pussy was delightful, as soft and accommodating as Gayle's. He was also face to face with his sister, and the two kissed.

Seeing the others engaged in a foursome, Adrienne whispered to Don, "You can go a little faster."

So, he picked up the pace. "Oh, yeah, that's nice."

Now, all that could be heard were the sounds of sex, which included soft moaning from all the players.

Adrienne was first to come, and it was more fulfilling than she had expected. That triggered Don, who pulled out to jerk his cock the rest of the way.

"You can come on my belly and tits," Adrienne offered. "I can go for a swim afterward."

He covered her with a bigger load than he could ever remember shooting.

Cindy started to feel her orgasm building. "Pound me harder." So, Eric did. She exploded a minute later. Without being told, and seeing his cousin come all over Adrienne's tits and abdomen, he simply pulled out and did the same to Cindy. She giggled feeling the warmth of his jism all over her.

Mike and Gayle were a little further behind, and having been together before, there's was no urgency for either to come. Gayle did start feeling her climax building, telling Mike to maintain his pace. She had a satisfying orgasm that had her shivering and moaning.

Mike finally pulled out, but rubbed his cock along her butt crack until he spurted his cream that rolled over her ass and onto her back.

"Now, this is what this club should be," Don said excitedly. "Mixing and matching."

"Yeah, it was fun to do it with someone different," Eric agreed.

"We should all go for a swim to clean up," Gayle suggested.

So, they did.

While chilling in the refreshing water to allow all the cum to be washed off their bodies, Mike asked, "Have any of you decided if you want to work for the company after college?"

"Why wouldn't we?" Eric asked. "Profitable, successful company, we'd probably all have managerial positions, couldn't ask for anything better. I'm thinking of architecture."

"I'm going to be the head of accounting," Cindy proclaimed. "I'm majoring in accounting and finance in college."

"You go, girl," Gayle said.

"I want to do interior design," Adrienne revealed. "What better place to do it?"

"I don't want to be stuck in an office all day," Don said. "I'll do construction supervision."

"That leaves Gayle and Mike," Cindy deduced. "Always figured one of you would become the president, the other exec VP."

Mike and Gayle looked at each other.

With a smirk, Gayle said, "I could be happy with Mike being on top."

The others all chuckled at the double-entendre.

"Joking aside, I'm not sure I want that much responsibility," Mike said, being serious.

"Why?" Gayle questioned. "During that storm, you took charge. That shows leadership. All the parents noticed, too."

Mike shrugged. "Actually, I was considering buying a boat, sailing around and doing my own You Tube channel."

"We could all do that," Don said, playing along. "Six cousins. There's no other tube like that. Imagine all the fun we'd have."

"Wouldn't be able to record much of that," Mike noted to the chuckles of the others.

"I'm enjoying this trip, also," Adrienne said. "But I wouldn't want to do it all the time. Count me out."

"I agree," Cindy said.

"Well, without the female members of the club, what do we have?" Eric posed.

"Why don't we see about buying this island," Don suggested. "We could come have our board meetings here, just like we are now: naked in the water."

They all laughed.

"Not sure how much work would get done," Cindy said.

Mike stood. "I like that idea, so I'm going to go explore more of the island."

"We came across a stream that emptied into the ocean," Cindy said, pointing to the end of the lake opposite the falls. "I'll go with you."

"I could use a walk, too," Gayle said, standing. "We should probably dress, though."

So, they did.

"I'm content here," Adrienne said.

"I'll stay with you," Eric offered.

"So, will I," Don said.

"You kids behave yourselves," Cindy said.

"Are you?" Don asked.

"Not if I can help it!"

* * *

They found the stream exactly where Cindy suggested it would be, directly at the other end of the lake. Following it, in some places they had to walk in it. It took a couple of hours to reach the ocean. It was a beautiful site. The stream was actually several feet above the beach causing the water to cascade down to the beach and into the ocean.

"So, now that we're here, what next?" Cindy asked, plopping down on the beach.

"I don't know," Mike said, taking a seat in the sand next to her. "It was just something to explore. I was surprised that the stream didn't branch off anywhere. Even though it wound a bit, its course was fairly straight to the sea."

"Do you want to walk to the boat along the beach or back the way we came?" Gayle asked, sitting on his other side.

"I'd like to follow the beach," Mike said. "But I know both of you have already done that."

"If we're not in a hurry, we could fuck around a bit," Cindy suggested.

