JILL'S EIGHTEENTH BIRTHDAY

My cousin's eighteenth birthday was a couple days ago but the family had decided to wait a couple days to celebrate since it fell on a Wednesday. It made sense to wait for the weekend since it meant no one had to worry about leaving early or anything and it was a bit of a drive for some of us. Opportunities for us to get together had become fewer and fewer over the years as the children had grown into teenagers and were now pushing in to adulthood. Partly that's what this was, just an excuse for us to spend time with each other. That's what most of the bigger holidays had become as well.

I seemed to be the last one to arrive at my parents' house that night. Unless anyone had a new car since last time they all seemed to be accounted for. The driveway wasn't really designed for anything more than two cars but it had space and we put up with awkwardly trying to get someone out every now and then. More commonly, whoever's car was last in got stuck with running any last minute errands.

After getting inside the house I was briefly greeted by my parents and my aunt and uncle before being directed downstairs. The basement was typically where my sisters, my cousin, and me would hang out while our respective parents stayed upstairs. It was a pretty nice space with one large, main room and a couple smaller ones at the ends. When I still lived at home I had at some point made one of those rooms into a bedroom for myself, and that was usually where I still slept when I was over.

As I had guessed my cousin Jill was already there, lounging on the sofa. My older sister Angela, though she preferred Angie these days, was there too lying on a mattress that had been set up on the floor between the couch and television. It amused me sometimes how one of the first priorities the girls had was usually where everyone was going to sleep. I was happy enough just to go wherever nobody else had claimed when I got tired enough.

My little sister Kelly was the first to actually see me coming and immediately raced toward me. She was a month older than Jill, leaving our mutual cousin as the technical baby of the family, but it wasn't enough of a gap to matter that much.

"Nick, you made it finally!" Kelly said, throwing herself at me for a hug. "We were starting to think you wouldn't show up."

"I'm only like half an hour later than I planned on," I protested.

As the only one in the family with a habit of being late rather than early, I had long ago learned to deal with the occasional teasing about it.

Kelly led me over to the couch where Jill sat up enough to give us room. Neither Angie nor Jill were actually excited enough to see me to get up, but my cousin did at least give me a hug once I sat down.

"So what have you guys been doing before I arrived?" I asked. "I'm assuming it was more than just sitting around waiting for me."

"Oh, you know, mostly talking about you while we had the chance," Angie said with a hint of an evil grin on her face.

Kelly glared at our older sister as though it would have any effect. Jill stared conspicuously straight ahead and took a long swallow from the cup she had on the table beside her.

"I don't suppose you're going to tell me what about?"

"Nothing too much," Angie continued, predictably ignoring Kelly. "We were settling sleeping arrangements, probably two of us on the mattress, one on the couch and you in your room. Nothing unusual. But then we were thinking maybe we shouldn't exclude you like that, you might prefer sleeping surrounded by girls wouldn't you?"

I noticed that both Kelly and Jill had relaxed and assumed that wasn't what they were worried about Angie telling me. Not to mention the obvious clues, obvious to me after long years of practice anyway, that let me know when she was making shit up.

"I think it probably loses some of its appeal when the girls in question are all related to me," I said, pitching my voice to sound like I was legitimately considering the suggestion.

The best way to deflect her attempts at getting to me was usually to play along a little rather than being too defensive and just giving her more to work with.

"Really? So you're telling all those times I caught you staring at my boobs I must have just been seeing things?"

"Absolutely," I said earnestly. "I'd probably stare at Jill's if anything, they're nicer."

I felt a small twinge of guilt at bringing Jill into it like that, but I knew none of the girls would have a problem getting even if I said something too inappropriate. My not-entirely-thought-out statement might also have subconsciously come from the awareness that, while not necessarily nicer than Angie's, her breasts had certainly developed over the past couple years. Not that it was the sort of thing I was supposed to notice.

As it turned out all I got from Jill was a surprised giggle before she slipped sideways onto my lap. I wasn't expecting that, but I automatically wrapped my arms around her waist while she turned to Angie.

"See, I'm his favourite so nyah," Jill said, sticking her tongue out at Angie.

Angie continued to smile but she did shut up after that. I speculated sometimes that she didn't really mind losing so much as long as it was her game that we were playing. Or it could be that she knew I was now uncomfortably aware of my cousin's breasts and their proximity to me. She was devious that way.

As Jill turned back toward me a bit I caught the definite smell of alcohol on her breath. It wasn't a surprise exactly, 'sneaking' booze into the basement was something that had started a while back though it had mostly just been me and Angie who drank any at first. I didn't mind that Jill was drinking now, she just seemed to be a little quicker getting started than I remembered. Then again, it had been at least a few months since I'd seen her last. Who knew what had changed in that time.

With a sigh of boredom Kelly flopped down on her back onto the mattress beside Angie. The way she landed her shirt pulled tighter across her chest than I think she realized. Her breasts were probably the smallest among the three girls, although not by much. Certainly they were big enough to stand out when she wore something tight enough. Again, not the sort of thing that I was supposed to notice.

It wasn't like I could help checking them out every now and then. It wasn't my fault that they were so distinctly female. And despite the teasing I got over it, I don't think any of them really minded either. The one time I'd accidentally seen Angie topless, just barely, she'd only rolled her eyes and called me a perv and that was the end of it. It made it easier to put up with the occasional fabricated accusation.

"So what are we gonna do now?" Kelly asked. "This isn't much of a party so far."

"Birthdays are another one of those things that don't always get better with age," Angie said.

"We've traded silly hats for silly arguments you mean?" Kelly said.

"I wouldn't have to argue if Nick would just accept that I know what I'm talking about," Angie said. "He only pretends he's not interested because he's worried we'll pick on him more."

"Now you're just starting to sound crazy," Kelly said.

"Oh yeah?"

The wheels were turning in Angie's head, I could see it. She was up to something.

Angie pushed herself up on to her knees, then pounced on Kelly without giving her a chance to react. She pinned Kelly to the mattress and turned her head toward me just for a second, just enough to make sure I was watching.

"Let's see him try to pretend her doesn't enjoy this," she said.

Kelly squealed as her older sister kissed her, but I could see that she wasn't actually struggling at all. Mostly she seemed to be letting Angie do whatever she wanted without protest. Angie wasn't being overly aggressive, but she was keeping up pretty steady contact between their lips and one of her hands was wandering dangerously close to Kelly's breasts.

I had no doubt what they were doing was an attempt at getting to me rather than anything real, but that didn't mean it wasn't working. I couldn't help wondering if they had planned this ahead of time, or whether Kelly was just going along with it for her own reasons.

Despite my best efforts I was getting hard watching my sisters making out. That on its own wouldn't have been such a big deal if not for Jill still occupying my lap. She was bound to notice sooner or later if those two didn't cut it out.

Suddenly Jill looked at me with an expression on her face that told me she could, in fact, feel me poking her butt. I started to apologize, but her finger was instantly on my lips and she shook her head very slightly. She obviously understood why I would be getting an erection and maybe she didn't want to let Angie know how much of an effect it was having on me. Then again, maybe she was just embarrassed about it. She remained exactly where she was though instead of returning to her original seat, which made it even harder to figure out what she was thinking.

Angie finally pushed herself up on her arms, separating her and Kelly. My younger sister had an almost flushed look on her face and seemed on the verge of giggling nervously. Angie, however, was only interested in my reaction. She could see that I had been staring at them, and how could I not? She would probably take that as a victory regardless of what the effect on me had been.

As I suspected, Angie looked quite pleased with herself as she climbed off of Kelly. I really didn't have anything that I could say that would be of any use to me either, so I kept quiet and hoped that was the end of it.

"Alright, well that's taken care of," Angie said. "Who's up for watching a movie?"

She spoke as casually as if the past few minutes simply hadn't happened. I was okay with that, moving on probably was better than dwelling at that point.

There was a general agreement to Angie's suggestion since, presumably, no one else really had any other ideas. Not encountering any resistance she stood up and nudged Kelly with her foot.

"Come on, let's go get snacks," she said. "You two pick something out while we're gone," she added to Jill and me.