"And I'm sure you mean that literally," Gayle surmised.

"Well, of course." She crawled between Mike's legs and gently rubbed his cock through his trunks until he was hard. "Well, that was easy enough."

Neither did he resist when she tugged his swimsuit down and off. And he laid down on his back when she started sucking him.

"Well, you didn't put up much of a fight," Gayle noted, lying down, and facing him.

He shrugged. "I've never had this kind of attention. Besides, who can resist two beautiful women?"

"Oh, you smooth talker."

"You want smooth? Sit on my face."

Gayle didn't hesitate to strip off her bikini bottom and squat over his head. His tongue was waiting. She tasted of lake water, which was not bad, but the feel of her pussy on his lips was delicious. She moved up and down and side to side so his tongue would hit all the right spots.

Down below, Cindy was devouring his cock, and it felt marvelous. He had a suspicion that they would not make it back to the boat without some sort of sexual activity, particularly when Cindy wanted to come along. He also wondered if Adrienne wanting to stay was calculated so he could have time alone with his female cousins, and/or was she coming around to the male cousins and wanted time alone with them? Surely, she anticipated Don and Eric would want to stay with her.

Using his hands on her butt to halt her movement, Mike asked, "Mind if I stick something else in there?"

"Thought you'd never ask. Slide down, Cindy."

Gayle moved backward down Mike's body until her backside connected with his standing cock. He could feel that Cindy never let go of it, stroking occasionally, until he felt her guide it into Gayle's pussy. As Gayle bounced on him, Cindy massaged his balls. She licked his shaft as it went in and out.

A moment later, Gayle giggled. "Ooh!"

"What?" Mike asked.

"She licked my perineum and my butt hole," Gayle reported. "It tickled."

Cindy spread out a beach towel next to them and said, "Mike, roll her over onto the towel."

So, he did, and he now fucked her missionary.

Having done what they did at the lake, neither were overly aroused, but with Cindy's assistance in playing with their genitals, Gayle had a satisfying climax. Naturally, Cindy wanted a turn, which is why she did less to make Mike come. There was a tall palm tree nearby with a trunk that sloped at a sharp angle low to the ground, such that someone could lean against it. This was where Cindy chose to be fucked. Using another towel as padding, she leaned against it with her arms back and holding onto the trunk. It was actually the perfect angle for Mike to be able to stand and pump her.

"Wish I had a picture of this," Gayle commented. "Talk about a tropical scene. We'll have to remember where this palm is."

Much to the surprise of the cousins engaged in coitus, Gayle participated by caressing Cindy's tits and playing with Mike's ass and balls. For some reason for Mike, having Gayle's handiwork provided unexpected stimulation. The ever-horny Cindy felt it also, though she didn't really need it, but appreciated it nonetheless. Letting go of her hold on the trunk, Cindy switched her grasp to Mike's ass, pulling on it so he would thrust more fiercely. He complied bringing her to a trembling orgasm that nearly had her rolling off the tree.

Mike was beginning to feel it also, and the knowledge that he was making a girl come was added arousal to bring him to the edge.

Sensing his impending climax, Cindy whispered, "Please don't come inside me this time. Don't want your cum dripping down my legs when we get back to the boat."

Mike chuckled. "Good idea." He pulled out, turned her around, and rubbed his cock in her butt crack until he sent cream running down it and onto the tree trunk.

When she felt him no longer ejaculating, Cindy turned and kissed him passionately on the lips, extending his erection. She then reached out and pulled Gayle to her, bestowing a kiss on her, as well. "I love you guys. It's been amazing getting to know you like this. I really hope both of you go to work at the company. We'll have so much fun!"

"What if one or all of us get married?" Gayle asked, walking into the water to clean up.

Following, Cindy said, "We'll either have to be very careful, or make sure we find open-minded partners."

Mike came into the water, and after they all felt cleaner, they dressed and headed off down the beach.

* * *

Meanwhile, back at the lake, once Mike, Gayle, and Cindy were gone, Adrienne announced she was going for a shower, to the curious stares of her cousins. They watched her swim toward the falls and climb onto a rock where she was standing out of the water.

"Dude, she is fucking gorgeous. You lucky son-of-a-bitch, you got to fuck her," Eric whined.

"Don't call my mother a bitch," Don shot back.

Eric had to think about that for a few seconds. Taking his cousin seriously, he said, "It's just an expression. I didn't mean—"

"I know. I'm just fucking with you."