My sisters departed to the upstairs, leaving me alone with my cousin. She made no move to get up and I really wasn't going anywhere with my legs trapped underneath her.

"So, any ideas?" I asked, nodding toward the shelf of dvds.

Jill chewed on her lip, clearly trying to make a decision far more important than the one I'd given her.

"Nick, I have something to talk to you about. Something to ask you I guess," she said in a serious tone.

"Uh, okay. What is it?"

"It's something you might not like."

She squirmed uncomfortably at the prospect of actually saying whatever it was she had to say.

"I promise I'll try not to be upset or anything," I said, now intrigued as to what it could possibly be.

"I want you to have sex with me," she said.

It was safe to say that I hadn't seen that coming. I stared at her like an idiot for a long moment, not sure how to respond or even that I'd heard correctly.

"What!? Why?"

"'Cause I'm eighteen and I'm still a virgin. Well, not physically I mean, but I've never been with a guy or anything. I'm getting tired of it."

"Jill, come on. It's not a big deal. I mean, think about it."

"I have!" she said a little louder than she intended. "I've thought about it way too much. And you might think it's not a big deal, and you're right in some ways, but it means a lot to me."

"I know it does, but it's just symbolic. It's not actually going to change your life it some meaningful way."

"It'll let me believe that someone loves me, at least for one night," Jill said softly, staring down and away from me.

"Jill...."

"You wouldn't have to for real, you wouldn't even have to pretend. I could make myself believe it," she added quickly. "I know it probably seems kind of pathetic, but you've always had your sisters. All I have is you guys sometimes when we get together. Most of the time when I'm sad or upset or whatever I pretty much have to deal with it on my own."

I never would have considered that she would be having emotional issues on this level, never would have even crossed my mind. Now that I knew it was breaking my heart to see her so desperate.

"If I just wanted sex, I could get that," she said, perhaps just to fill the silence. "But with anyone I genuinely care about, or think I do, it doesn't work out. Never does. I'm trying really hard to tell myself it isn't me, that I'm just unlucky or maybe I'm still too young. Probably both actually. I think... I think with you it could work though, it would give me something that I've never really had."

"It wouldn't need to be sex though, would it?" I said. "I mean, me and Angie and Kelly are all here for you right now even if we can't always be."

I hoped my sisters would be back soon to help me. I had no idea what the right move was, whether saying yes or no to her would do more damage in the long run, and I needed someone to bail me out.

"It would only be once, that's all. That's not a bad deal is it? Sex with no consequences afterward? Or are you really telling the truth when you say you're not interested in any of us even a little bit."

She knew better than that, she'd felt first-hand a few minutes ago what kind of effect my sisters could have on me if they decided to. I suspected she was offering me a way out if I really wanted it, a way to say no without coming right out and saying I didn't want her. She wouldn't take it well if I did though, it wasn't going to spare her feelings any.

"It's not that," I said. "But... I don't know Jill, I don't know what to think."

"That's okay, I know I just sprang it on you. It wasn't really fair. I don't mean for this to be hard on you."

She took my wrist and brought my hand up to her breast. I surprised myself probably more than her when it didn't even occur to me at first to jerk away. She felt... well, she felt like a girl is supposed to. I wasn't supposed to be touching her in inappropriate areas, but I suppose that didn't mean I wouldn't enjoy doing so.

"You can touch me if you want," Jill whispered. "Anywhere. I won't take it as a commitment or anything, but maybe it'll help you decide."

She let go of my arm but my hand stayed exactly where it was. It wasn't like a girl letting me feel her up out of nowhere was something that happened all that frequently.

"The girls will probably be back soon," I said, reminding myself as much as Jill. "Maybe we should talk later, in private. It might not-"

"I told them already," she interrupted.

"You did? But then...."

They knew what Jill was up to? That didn't make any sense.

"They agreed with me. You're a better option than me getting too desperate. It could lead to some really bad decisions. But if we're both okay with it, there's nothing wrong with it really. No one except the four of us would ever know."

"So if they knew, then what Angie was doing..." I said slowly as some pieces fell into place.

"She was trying to help I think. In her own bizarre way."

"Who knows, maybe she did."

Getting me horny was certainly not a bad idea if she was trying to get me to agree to sex.

I had to leave that thought as I heard the sounds of my sisters returning. I dropped my hand down beside me and away from Jill's chest out of sheer guilty reflex. Maybe they were okay with it, but that didn't mean I was comfortable with the idea yet.

"Are you two seriously still sitting there?" Angie demanded, as if she didn't know we had been talking. "You didn't even pick out a movie did you?"

"I'll get one," Kelly said, setting down the bowls she was carrying.

It looked like they brought popcorn and chips, not that I was particularly in the mood for snacks at that point.

"How about Pulp Fiction?" Kelly asked, after briefly scanning the options.

Angie agreed with her choice and Jill and me weren't paying enough attention to care that much. Plus it was something I wouldn't mind watching even if I wasn't so distracted.

After getting the movie started my sisters settled in on the mattress leaving Jill and me the couch to ourselves. We really weren't using that much of it though, since Jill didn't seem interested in getting off my lap and instead was now resting her head on the front of my shoulder.

I could get used to having her so close, that was the weird thing. One of the weird things anyway. If not for the pervasive sense that sex with her would be wrong in a vaguely defined way, there was not much else stopping me. There was still the idea that it might actually hurt her more than refusing would, but I was getting less and less confident about that being anything more than grasping at straws.

The thing was that I actually was really tempted to go along with Jill and see what happened. She had already told me she didn't mind if I touched her, and she'd even actively encouraged it. I could almost still feel her breast on my hand and there was nothing stopping me from groping her more if I wanted. Angie and Kelly were facing away from us and all I would have to do is move my hand if either of them turned around.

The more I thought about it the more I decided that I was really going to do it. I'd go slow at first and see what Jill's reaction was. If she stopped me at some point, well, the choice I had to make might take care of itself.

Moving as casually as I could I replaced my hand on Jill's breast where she had put it earlier. She gave absolutely no visible reaction and if I didn't know better I might almost think she hadn't noticed. I squeezed gently just to make sure she really had no objections and still I got no reaction.

My imagination started running wild with ideas of what I could do. I didn't intend to go too far, but that didn't mean I couldn't think about it. There was definite potential in having a girl who would let me touch her anywhere without so much as acknowledging it. I was getting ahead of myself though, all I'd really confirmed was that she didn't mind if I felt her boobs which she'd as much as said already.

I continued playing with her breasts for a bit, switching back and forth between them every now and then. I still got nothing in the way of a response except for a barely audible sigh at one point which I took to be a sign of enjoyment. Granted it wasn't loud enough that I could distinguish any emotion in it, but if she had actually been demonstrating annoyance then I assumed she would have stopped me.

When I felt brave enough I slipped my hand down under the bottom of Jill's shirt. Again, no reaction. I kept to the relatively innocent area of her tummy at first, slowly rubbing the soft skin in a more or less circular pattern. I worked my gradually up her body until I brushed against the bottom of her bra.

Despite everything, I half-expected her to stop me when I covered one of her bra cups with my palm. I still wasn't touching her breasts directly I suppose, but it was getting pretty close. It could be that she actually meant what she said and she really wouldn't mind anything I did.

Like many people, I wasn't designed to quit while I was ahead. Since I had encountered no resistance yet I decided to see what happened if I removed Jill's bra. It took a moment or two as I fumbled under her shirt, but soon I had it unclipped. It wouldn't fall away on its own, trapped as it was between her shirt and body, so I had to help it along.

Once I had pulled the bra free I wasn't really sure what to do with it. Angie and Kelly were still paying no attention to what we were doing, but I didn't want to leave anything obvious lying around in case one of them happened to look over their shoulder. For lack of any better ideas I buried under a pillow lying against the arm of the couch.

When I turned my attention back to Jill I found her looking at me. I still had one hand under her shirt and she took hold of the corresponding arm. For a second I thought I had managed to push too far and she was going to stop me now. She didn't though, she just gave me a little smile and pulled my arm closer to her instead of away.

My fingers landed on the soft, bare flesh of her breasts. She smiled wider and let go of my arm, having made the message clear.