"I wish I was fucking with her," Eric said, nodding toward the falls, as Adrienne stepped under the water. He watched her standing on the rock, statuesque, her skin shimmering with the water cascading off.

"You'll get your chance. The club seems to be interactive."

Adrienne then dove back into the water and swam back to the boys. "I'm going to get out and dry off and then we should probably head back."

Like puppies, the boys followed. Adrienne stretched out on the blanket, remaining nude, much to their satisfaction. Presumptuously, the guys laid down on either side of her. Both males were sporting erections that stood up like flagpoles on the beach. She found that amusing.

Though she was generally pleased with her looks, Adrienne didn't consider herself beautiful by any stretch. So, for her to be receiving this attention from her cousins was weird. She wasn't used to it. They had all gone to the same high school, and she'd never received this kind of attention from them or any of the boys there. Of course, she realized that it would have been odd for Don or Eric to have done that at school. Everyone knew they were cousins.

She also realized that the tribulations of this trip had all the cousins looking at each other differently, which obviously had the boys looking at her through more lustful eyes, but also had her seeing them as real males and not just the cousins she had known most of her life. They were just boys when they first set sail. They were now virile young men to her. Despite her initial hesitance to sleep with either one of them, Don had actually been quite a sexual surprise. Eric was of equal size and build; in fact, the familial resemblance was such that they could be mistaken for brothers. The question became were they of equal skill? Maybe it was time to give him a turn. After all, he had been acting as though he was shortchanged.

Adrienne sat up. Comically, Eric and Don did the same. Without a word, she straddled Eric's lap, his hard cock being pressed between her legs. He looked down at that area, and then up into her eyes with a huge grin. She moved up and down, rubbing her pussy against his dick. He let out a whimper.

"Wanna go further?" she asked.

His eyes widened, and he nodded vigorously.

Lifting herself up enough, she guided his rod into her pussy, and then eased back down until he was completed engulfed inside her. They both moaned.

"I never knew it would feel so good," he murmured.

"It does, doesn't it." It did. He felt as good as Don had. She wasn't sure what it was, but there was just something about having a dick inside her. To be different, she stretched out her legs around his hips leaving them straight. In this position, she couldn't move up and down, so she rotated her hips around on his pole.

"Wow!" Eric exclaimed. He glanced at Don, who also had a huge grin. With wide eyes, Eric again mouthed, "Wow!"

His cousin merely nodded.

Eric took a chance and put his arms around Adrienne, she then did the same, and he felt like he was in hog heaven.

For Adrienne, this rotational fuck was amazing. She loved the way his cock rubbed all around her vaginal walls. She'd never gotten this feeling the few other times she'd been fucked. It would be interesting to try this with Mike since he was a little bigger in both body and dick. But for now, Eric's was just fine.

Taking another shot, Eric pulled Adrienne closer and pressed his lips to hers. It took her by surprise, but he was gentle, and the kiss was actually kind of sweet. She did not resist, and instead felt his cock pulse inside her. Now, she wanted to come, so she pulled her legs in so she could bounce on his dick. This also enabled him to thrust up, and it didn't take long before both were feeling the beginnings of orgasms.

For Adrienne, and the few times she'd had sex, there was nothing like coming from intercourse. She'd had her share of orgasms from masturbating, but that explosion from coitus was unlike anything else. She ground her pussy against him to further her climax along, and then finally, it came. The tingling, the tensing, the shivering. And then being able to express her climax aloud. It nearly frightened her cousins.

But it was also the stimulus Eric needed, even though just being inside his beautiful cousin had him well on his way. Sex with his sister had been exciting, to be sure. After all, she had been his first. But he hadn't wanted her as much as he wanted Adrienne. And now, to finally be with her. Her vagina was the most amazing experience he had ever felt. If only he could . . .

Adrienne noticed Eric was breathing heavier, and his cock was pulsing frequently. He was about to come, but he wasn't trying to pull out. "Eric, don't come inside me!"

Still, he did not pull out.

"Eric!" Adrienne quickly rolled off him.

"Dude, what the fuck are you doing?" Don shouted.

Eric started spurting, but fortunately Adrienne was out of the way. He also snapped out of it, realizing what he had done. "Oh, no! I'm so sorry! I was so mesmerized by being with you, I guess I just zoned out. I'm really sorry. I wouldn't do anything to hurt you."

Adrienne was staring daggers at him. "Seriously?" She stood and stormed into the lake to clean off. After only a minute, she stepped out, hurriedly put on her bikini, and headed toward the beach.

The boys did the same and had to run to catch up with her.

"Please, Adrienne," Eric pleaded as they walked. "I didn't mean—"

She stopped, turned, and got in his face. "Don't ever fucking do that again!"

That actually scared the shit out of Eric. "I won't. I'm really sorry."

They resumed their walk in silence, which made the return trip seem longer. Each of the three became lost in thought as they walked, and so were surprised when:

"Well, you look like you're up to no good." The adults were all sitting on the beach, each enjoying a beer, work on the boat completed.

"Well, you look like you're up to no good," Gloria commented.

Emerging from the interior, Adrienne, Eric, and Don stopped short at the remark.

"What the hell does that mean?" Gayle asked as she, Cindy and Mike also appeared from down the beach.

"Nothing," Gloria said, forcing a smile. "You all just look worn out."

"We've been doing a lot of walking," Gayle explained. "Exploring the island."

"We actually have been up to some good," Mike spoke up. "We had the first meeting of the future board of Robinson Constructors."

"What does that mean?" George sat up and asked.

"Well," Mike explained, "Eric is going into architecture. He'll be our lead designer. Adrienne will be our interior designer, and that'll be a new service we will be offering, and she will work closely with Eric on that." Mike noticed Adrienne, Eric, and Don exchange questioning glances. He looked at them with raised eyebrows, and they each nodded their agreement. "Cindy will be our chief financial officer as she is majoring in accounting and finance. As for Gayle and me, well, either of us is fine with the other being on top."

The cousins all giggled at Mike's double-entendre, much to the parents' curiosity.

"Is this for real, Mike?" a hopeful George asked.

"Yes," Gayle said for him. "As real as this shipwreck. We really all discussed it while, you know, sitting around the lake."

More smirks at that.

"This is wonderful news!" George exclaimed, rising to his feet.

Henry was right behind him, smiling broadly.

The rest of the parents all rose.

Sara came to Mike and hugged him. "You're doing the right thing."

He smiled. "Thanks, mom."

There were similar exchanges between the other parents and kids.

"So, how did work on the boat go?" Mike thought to ask.

"Oh, yeah," George said. "With your news, we forgot."

"The boat is back in full working order," Keith reported. "Electrical issues were relatively minor. We can set sail whenever we want."

The cousins exchanged sour glances.

"Do the navigation charts show our location?" Gayle asked.

"According to GPS," Henry said, "there is no Island where we are, which is about a thousand miles southwest of San Diego."

"A thousand miles! How is that possible?" Cindy asked.

"We don't know," Henry answered with a shrug. "It's inexplicable."

"It doesn't seem possible that there could be an uncharted island where we are," Keith added.

"This island is very small," Eric noted. "Is it too small to have been noticed?"

"Seems unlikely."

"Did the storm drive us this far?" Mike asked.

"That's the only—I was going to say logical," George said. "But it's not a logical explanation. It's the only explanation that fits."

"Regardless how we got here, do we have to leave?" Don asked.

"You kids want to stay?" Gloria suspiciously asked.

"It's fun here," Don said. "We have an entire island to ourselves."

"And there's more exploring to do," Mike said.

"More exploring, huh?" Gloria asked. "Well, one good thing about it. All this togetherness has shown that you kids can get along and work together. You've made your fathers very happy. I'm okay with staying longer."

"I don't mind staying another day or two," George agreed. "It would be nice to relax versus the chore of sailing. But the purpose of this trip was to go sailing, and that was interrupted by the storm. Anyone have other thoughts?"

"I agree," Keith said.

"Let's take it a day at a time," Henry suggested.

* * *

A while later, the parents returned to the boat to prepare dinner and have sundowners, leaving the kids on the beach.

"That was odd your mom agreeing to staying here longer," Cindy noted.

"I get the sense she's up to something," Mike explained. "I mean, remember what she said when we all returned?"

"What do you think she's up to?"

"Trying to catch me, if not all of us."

"There's something I don't think all of you know," Gayle said. "Which might explain that. The morning after our first night, my mother questioned me wanting to know if Mike had touched me during the night."

"Seriously?" Eric asked.

"Yes."

"My mother questioned me also," Mike revealed, "but I think only because Aunt Gloria might have said something to her."