Her head was tilted up toward me and her lips slightly parted. Without stopping to think about it I leaned down and kissed her. She didn't react passively to that and met me eagerly, kissing me back with force nearly equal to my own.

I couldn't help myself, I truly wanted her now. She was just so willing, so ready to do anything for me. I was her older cousin and I tried to be the responsible one when necessary, but I was still only human. I couldn't resist what she was offering and she might very well get what she wanted after all.

With my free hand, which had been left out for most of the activity, I grabbed Jill's butt. Her tits and ass were mine to do what I wanted with and I decided to take advantage of it. Her jeans were fairly tight on her, but with enough wiggle room that I could work my fingers under them. Before too long I had my hand pressed against her butt where her panties didn't cover.

I had abandoned any real pretense of restraint. I was too busy concentrating on other things like whether I could get Jill into my room without attracting attention. Being discreet was soon made a non-issue.

Caught up in what I was doing I pinched one of Jill's nipples a little too hard and she let out a noticeable gasp. I realized that my sisters could easily have heard it and as soon as I checked on them I could see that they had. They were both staring intently at us and there was no way they could misinterpret what we were doing. Jill blushed a little but didn't seem to mind too much, I suppose she must have known this was a possibility.

Then I saw Angie's hand was busy inside her pants, not to mention that both she and Kelly had shifted from where they were sitting before to be able to see us better. Shit, just how long had they been watching? How long had it been since I checked on them?

"Are you actually masturbating?" I asked for lack of anything better to say.

"I don't think you want to start an argument on who's being a bigger perv right now, dear brother," Angie shot back.

"Yeah, you're probably right," I conceded with a sigh.

"Don't worry Nick, we both said we were okay with this," Kelly said in a reassuring tone while glaring at her sister.

"What? I wasn't starting anything," Angie said. "I want them to keep going. It's kinda hot."

Kelly shook her head in disbelief at Angie's nonchalance toward the whole thing and I silently agreed with the sentiment. Our older sister had been taking the situation far too well, which wasn't a bad thing in some ways, but it made me suspicious of her motivations. I hoped it was simply an over-eager attempt at helping out Jill. Or maybe she really did think me and Jill together was hot, which raised its own set of questions.

"Do you want to go into the bedroom now?" I asked as I turned back to Jill. "Get some privacy."

"Only if you want to," she said. "I don't mind if they watch, they're my cousins too you know. I love all of you. Don't take this the wrong way, but I mainly singled you out because you're a guy."

"No, I get it," I said.

I was a little embarrassed about carrying on with my sisters there, Angie watching with fascination and Kelly with more of a wide-eyed wonder at what she was seeing. It helped that I understood now that we all shared something with each other, something that went beyond the typical family relationship. The girls seemed to have gotten it well before I did and I was only now catching up. Jill needed us, me specifically, and we were going to help her even if it meant stretching our comfort zones.

Or maybe that was bullshit and I was just getting to the point where I was too horny to care.

I unbuttoned the front of Jill's jeans having decided the time for subtlety was long past. I then slipped my fingers inside her panties to stroke her pussy, making her moan approvingly. There was a damp spot on her panties that I could feel where my knuckles brushed against them, and yet more of her juices were leaking out as I toyed with her.

"You ready?" I whispered into her ear.

"Uh-huh, I think so," she said.

I made Jill lie back on the couch and took the opportunity to slip out from underneath her. With her help I pulled her jeans down and tossed them aside, then crawled between her legs as she spread them for me.

Even while I repositioned myself and bent down to kiss her I could feel her fumbling with my pants. She got them down just far enough that she could get her hands on my cock. She played with it experimentally until I started humping back out of sheer instinct.

I lowered myself as Jill guided my cock to her pussy and as I continued thrusting I ran into her panties. It felt good and I just kept grinding against her while she moaned and wrapped her arms around my neck. I kissed her again and felt her fingers tangling in my hair.

We were very nearly fucking at this point. All that lay between us were Jill's increasingly damp panties and it wouldn't take much to get them out of the way. I was, however, reluctant to leave her even for the short amount of time it would take.

Jill was a little more clever and practical than I was in this instance. Instead of removing them completely, she simply pulled her panties to the side and all of a sudden my cock was rubbing against bare skin. Heavily lubricated bare skin.

I was already making more or less the right motions and, the female body being shaped the way it was, my cock naturally tried to slip inside her. I had to shorten my movements to keep from full penetration which left me teasing the entrance to Jill's pussy. She didn't put up with that for long and bucked her hips toward me, forcing the head of my cock inside her.

I came to a full stop for a second as the sensation of actually being inside my cousin hit me. Again her impatiently rocking hips attempted to make up for my lack of progress and I soon gave in and began working deeper into her needy pussy.

"Oh, fuck," Angie said from off to the side along with what I could only assume was the sound of her furiously fingering herself.

Even after the reminder that they were still there I didn't turn to check on my sisters since I wanted to focus entirely on Jill. Let them enjoy the show if they wanted, I was enjoying it more.

Soon I was getting about as deep as I could on every stroke. Jill let out a little whimper occasionally when one of my thrusts was bit harder, and her hips moved in synch with mine almost perfectly. Her breathing was ragged, as was my own, and with her mouth so close to my ear it drowned out most other sounds in the room. Sometimes she would bury her head in my shoulder for a few moments, then throw her head back while I took the opportunity to kiss her exposed neck.

I sensed when she came more than I heard or felt it. I couldn't put my finger on what exactly it was, only that something in the way she reacted made me certain of it. Something in the way she tensed up maybe.

Only when the sound of her breathing returned in large gasps did I realize she had been holding it. It could be that she was embarrassed about letting anyone know and had done all she could not make a sound. She might not have ever had anyone around when she'd had an orgasm before and now there were three other people in the room.

At that point I was getting more concerned about my own needs. That and not knowing whether it was okay to cum inside her or not.

"I'm getting close," I whispered.

"'Kay, it's fine whenever you're ready," Jill whispered back.

I took that as being permission, or something close enough to it anyway. Again it was that immediate acceptance of what I wanted that I unfortunately didn't the metal capacity to analyze just at that moment; I was far too close to orgasm.

With a groan of pleasure I let my first shot of cum spray into Jill's pussy, quickly followed by another and another. When I finally finished I rolled off of Jill toward the back of the couch, nearly pushing her on to the floor. She refused to let go of me though, and once we were settled we shared the length of the couch.

"Well that was fun," Angie said, startling me slightly. "We should do it again sometime."

Angie was stretched out on her back now and looking extremely satisfied with herself. Kelly was sitting with her knees pulled up to her chest and still had a look of not quite believing what she'd just seen.

"You know you can get porn on the internet right?" I said. "For free even."

"Enh, it's not as interesting," Angie said with a shrug. "Hey, maybe you guys could do that again only we'd film it this time. It wouldn't be the same but it might still work for me."

Kelly landed a solid punch on her sister's shoulder before I could even start to reply to that.

"Thank you," I said.

Angie pouted as she rubbed her shoulder but didn't seem the least bit apologetic. I kind of suspected she would get to see more like she wanted to anyway. Despite what Jill had told me I couldn't see this only happening once. It would be up to her of course, and maybe she had all she wanted now. I'd just have to wait and see.The first the thing I felt that morning was a hand on my shoulder shaking me vigourously. I didn't immediately know who it was, only that I wasn't ready to get up yet.

"Go 'way," I mumbled.

There was someone in bed with me, Jill I assumed without opening my eyes. After having sex yesterday I hadn't been all that surprised when she followed me to bed. All we had done was sleep though.

"Come on Nick, you guys have to get up now," Kelly said.

I repressed a sigh at my little sister's insistent tone.

"Don't wanna," I protested eloquently. "Go bug Angie."

"She's already up. Everyone else is except you two. You're just lucky I'm the one who got here first, Angie was threatening to get her camera."

That wasn't necessarily a joke either. As much as I could probably trust my older sister not to do anything too stupid with incriminating pictures of Jill and me, I really didn't want to take that chance.

"Alright, alright," I said. "We're coming."

"Good, breakfast is pretty much ready and someone else is going to be checking on you soon. I'm going to go let them know you're coming," Kelly said.

"Hey Kelly," I said, stopping her on the way out of the room. "Thanks."

"You're welcome."

She gave me a little smile before turning back toward the stairs. Once my brain started working I realized just how lucky I was that she was on the ball. I should have thought things through better, or at all, instead of going to bed with my cousin like nothing could possibly happen. Just because it was unlikely any of our parents would have come downstairs to wake us up didn't mean I should have ignored the possibility. I didn't really know for certain that they would react badly, but I didn't need to take that risk. Especially if what went on between me and Jill never happened again.

I turned my attention to the sleeping form of my younger cousin beside me. Only just eighteen and the youngest of all of us, she had definitely done some growing up in the past couple years. She looked so beautiful lying there unmoving except for her gentle breathing, and that was something I wasn't afraid to admit to her anymore. For a long time any visible interest in my sisters or cousin had resulted mainly in teasing, but Jill had changed that.

I pulled back the covers down to our waists to reveal more of her form. She had stripped down to her panties last night, leaving herself almost naked. Even just looking at her now I could feel my cock stiffening a little at the sight.

We didn't have all that much time I knew, but I couldn't help myself. I gave one of her breasts a gentle squeeze then traced around her nipple with my fingertip. It was amazing how easily I had gotten used to the idea of touching her like that.

"Jill," I whispered, secretly hoping she wouldn't answer right away and give me a little more time.

"Yes?" she said right away with no hint of sleepiness.

"You were awake the whole time," I accused her.

"Mmm, maybe," she giggled. "I didn't want to get up though. Feels so nice here with you."

She opened her eyes and rolled over fully onto her back. I still had my hand on her breast and she made no effort to remove it.

"Don't worry though," she said. "I'm not going to get all clingy on you or anything. This can be the end of it if you want."

I'd been waiting for her to say something like that. Not that I'd had all that much time to think about the future, but I didn't need that much.

"I don't mind if you want to be a little clingy," I said.

They weren't the words I really wanted to say, I didn't even know what those words would be. Jill knew I meant though and her face lit up as the impact hit her. Whatever the original plan had been, I didn't want that morning to be the end. She clearly hadn't wanted that either even if she had been prepared for that scenario.

"Good," she said simply.

Jill pulled me down so she could kiss me. I let her for a moment, then reluctantly sat up.

"We really need to get moving," I said.

"Yeah, I know," she sighed.

Dressing was kind of confusing as pieces of clothing were scattered all over. I had my bag of spare clothing I'd brought with me right by the bed which helped some. Jill took one of my shirts and grabbed her jeans from beside the couch where we'd left them last night.

Together we made our way upstairs where the rest of the family was waiting. Since we were, in theory, celebrating Jill's birthday I guess they felt it wouldn't be right to start breakfast without her. Probably she would actually have preferred if they hadn't worried about that just this once.

****

I was the first to leave the breakfast table, arousing no suspicion since I tended to eat fast anyway. Retreating to the basement I sat down heavily on the couch and spent a couple minutes staring off into space.

Before long Jill came down the stairs and sprawled across my lap as though I wasn't even there. My shirt was too big on her and came halfway down her butt when she stood. I pushed it up a little and rested my palm on her tummy just to feel that contact between us.

"I'm glad you don't regret what we did," she said softly.

"Me too. I worried that I might at the time though. Having sex with my baby cousin seemed like it could have been a bad idea, but I really don't think it was. Not anymore."

"So you think we'll do it more?"

"I hope so."

That seemed to satisfy her and she relaxed as we listened to the sounds of activity upstairs.

Once they finished eating Angie and Kelly joined us, but didn't immediately settle in. Kelly had sort of a weird look on her face for a second when she looked at me, then it was gone. I wasn't entirely certain I hadn't imagined it.

"You guys wanna go swimming?" Angie asked. "Me and Kelly are going to hit the pool."

I glanced at Jill who just gave me a shrug, leaving it up to me.

"Yeah okay, why not," I said.

It was a little early in the year for swimming, or it usually would be. It had actually been pretty warm the past week or so and would probably make for decent swimming weather. Even given the outside temperatures I didn't expect the girls to all bring swimsuits. I was wrong though.

Maybe it was the sort of thing they all worked out ahead of time, or perhaps it was coincidence. Either way each of them apparently had a bikini with them. It wasn't such a bad deal I guess since I got to watch them, I was just hoping our parents wouldn't decide to hang around. I knew I would have a hard time behaving myself around Jill if she was wearing so little, and my sisters to a lesser extent.

I followed the girls out to the pool in the backyard after putting on an old pair of shorts I brought along. Unlike them it was complete luck that I had anything suitable; my packing methods were rarely anything more complicated than throwing some stuff in my bag and hoping it worked out.

Watching my cousin dive in to the water was a fascinating experience now that I didn't have any real reservations about checking her out. My sisters also looked quite good in what was little more than soaked underwear. I wasn't quite so open about ogling them, but I still felt more free about it than I ever had before. Sex with Jill had really changed some things for me mentally, more than I had realized at first and yet not as much as I had feared it might.

For the first few minutes we all just kind of swam around getting used to the water, which was a little bit on the cold side. It wasn't too bad though.

Jill and I sort of drifted together toward the side of the pool after the initial novelty wore off. Her breasts were just above the waterline and her top was clinging in a way that made it very hard to look anywhere else.

"Like my suit?" she asked.

As if she couldn't guess.

"Yeah, it looks nice on you," I said.

"Does it really look nice, or do you just like it 'cause it doesn't cover very much?"

"Both," I replied without hesitation.

"I can live with that."

I reached out to adjust the material of her top where it was a little crooked, more to cop a feel then because it bothered me.

"You have to be good," Jill whispered, not looking nearly as bothered as she tried to sound. "We're not exactly in a very private area here."

"I could always drag you back down to the basement," I said.

"And I'd be okay with that except...." She glanced toward the house. "We have to pretend things are normal, at least while our parents are so close by. I know they're planning on having birthday cake for me and maybe other stuff at some point. They think I didn't see, but they're not that good at surprises."

I was noticing more and more that she had a kind of nervousness when she talked with me. It was only subtle, barely noticeable, but it was there. It was like she kept expecting something bad to happen and wasn't quite sure where it was going to come from.

"Hey come on, I know that," I said. "I'm not going to let anything happen. It's just that after last night, I can't help wanting to be close to you."

"You really mean that, don't you." Jill tilted her head curiously as she spoke, as though only just realizing it.

"I do, I care about you now maybe more than I ever did before. I would have been happy just staying in bed with you all day if we could get away with it. And we don't really have that much time together."

Neither of us could know what would happen after the weekend was over and we had to go our separate ways again. Maybe Jill would find someone else and part of me hoped she would, she deserved it. Another part of me remembered just how good it felt to hold her and didn't want to give that up. What we were going to do was something that would have to worked out over time, there was no point worrying about it too much right now. Except maybe that I should take advantage of what time we had.

I reached out underwater to place my hand on Jill's leg, maneuvering to the inside of her thigh. She gave me a look immediately that told me I wasn't behaving the way we'd just established I should. She did not, however, make any move to stop me.

"Thought you were going to be good," she said.

"I said I wouldn't let anything happen to you," I corrected, "and I plan on sticking to that. You can't expect me to go straight back to platonic mode though can you? No one can see what we're doing."

Well, Angie or Kelly could if they came near enough, but no one inside the house would notice anything more than Jill and me talking to each other.

"I guess I did say you could touch me anywhere you wanted didn't I?" she said.

"You said something like that yes."

I continued stroking her smooth, wet skin until she stopped looking so anxious about where we were. I didn't want her to be uncomfortable, I wanted her to enjoy herself.

Jill's bottoms were tied together at each hip by strings which made the next step a little easier. Her eyes opened wide as I gently tugged on one of the knots until it came free. I tried to smile reassuringly at her since I wasn't going to remove them completely, just give myself better access.

With her bottoms now hanging only half-attached there was nothing in the way of my fingers getting to her pussy. I rubbed up and down her slit at first, just toying with her for a little while. With no previous experience in the matter I wasn't really sure how lubrication worked underwater and figured it was better to take it slow. It was hard to tell if she was actually wet when she was so, well, wet.