"And my mom continued to ask after every night Mike and I slept together," Gayle added.

"I told you about her late-night walk through the boat and down into the port hull. I've just been getting this strange feeling about her," Mike said. "We just need to, you know, keep our wits about us. Hopefully, you've all had enough fun today to, you know, stay out of trouble tonight."

* * *

Mike intentionally wanted he and Adrienne to sleep in the salon again to see if Gloria did another midnight walk-through. It wasn't his sister's first choice, but she agreed.

Once in bed, with her lips against his ears, she whispered, "So, we're really not going to do anything?"

"How many times did you, you know, get—"

"Fucked? Twice."

"And you want more?"

"Neither time was with you," Adrienne pointed out. "Don was pretty good, Eric almost came inside me."

"You're on the pill, aren't you?"

"Yeah, but I didn't want him to, particularly since we would be coming back to the boat afterward. Didn't want it dripping down my leg."

"Okay. So, twice wasn't enough?"

"If it has to be."

"It's been a busy day. Get some sleep."

Adrienne groaned, and then turned over. Surprisingly, she fell asleep relatively quickly.

Slumber did not come easily for Mike. At first, he thought he was just too fatigued to sleep, but then it occurred to him that he was just tired and not really sleepy. He kept changing positions, thinking that when he found the right one, sleep would come. And it almost did. Until Gloria again appeared. That kept him awake. Particularly since the dim ambient light revealed that she was wearing a very short nightie. He watched her tiptoe through the salon, but to his complete surprise, and somewhat concern, she walked right past him and slipped out of the salon to the cockpit outside.

Mike turned to his sister and found her sound asleep. He was about to ease out of bed and follow his aunt when, to his further amazement, Regina stepped up from her cabin and went after her sister. Now, Mike was extremely curious. Slipping out of bed, and squatting beside it, he watched Regina strangely go up to the sun lounge. That was really odd. Quietly, he opened the door to the cockpit, slipped out, and closed it. He moved around the helm station and up the steps to the sun lounge, but stopped where he could listen without being seen. He heard:

"What's the matter, sis. I heard you leave your cabin and head to the salon. I followed to see if something was wrong, and then I thought it was strange that you would come out here in the middle of the night."

"Henry snores," Gloria explained. "And on nights after days when he's been busy—as the men were yesterday—his snoring is even worse. I couldn't sleep. And now that they're running the air conditioning again, it was very cold. So, I came out here to warm up. And if that's not enough, he fell asleep before we could fuck."

"Yikes. That's awful."

"Yeah. Remember when . . ."

Mike continued to listen to their discussion, almost disbelieving what he was hearing.

* * *

When he finally returned to bed, having heard what he heard, there was no way Mike could sleep. It was mind-boggling. The concern uppermost in his mind was whether to tell his sister and cousins. Did they need to know? Was he glad that he now knew? Was it important that he knew?

By dawn, he had not resolved these questions in his mind, having apparently dozed off and on during the remainder of the night, and rethinking them each time he awoke.

At breakfast, everyone else seemed in good spirits. The parents because there was no boat work to be done and they could relax; the kids because they were anxious to get to the lake, ostensibly to swim and explore. But Mike knew the real reason was for sucking, fucking, and carrying on. As tired as he was, he just wanted to go back to bed, but he knew to do so would raise more concerns and eyebrows than them going.

Mike followed his sister, with Gayle and Cindy ahead of her, and Don and Eric eagerly leading the group inland. It seemed the trip was shorter each time they did it, as though their trail was being worn down making it easier to traverse. Comically, the cousins all gradually stripped as they walked, arriving at the lake completely nude. Adrienne was a bit more circumspect and waited until she arrived to remove her bikini. Tired as he was, Mike merely laid out a beach towel, and stretched out on the ground near the shore to relax.

"Are you okay, Mike?" his sister asked.

"Didn't sleep well. Just tired."

Adrienne joined her cousins who were already in the lake, just enjoying the water at first. But that quickly graduated to grabbing each other and fondling body parts.

"Anybody ever fuck in the water?" Don asked.

"I haven't," Cindy replied. "But I'm game."

The siblings tried different positions thinking they could float, but they kept going under and couldn't hold their breath long enough to do some serious thrusting. The only other position that really worked was getting in the water just deep enough to do it doggy style.

"Your pussy feels so good," Don said.