Once I judged it to have been long enough I tentatively pushed one finger against her entrance. It went in without difficulty and encouraged me to keep going. When it was halfway in I pulled back out most of the way and added a second finger.

Jill had given up any form of protest and stayed more or less still with her eyelids partly shut. Occasionally she would breath a little harder at something I did, but mostly she remained silent.

I really shouldn't have been surprised when my sisters wandered over to where we were. If anything it was more surprising they'd left us alone for so long.

"If you guys were just going to stand around and talk you might as well have stayed inside," Angie said. Then she grinned as she saw where my hand was. "Or maybe you're not just talking."

"What do you... oh," Kelly said, a little slower on the uptake.

Again the was a flash of... something across my younger sister's face as she realized what I was doing. I couldn't tell exactly what emotion it might be, but it didn't seem good. As quick as it came it was gone and she looked more or less normal again.

"You'd think you could keep your hands off her for an hour or two," Angie said.

"Turns out I can't," I said.

Jill was keeping out of the conversation, but she had turned when Angie and Kelly approached making it harder for me to keep my fingers moving inside her. I slowly managed to guide her into a better position by applying gentle pressure with my hand. Once I had her where I wanted her I sped up the movement of my fingers significantly, causing her to moan softly.

"I think I'm gonna head in," Kelly mumbled.

She swam away without saying anything else, but I was becoming convinced there was something she didn't like about the way Jill and I were acting. She had said she was okay with it though didn't she?

I watched Kelly go as I absentmindedly kept finger-fucking my cousin. She grabbed a towel from a pile by the side of the pool and dried off a little before walking back into the house.

Angie was watching as well and had a thoughtful expression on her face. I was about to ask what she was thinking about when Jill distracted me by grabbing my arm tightly. It appeared that she was having another of her bizarre, silent orgasms as once again she made absolutely no noise. The way her fingernails dug into my skin along with her facial expression made me pretty confident that was what was happening anyway.

I withdrew my hand as Jill finished cumming and waited for some kind of comment from Angie. My sister was still looking lost in thought however, it must have been something important.

"Nick, I think you need to go talk to Kelly," Angie said eventually.

"It's about me and Jill isn't it?" I said. "There's something that's bothering her."

"I think so yes."

"Okay, well what is it? Because I thought she was fine with the idea."

"Just go talk to her. You'll work it out."

"How about you do it since you have a better idea what's going on?"

"It'd be better if it was you," Jill cut in.

I turned to her and found that she too was staring after where Kelly had disappeared inside. Apparently both she and Angie were seeing something that I hadn't quite grasped yet.

"I'll make this simpler," Angie said. "Go find your sister or I'll find something heavy and beat you over the head with it."

"Fine," I said. "But if I make things worse it's your fault.

I hopped out of the pool and grabbed a towel from the same pile Kelly had before following her indoors. I didn't know why Angie wouldn't just tell me what was going on. How could this possibly go any better if I was fumbling around blindly in the dark, so to speak. Oh well, all I could do was try.

I guessed that Kelly probably went to the basement and it turned out I was right. She was just coming out of the small bathroom with her towel wrapped around her as I made it to the bottom of the stairs.

"Uh, hey," I said, not knowing how to start the conversation.

"Angie send you after me?" she asked with a faint smile.

"Yeah," I replied honestly. "But even I clued in that there's something going on here. I just don't know what."

Kelly studied me for a moment, then nodded toward the bathroom.

"I tossed my suit in the shower for now, at least it won't get anything wet until I find somewhere better to put it," she said.

I took that as a suggestion, and not a bad one either. I was already dripping a little on the floor. While Kelly gave me some privacy I pulled off my soggy shorts and tossed them next to her bikini on the floor of the shower. Then I wrapped my towel around my waist and stepped back out into the main room.

Kelly had a bundle of clothing in her arms as I came out and seemed to be waiting for her turn again. I moved aside and leaned against the wall as she reentered the bathroom to get changed. She didn't close the door, I guess she wasn't worried about me peeking.

"So what was your plan?" Kelly asked.

"What?"

"You came to talk to me didn't you? What were you planning on saying?"

"I... have no idea," I said. "Angie wouldn't tell me what the problem was even though I'm pretty sure she knew."

"Probably thinks I'm jealous."

I stayed silent, hoping for more to work with. And I got it.

"She's right too," Kelly said.

"You're jealous? But you're...."

"I'm your sister, I know. Can't help it. It wasn't so bad when it was only going to be a one time thing, but now it's more than that."

I wished I could see her face to face while we were speaking, it might have made things easier. Since I didn't know if she was done changing yet or not I stayed where I was.

"Are you saying you want to do the same stuff Jill and me are doing?" I asked carefully.

"I'm saying I hate that she's got something with you that I can't have. I'm saying it's not fair."

"Maybe we could work something out."

"Like what? You're going to have sex with me too? You're going to finger me when you think you can get away with it? 'Cause I don't think you want to do any of that with your baby sister."

"Jill's like a sister to me, you know that," I said firmly. "It's not that different."

"Prove it."

Kelly reappeared in the bathroom doorway without her towel. Or any clothes.

"Thought you were getting dressed," I mumbled.

"I was going to, changed my mind," she said.

My little sister stood there completely naked and not at all as shy as I would have expected under the circumstances. Maybe the point she was trying to prove took precedence over her other emotions.

I may as well have been staring down Medusa. I couldn't seem to move or think properly and Kelly gave no indication of backing off. She was right, it wasn't the same as with Jill. In the end it was the look she gave me like "I told you so" that kicked me into action.

Forcing my legs to move I backed her up against the wall and pinned her on either side with my arms. Then I kissed her, not too hard but enough to convey what I needed to. After a moment she kissed me back and pressed against me a little until I pulled back.

"Didn't think you'd actually do anything," Kelly said softly.

"Jill changed a lot of things for me last night," I said.

"Watching you two, it changed things for me too. I couldn't stop thinking about it. I even, you know, masturbated a couple times while Angie was sleeping right there beside me."

My cock twitched at the mental image of my little sister getting herself off, helped along by her being naked in front of me. With only a towel on it was going to pretty obvious how turned on I was getting pretty soon.

"And then you got jealous when you found out that wasn't the end of it," I finished for her.

"Yeah, that's about right."

"So how do we fix it?"

Kelly shrugged. "I don't know. I figured we'd probably talk about it at some point, but you were supposed to tell me that you're my brother and nothing can happen between us."

I shook my head. "I think we're past knee-jerk reactions here."

"Yeah, I guess we are. What if we just... what if we did it? Had sex I mean," Kelly said. "That could be okay right?"

"I think so," I said.

There was the off-chance that doing so would piss Jill off, but she must have known what she was sending me to. I hoped she did anyway. It was kind of weird that my primary concern with this scenario had nothing to do with Kelly being my sister.We stared at each other for a moment, neither of us moving or knowing exactly what to do. Then she gave me a crooked smile.

"This is gonna be awkward isn't it?"

"Maybe if we get horny enough that'll go away," I said, recalling that it seemed to have worked when Jill tried it on me.

"'Kay," Kelly giggled.

Without giving me a chance to react she tugged my towel loose and let it fall to the floor. Her hand was immediately on my semi-hard cock, stroking it gently. Her fingers felt so good on me and without fully intending to I leaned toward her until my cock brushed against her. She released me as I started to grind on her, my erection sliding over her waist and the bottom of her tummy.

"Mmm, that feels nice," Kelly breathed. "Feels sexy."

"So do you," I said. "My sexy little sister."

She had been watching my cock play over her skin, but abruptly she looked back up at me.

"Are you really going to put it in me?" she asked.

"If you want me to."

"I do. Maybe we should lie down first though."

"Mm-hm."

I was leaving small trails of pre-cum where the head of my cock touched her. I could have just stood there rubbing against her all day and she didn't seem like she would mind that too much. Eventually I managed to pull away long enough to walk the few steps over to the mattress still lying in front of the couch. The bed would have been better in some ways, but the mattress was closer.

I ended up on my back with Kelly climbing on top of me. She was eager, far more so than I had anticipated. She kept darting in for quick kisses while simultaneously maneuvering herself so that my cock was trapped between her legs. I loved the feeling of her pussy against my erection, and she kept wiggling around so that I couldn't even get a moment to process it all.

Suddenly she sat up, more or less, and stopped moving. Her breasts hung over me so temptingly bare and inviting and I traced my fingers up her stomach to just below them, then back again. When she continued watching me I did finally reach up to play with them, feeling each one thoroughly and exploring them as though I was trying to memorize their dimensions.

"I'm gonna do it now," Kelly said.

"Are you sure you're ready?"

"I do have a little experience at this you know," she said, giving me an almost patronizing look.

"How much experience?" I asked before I could stop myself.

"Ah ah," she chided me. "That's none of your business."

"I know, I'm sorry."

"But I will tell you I've never done anything with someone I didn't want to, and I don't plan on that changing."

That could have been an attempt at confirming that she really wanted this, or maybe she was just trying to silence my instinctive protectiveness for her. Maybe both come to think of it.

As she said she would, Kelly positioned herself above my hips and guided herself onto my cock. My little sister was way more aggressive than I ever would have thought, but then I had never put too much thought into this particular aspect of her personality.

"You think I'm going too fast, don't you?" she said, pausing just before we made contact.

I shook my head. "Not too fast, but definitely faster than I expected."

"Can't help it. We're being so bad, I'm so turned on just thinking about this."

"We are being bad, aren't we," I mused.

"Uh-huh, it's like you forgot already that I'm your sister."

"I'll never forget that, but I won't ever forget you standing naked in front of that first time either. You look really good with nothing on."

I made her blush a little and, maybe on purpose, she dropped her body enough that I felt her pussy barely touch the tip of my cock. It took real willpower not to just pull her down on me and force myself inside her.

"Do it," I said.

Agonizingly slowly, Kelly let gravity take over and her pussy lips parted on either side of my cock. Once the head was in she stopped for a second, then continued downward before pulling up again. She worked her way onto my shaft with these small up and down movements which gradually gave way to a sort of rocking motion.

I did my best not to interfere and contented myself with letting my hands wander across her legs, tummy, breasts, and anywhere else I could reach. Her skin was so smooth and wonderful, it seemed incredible that I had never noticed it before. Not in the same way I was now.

Kelly leaned over when she had me almost completely inside her and kissed me deeply. I kissed her back, extending my tongue tentatively to see what she would do. In response she opened her lips enough to let her own tongue out and they met in the middle briefly before she straightened up again.

"We're really doing this," she said, as if only just realizing it.

"Yeah, we are."

My hips had started moving all on their own and I was unable to stop them. Kelly was rocking faster on top of me and I grabbed her waist to help keep her steady. All too soon I felt the familiar sensation of impending orgasm and there was nothing I could do to hold it back.

"I'm gonna cum soon," I said.

Kelly didn't respond right away, but then reluctantly slowed down.

"I'd let you do it inside me if I could," she apologized. "I just can't take that risk right now."

"That's okay."

I still had enough sense to know getting her pregnant wouldn't be good, although only just barely.

She climbed off me and maneuvered her upper body between my legs, taking hold of my cock in her hand. Her other hand went to her pussy as she masturbated frantically while jerking me off.

It didn't take long for her to get me off and soon I was cumming hard enough that the first shot hit her directly above her left breast. She squealed as she felt that contact but didn't let go until I was done. A moment later she collapsed beside me with her hand firmly attached to her clit and a long, low moan escaping from her lips.

We lay together for a minute or two recovering from near-simultaneous orgasms before Kelly rolled on her side to face me.

"I've been thinking maybe I should go on the pill, just in case," she said. "Now I have a reason so maybe it'll actually happen."

"I could be okay with that," I said.

"Thought you would be."

She moved a little closer and rested her head on my shoulder. It probably would have been smart to get dressed right away instead of lying around naked together, but I didn't really want to get up.

Then someone came bounding down the stairs sending me into a panic. I sat up and was whipping my head around looking for clothes or something to hide under before cluing in that at the pace they were moving it had to be either Jill or Angie. Either of them wouldn't be so bad relatively speaking.

"Fuck's sake, you really did it right in the middle of the floor? I thought you were at least clever enough to go to the bedroom," Angie said, taking in the scene before her.

"Yes thanks," I said. "I'll try to keep that in mind for next time."

"I'm sure you will. Anyway, time to get dressed again. Cake and presents and silly hats coming up."

"What, right now?" I groaned. "They couldn't have waited an hour or two."

"I mean since when does your cousin's birthday take precedence over fucking your sister," Angie said in an overly innocent tone of voice. "Or wait, did you not schedule this? Because you have to let people know or they just can't make time for you."

Kelly stood up, derailing my sarcastic reply before it began. She pretended to be oblivious to the effect her body had on me, and even Angie to an extent, but I saw her peeking to check my reaction. Her pile of clothes was still in the bathroom where she'd left them earlier and she purposefully started dressing in the doorway where we could see her. It's really hard to fight properly when there's naked girl in your line of sight.

"Anyway, see you two up there in a couple minutes," Angie called over her shoulder as she hopped back up the stairs.

Kelly finished dressing quickly and came back over to where me where I'd only managed to stand up. She gave me a quick kiss, but pulled away when I tried to wrap my arms around her.

"Later," she promised. "We need to go pretend things are normal for a while."

"That's going to be the major downside isn't it," I said. "Pretending when there's anyone around who isn't you, Jill, or Angie."

"We can make it worth your while," she said with a wink.

I knew she was right. Whatever I would have to put up with for her and Jill, it was worth it.I didn't think I'd ever woken up to a more enjoyable feeling. Actually, I knew I hadn't. On one side of me was my cousin Jill, on the other was my younger sister Kelly. All three of us were completely naked and covered only by the blanket we shared. The girls were snuggled up close to me and the their warm bodies were more than enough to keep me as stationary as possible so as not to wake them.

Despite any niggling worries I'd had about how the two of them would take to me having sex with both of them, it turned out not to be a problem. They'd even been comfortable enough with the whole thing that we'd ended up all sleeping together.

Because there were three of us we'd taken the mattress on the floor of the main room in the basement instead of my bed. It wasn't that it offered more space, both options left us a bit crowded, but more that if one of us did fall out for some reason there was only an inch or two to go.

After a few minutes I became aware of my sister slowly waking up beside me. She shifted around at first and pushed the blanket away from her, then stretched out and rolled over until she was halfway on top of me.

"Good morning," I said.

"Mmm, morning," Kelly responded.

"You sleep okay?"

"Yes. It figures, the one night I wouldn't mind having a little trouble drifting off and I sleep like a baby."

She kissed me softly, using the opportunity to swing her leg over mine and climb fully on top of me. My cock started swelling to life as she straddled me pressed her pussy firmly against my crotch.

"And they say guys are constantly horny," I murmured.

"It's not constantly," she protested. "It's only 'cause I woke up naked next to you. It wouldn't be fair to expect me not to get a little excited."

"I'm only teasing, and I like it when you're horny anyway."

Before long Kelly had something to really grind against as my erection grew to full strength. I knew she was getting as turned on as I was since her pussy juices were leaking across the length of my cock and lubricating it before I was even inside her.

She was definitely more aggressive than Jill, more certain of what she wanted. Rather than detracting from the image of my little sister, it actually added to her appeal. Part of her energy apparently came from me being her brother, and I loved knowing that I was the only one who could ever produce those particular feelings in her.

"You think we could have sex before Jill wakes up?" Kelly asked. "Get away with it without her even knowing."

I glanced at our sleeping cousin who appeared no more awake than she had been a few minutes ago.

"Guess we could find out," I said.

Kelly was already adjusting her position before I finished speaking. She grabbed my cock and held it steady while she lowered herself onto it, her wet pussy eagerly accepting me inside.

"Ooh, I love that feeling," Kelly moaned.

"What, sex?"

"Sex with you," she clarified. "Having my big brother in me, it's so, I don't know, bad. Naughty. Something like that. I can't think of the right word."

"I know what you mean."