"Your dick doesn't feel too bad, either."

Since no one did anything the night before, they were eager to get going this morning.

Eric and Gayle were also in a hurry to get to it. They wanted to try it just being wet but not in the water. In the end, the sex satisfied their desires for orgasms, but was not as much fun doing it.

Mike hadn't actually fallen asleep, particularly with all the sexual sounds coming from the water. But there was one additional sound he was hearing that captured his attention. Opening his eyes and turning his head, he saw Adrienne lying nearby with her hand between her legs making little whimpering sounds. With him resting, she was odd person out. That made him feel bad.

"Want to sit on my face?" he offered.

"Are you kidding?" She instantly got into position. His tongue felt marvelous.

Tired though he was, her sweet pussy was too much of a delicacy to pass up. He loved the feel of her clit against his tongue. His dick quickly grew to full erection.

Seeing their activity, and noticing the bulge in Mike's trunks, Gayle figured he was open for business. She scrambled to him and tugged his swimsuit down and off. On hands and knees, she sucked him like she meant it.

He actually enjoyed it.

This threesome did not escape Cindy's attention, and her kinky side instantly had an idea. She'd approached her cousins, laid on her back, and squirmed her head between Gayle's legs. Here, she was able to apply tongue to pussy as Gayle dipped her midsection to meet Cindy's mouth. After a few delicious nibbles, Cindy took a breath and noticed Don and Eric standing nearby pulling on their cocks. "Don, get in here and shove your dick in this hole." She slid her finger into Gayle's pussy as a way of pointing to the hole she was referring to.

With a huge grin, Don quickly complied. He moaned when his sister licked his balls as he pumped his cousin. He also received a moan of approval from Gayle.

That left Eric. Cindy reached down and slapped her own pussy. "In here, Eric."

Smirking at not being left out, Eric took up his place between Cindy's legs. Her pussy seemed to suck his cock in. Remembering his time with this cousin the day before, he was now eager to be fucking her. As he had realized then, she was indeed a terrific lay.

Even with his tongue lapping his sister's pussy, Mike could hear the other sounds of sex going on. "Might want to turn around," he suggested to Adrienne, who had been facing toward his head.

Without question, she complied. "Wow!" she exclaimed. "You should see this."

"What?" Mike asked.

Adrienne described the chain in front of her: Gayle sucking Mike, Cindy eating Gayle, Don fucking Gayle, and Eric screwing Cindy.

Mike wasn't really surprised, instead merely chuckling.

And so, it went. Each person was enjoying what they were doing immensely, not caring about anything else, the calming sounds of the waterfall providing a false sense of contentment.

"What the fuck are you kids doing?"

The next scene was comical as the cousins' sex chain fell apart as though someone had thrown an object that knocked them all over. Most of them scrambled to grab towels to cover up.

"What's going on here?" George asked as the parents all appeared at the lakeshore.

Wrapped in their oversized beach towels, the cousins, except Mike, sat huddled together in a staring contest with their parents. Believing the explanation to be up to him, Mike stood with no regard for his nudity.

The mothers had arrived a few steps ahead of the fathers, and the women maintained a small distance apart, enough that the men did not hear their wives gasp at the sight of the eldest male child's imposing manhood.

"Holy shit!" Gloria said almost under her breath. "You didn't tell us your son was so well-endowed, Sara," she whispered.

"I didn't know," Sara replied, equal amazement in her voice.

"So, when we all planned this trip, we didn't consider everyone's personal needs," Mike pointed out.

"You should probably cover up," George suggested.

"No, no, no," Regina squealed under her breath. "Don't cover up."

Sara elbowed her sister as Gloria snickered.

"What do you mean, personal needs?" George asked.

Gayle stood up, holding her towel in place, and handing one to Mike. "In other words, you guys have your spouses, so you can go to your cabins at night and attend to your... needs. We—" she gestured to her brother and cousins "—didn't anticipate having to share cabins and beds and not having any privacy to take care of our personal needs."

"I think we understand what you mean by privacy to take care of your personal needs," George said, "but this looks more liked group sex than anything personal."

"Our needs grew," Don said, to the snickers of the others.

"What he means," Cindy clarified, rising to her feet, allowing her towel less snugness, "is that we found that working together produced better results."

"Is that supposed to be funny?" her father asked.