As she worked her way down my shaft she wiggled around and sent all kinds of different sensations through me. The mattress even started to bounce a little beneath us as she built up a fairly constant rhythm. It was probably that movement that finally woke Jill up.

"Aw, you guys didn't even wait for me to wake up," Jill said, followed by a small yawn.

"We couldn't wait forever sleepyhead," Kelly teased.

Kelly still rocked gently on top of me, though she had slowed down when Jill spoke.

"Did you even wait two minutes?" Jill asked.

"Probably not quite that long," I said.

Jill kicked off the blanket that had gotten piled on her somewhat when Kelly climbed on top of me. It struck me once again just how amazing my life was that morning as her naked form was revealed. I kept flipping between wishing I had a way to record everything and wondering how I could possibly ever forget any of it.

"Maybe I should just leave you two alone then," Jill said, moving to get up.

"Ah ah, stay," Kelly said as though instructing a disobedient puppy. "I've got a better idea."

"What's that?" Jill asked.

"Have you ever tried any... oral sex?"

"You mean like a blowjob?" Jill frowned in confusion.

"Kinda, except the other way around."

It even took me a moment to catch what my sister was suggesting, Jill was a little slower. Once she did she looked from me back to Kelly.

"You mean like right now? While you're..." she squeaked.

"Yep," Kelly said with a wide grin. "Come on, may as well try it while I'm here to make sure he does it right."

Ignoring the jab at my sexual abilities wasn't all that hard since I knew for a fact Kelly had no idea how good I might or might not be.

Somewhat hesitantly, but with Kelly tugging on her arm until she gave in, Jill positioned herself over my face with one knee on each side of my head. She had to shift forward a little once she started lowering her body toward me to get us lined up properly, but we soon got that sorted out. Soon enough her pussy was hovering just above me.

I placed my hands on Jill's hips to help keep her steady, then carefully extended my tongue. My cousin was still a little too far away to reach her properly, but I managed to flick my tongue across her pussy and make her jump slightly at the sudden contact.

"Down a little more," I said.

"Okay, I just don't want to, you know, squish you or anything," Jill said.

"Don't worry, I'm pretty sure I can take it."

I guided her as best I could with gentle pressure on her hips until she was very nearly sitting on me. She was close enough now that I could lick her pussy easily and I proceeded to do just that.

What I quickly discovered was that Jill was facing the wrong way. Or, more to the point, any girl I'd tried this on before had been facing the other way relative to me. It didn't change the basic premise of what I was doing, but it did mean a couple differences. In particular her clit was down toward my chin rather than being closer to my nose, which was a little disorienting. I hoped I could still do a decent job at least partly because I didn't want Kelly to think that I actually did need her help.

As I worked on Jill's pussy, Kelly started moving on me again. She had stopped while we were getting Jill settled and the feeling of being inside my sister had almost become a background sensation to me. I had remained hard through that interval and she could immediately continue where she left off.

For several minutes my focus was solely on those two parts of my body, my tongue and cock, and the two pussies attached to them. It didn't even occur to me right away that I was having sex with two girls at the same time, something I'd never done before. And that the two girls in question were my sister and cousin? I absolutely would not have predicted this situation even a few days ago.

However strange the situation might look even to myself in the recent past, I was loving it. Kelly kept rocking on top of me while I buried my tongue in Jill's pussy and I could hear the occasional moan from above me. Knowing that they were enjoying it as much as I was just made the experience even better for me.

It turned out I really wasn't doing such a bad job on Jill since she was the first of us to cum. It was another one of her silent orgasms that I was getting familiar with at this point. If not for her legs tensing up on either side of my head and a small gush of girl-cum flooding my mouth I might not have even noticed until she abruptly rose off me and sat down heavily on the mattress beside my head.

"That was pretty hot to watch," Kelly said. "Think I'm gonna cum soon too."

She leaned forward and braced herself on her arms now that she had the room to do so and used the stability to fuck me harder. I reached up to cup her breasts in my palms and play with her nipples, giving her a little bit of extra stimulation to get her over the edge.

Kelly buried her face in my chest as she came, purposefully muffling any sounds she made. I stroked her hair through the whole thing and while she recovered. Finally she straightened up and, disappointingly, climbed off me.

"You're close right?" she asked almost as an afterthought.

"Yeah, kinda," I said.

"Good. Jill, come over here," she said, beckoning to our cousin.

I assumed Kelly was going to let Jill finish me off, or something like that. Instead Kelly grabbed my cock and started jerking me off without seeming to have any intention of Jill taking over. The two of them whispered conspiratorially together and I heard a couple small giggles coming from them.

"I'm coming," I warned them once I felt the familiar sensation inside me.

The two girls leaned over me and Kelly actually aimed the first shot at Jill, catching her across her cheek with my cum. The rest of my semen landed mostly on their breasts as they pressed together directly above me.

It was unbelievably sexy to see them both with my cum sprayed across their breasts and I felt like my erection wouldn't even begin to soften if I kept staring at them. Then Kelly moved toward Jill and licked at her cheek, cleaning her off in an unnecessarily provocative way.

"Oh god, cut it out. That's not even fair," I said. "I'm never going to want to get out of bed at this rate."

"What do you mean?" Kelly asked in a fake, but not unconvincing, tone of innocence.

As though it was perfectly normal Kelly turned back to Jill and kissed her softly. Jill looked a little embarrassed but returned the display of affection, getting into it more as it went on. All at once they couldn't keep it up any longer and collapsed together in a fit of giggling.

"Very amusing," I said.

"It was kinda," Kelly said. "It's amazing how little it takes to fascinate you."

I took that as a good excuse to get up. The girls immediately moved into the middle of the none-too-big mattress, wrapped in each other's arms. I couldn't help stopping to watch them for a moment and had to force myself to move on before I stood there all day. Two naked girls cuddling together was better than most anything I could think of for holding my attention.

My older sister Angie seemed to still be asleep as I entered my bedroom. She'd chosen to take my bed last night since I wasn't using it. I moved quietly through the room trying not to wake her while I gathered my clothes. Despite my efforts I heard the unmistakable sounds of movement from her direction, and when I turned toward her she was looking back at me.

"You guys are kinda noisy for so early in the day," she said.

"Sorry, Kelly jumped me. Wasn't anything I could do," I said as I struggled into a pair of pants.

"Yeah right, more like you didn't want to do anything to stop her."

"That too."

"Oh well, gives my imagination something to do anyway."

I noticed that while one of Angie's arms was in plain sight, the other was buried under her blanket and there were signs of movement around her waist-area.

"My imagination's pretty good sometimes," Angie said, following my gaze.

I shook my head. "Every now and then I get reminded just how weird this all is. I don't think I ever saw you masturbating before this weekend, now it's not even a big deal."

"Enjoy it Nick, you have something good going on that a lot of people don't ever come close to. And I don't mean because it's your sister and cousin you're with."

"I know."

Even with occasional moments of weirdness, I didn't regret anything that had happened this weekend. I was happy, Jill was happy, Kelly was happy, and Angie got to perv on us. It seemed like a good deal all round.

I sat down on the bed by Angie's legs as she continued getting herself off. It wasn't a frantic, desperate thing for her, but just a calm and inevitable process. She didn't seem to mind me watching her either, if she did she could have just stopped or asked me to leave.

"You really get off thinking about us?" I said.

"What can I say, I'm a little fucked up. You of all people should already know that."

"Aren't we all," I muttered.

"Could be. Anyway, what are you doing in here when you get be out playing with Kelly and Jill?"

"Those two are gonna drive me crazy. There's no way we'd ever get dressed if I stayed with them and in theory we still want this to be kind of a secret."

Angie raised an eyebrow at me. "You think you're safer in here?"

"Well, yeah. I guess I do for right now."

I should have known better. All I had done was goad her into action.

With an exaggerated sigh Angie sat up, letting the blanket fall away from her chest. She was topless underneath the covers and her breasts were left completely exposed to me. After pausing long enough to make sure she had my attention she swung her legs off the bed on the opposite side from me and stood up.

My older sister was wearing nothing except for a pair of panties that weren't doing much to cover her butt. She bent over slowly and took far longer than necessary to pick up her shirt before putting it on. It came down only far enough to not quite reach the top of her panties and left a slight gap of exposed skin. She didn't seem to mind that her legs were still bare.