"Not at all. You know, we have all agreed to work for your company, something you all desperately wanted, and you're thrilled about that, but then you won't recognize that we're all of age and can—"

"Are you looking for approval to do . . . what you've been doing?"

"No," Mike said. "But your questions and tone imply that you do not approve."

"Should we?"

"A better question is, how much worse is this than what you all used to do?"

"What are you referring to?"

Mike turned to face his sister and cousins. "Do you guys know how our parents met?"

"At a party. So what?" Don said impatiently.

"Three brothers and three sisters looking for love in all the wrong places," Mike corrected. "There were drugs at the party, so the three brothers rescued the three sisters, and took them to my dad's apartment, where they had— wait for it—an orgy."

There were gasps and guffaws.

"It wasn't an orgy," Sara countered.

"Apparently, all the guys did all the women, and vice versa," Mike went on.

"Are you fucking kidding?" Don questioned.

"No."

"It wasn't an orgy," Regina protested.

"What was it?" Cindy asked.

Sara growled. "We liked them, and they liked us, and we enjoyed spending time together."

"And in future get-togethers, they weren't particular about who did who," Mike clarified.

"Whom," Gayle corrected.

"Doesn't matter. They still all did each other."

"Where is this going?" Eric demanded.

"They were going to find out sooner or later," George noted. "Might as well tell them."

"As time went on," Gloria went on with the story, "we paired off, not intentionally by age, but that's how it went. George and Sara. Henry and me. Keith and Regina. But we still all got together and . . . enjoyed . . . each other."

"Don't tell me," Gayle said, where this was going dawning on her. "Are you saying—"

"We don't know who fathered—" Gloria glanced at her daughter "—whom."

"You're telling me Henry is not my dad?" Eric bellowed.

"We don't know," Henry admitted.

"Did you try to find out?" Eric persisted.

"We didn't think it really mattered," George said. "We're all brothers. They're all sisters. All the same blood."

"Are our mothers our real mothers?" Adrienne asked.

"Yes," Sara quickly answered. "I gave birth to you and Mike."

"What's the point in telling us this, Mike?" Cindy wanted to know.

"Because it sounds to me like our parents were no different than us," Mike explained. "Three horny brothers who met three horny sisters at this party. They all left and went to my dad's—or George's—apartment. They had sex with each other because—"

"Because we loved sex and couldn't get enough," Gloria spelled it out.

"And we met our match in the Robinson brothers," Regina added.

"Sounds pretty wild to me," Gayle mused.

"So, you didn't just pair off," Cindy deduced. "You had group sex."

"Yes," Gloria admitted.

"So, you can't really criticize us," Eric said.

"The difference is," Sara said, "we weren't doing it with cousins or siblings."

"We don't have anyone else," Cindy argued.

"Doesn't make it right," her mother said.

"You loved sex and couldn't get enough," Gayle repeated. "What if all you'd had was siblings or cousins? What would you have done then? You, too, dad?"

"We weren't faced with that situation," Henry countered.

"What are you guys even doing here?" Gayle asked. "Mom has been suspicious since we left. Did you come to catch us?"

"We brought food," Gloria informed her. "You kids have been all over the island and we've barely left the boat. We just wanted to see the lake and waterfall you all rave about. Have a picnic. Obviously, that was a mistake." She put down what she was carrying. "Enjoy. We'll see you back on the boat." She turned and headed back down the trail.

Gradually, the other parents followed.

"We were bound to get caught," Mike said. "We were getting careless."

"How did you learn about our parents?" Eric asked.

So, Mike told them.

"What do we do now?" This from Adrienne.

They all settled down, freeing themselves of their towels.

"I think we first have to decide how we feel about what we've been doing," Mike mused. "We all knew when we started that it was—"

"Wrong?" Eric interjected.

"Considered wrong," Mike amended. "But we all did it anyway. Was that because we were all so horny we didn't care who we were doing it with? If that's the case, then we can either be contrite and go back to the boat with our tails between our legs and say, we were wrong, we're sorry. Or if we don't care and don't believe it's wrong, then we can be defiant and say, we're not going to stop."

"And expect a pretty cold trip back," Gayle added.

"Those are just my thoughts," Mike pointed out.

"Well, I don't think it's wrong," Cindy spoke up. "It might be frowned on by society, but there are a lot of things that people frown on that other people still do. I enjoy having sex with you boys. I also think it's probably safer than doing it with guys that I don't know from school, or at parties, or other places. And you don't know who and where they've been."