"You shouldn't ever think you're safe around me, dear brother," she said.

"I should have learned that by now," I agreed.

Angie left the room without dressing any further, leaving me alone with my thoughts. I couldn't help feeling like I needed to go after her for some reason. She hadn't been upset or anything, so it's not like I had to apologize. Maybe it was just a reaction to seeing her very close to naked a moment ago.

Whatever the case I finished dressing and made my way back to the main room where Kelly and Jill were still curled up together.

"You going to come join us?" Kelly asked.

"I'm afraid if I do then I'll never get up again," I said.

"We'd have to eventually," Jill mumbled.

Kelly had Jill cradled in her arms and was stroking her hair with a loving, almost motherly, expression on her face. It was so hard to tell that they were only a month apart in age just then, Kelly seemed like she must be older than that. She had certainly been acting as the more experienced of the two the past couple days.

"You talk with Angie?" Kelly asked after a moment.

"A little."

"You gonna have sex with her too?"

She asked the question so casually it was hard to believe I'd heard correctly.

"Uh, that wasn't what I got out of the conversation," I said. "Unless you know something I don't."

"Not really, but I think it would be good. Then all four of us would be doing it. It'd be better that way."

"Okay, even ignoring most of the objections I could raise to that, I've seen no real indication that she wants to. What am I supposed to do, just ask her if she wants to fuck?" I said, deliberately using the harsher language to try and make my point.

"Yes," Kelly said simply.

I wasn't convinced, but I was having difficulty forming a coherent argument. It didn't seem like my position should have been particularly hard to defend. At least Jill wasn't openly siding with Kelly, but she wasn't helping me out either.

"Angie wasn't wearing much when she came through here," Kelly said. "Did she let you see her naked?"

"Kinda. Almost," I admitted.

"Has she ever done that before?"

No, she hadn't. Not on purpose. Maybe Kelly was actually on to something. I was pretty sure it still wasn't as simple as she made it sound though.

"Fine, I'll see what she says all right?"

Kelly stayed quiet, which I took as being agreement from her.

I took my time walking upstairs and working out what I was going to say. I had no idea how I was going to start this conversation with Angie, maybe I should just bring her back down and let Kelly explain it.

Eventually I located my older sister out on the back deck leaning against the railing and staring off at the distance. She was still wearing only her shirt and panties, seemingly oblivious to anyone who might see her.

"You look good in those," I said, coming up behind her.

"Such a perv," Angie said, rolling her eyes. "But so am I, so maybe I shouldn't complain."

"You could have put pants on," I pointed out.

"I could have. I don't think you really want me to though, not if I know you half as well as I think." She smirked. "Unless you're worried about one of the parents seeing me. You think they'd suspect something just because I'm wandering around in my underwear?"

"Probably not."

"At worst I'll get told to go get dressed and that'll be the end of it. You staring at my ass on the other hand, that might attract some attention."

"It's a nice ass."

"I know."

Angie walked toward me and pushed me back to the wooden bench set against the wall. As I sat down on it she swung her legs on either side of mine and straddled my lap facing me.

"What would you do with it if I let you?" she asked softly.

"Uh, what?"

"My ass, what do you want to do to it?"

She pulled my hands down to her hips, then moved them to her butt. It didn't take any more prodding than that for me to grab her ass and squeeze gently.

"I really am kind of worried about getting caught now," I said.

"Don't worry, I'm keeping watch," she said, as if that solved the problem. "I want to know what you'd do."

"Hypothetically?"

"Sure, whatever." She leaned in close to whisper in my ear. "Would you stick your dick in it?"

"I'd definitely consider it."

Whether or not this was just Angie teasing me, I was getting seriously turned on by it. She was even grinding slowly on my lap and she had to be able to feel my growing erection.

"'Cause I know you haven't been using condoms with the other two, and there's no way I'm letting you get me pregnant," she continued in a voice that just kept getting sexier.

"So wait, is this not hypothetical anymore?"

"It never really was."

I let a finger travel down between her butt cheeks, pressing her panties deeper into her crack. Her asshole was there somewhere if I could manage to find it through her underwear. I was really starting to believe that she was serious about having sex, even the anal part.

"Did you work everything out with Kelly ahead of time?" I asked. "You two seem way too in synch this weekend."

"Didn't you know? We're telepathic," Angie giggled. "I know exactly what she's thinking. Right now it's mostly about Jill's boobs. We need to be careful or we'll have a little bisexual nympho on our hands."

"There are worse things in the world," I said offhandedly.

Obviously my sisters weren't actually telepathic, but they seemed far too close to it for comfort. Was Kelly actually thinking about Jill that way? It was possible that Angie, once again, had just picked up on something that I hadn't. The girls had definitely looked cozy, all snuggled up together. Naked.

"Now you're thinking about it, aren't you," she said.

"Yeah." I nodded.

I was getting more and more horny the longer we sat there and I'm sure Angie could tell.

"Maybe you should take me down to your bed now."

"I would, but you're sitting on me."

She got up and I followed her inside and back down the stairs. I watched her ass pretty much the whole way; her panties were covering even less of it now thanks to my efforts and, unless it was just my imagination, her hips were swaying more than they normally did.

Kelly and Jill were right where I left them, and Jill's soft snoring told me she had drifted back to sleep. Kelly on the other hand opened her eyes as we passed and gave me what I could swear was a wink.

Having slowed down a little, I was a couple seconds behind Angie walking into the bedroom. As soon as I got through the doorway she tossed me a small object that I only barely managed to catch. It turned out to be a bottle of lube."Why the hell would you even have this with you?" I said.

"For personal use, in case I get bored," she said.

"... and now I'm imagining what that could mean."

"I could show you if you want." Angie pulled off her shirt and once again stood in front of me topless. "Or we could just fuck."

"Yeah okay, let's do that," I said faintly.

"You'll probably need to take your clothes off."

I tossed the lube on the bed and started stripping. There was some residual, ingrained embarrassment to be had from getting naked in front of my sister, but I'd done worse recently. That plus she was naked well before I was and being turned on tends to be a good way to override other emotions.

Angie moved toward me as I finished undressing and put her arms around my neck. My cock was nearly fully hard and pressed against her tummy as she not-quite-hugged me.

"I thought masturbating while you and Jill were fucking was the most twisted thing I'd ever done," she said. "But this blows it out of the water."

"You like how wrong this is, don't you?"

"I do. I love that my little brother is going to put his cock in my ass," she said, a shiver running through her as she spoke. "Fuck I'm getting horny. Come on, let's do it."

She certainly had more basic motivations than Jill or Kelly for wanting this, but that wasn't necessarily bad.

Angie crawled on to the bed on all fours and leaned down with her butt sticking up into the air. I hesitated only a moment before climbing up behind my wanton sister and grabbing the bottle of lube.

"You know what you're doing right?" She looked over her shoulder at me questioningly.

"I have an idea, yes."

Her asshole that I'd been unable to find through her panties was now on display directly in front of me. Admittedly this was not really my area of expertise, but I was pretty sure I could manage. The most important thing as I understood it was not to try going too fast.

I squirted some of the lube just above Angie's asshole and then used my fingers to try and keep it from all dripping away. Slowly, but with increasing force, I pushed the tip of one finger against her opening. I made sure to keep it lubricated and gradually I got the end of my digit inside.

It was tight, there was no getting around that, and I was a little worried that actual sex would hurt her. I kept moving my finger gently in and out, adding a bit more lube when I thought I needed to and hoping she would relax more.

"I guess I've been assuming, but you have done this before haven't you?" I asked.

"Yep. Why, you think I don't know what I'm getting in to?"

"No, you're just... tight."

"I know," she said cheerfully. "It'll make it feel better for you as I understand it. Just keep doing what you're doing for a bit and it'll be fine."

That was kind of what I had been thinking, but confirmation was good. After a couple minutes her ass did seem to not be squeezing my finger quite so much. More and more I wanted to know what it would actually feel like when it was my cock in there instead.

When I withdrew my finger Angie gave a disappointed sigh and looked back to check on me. She seemed satisfied when she saw me rubbing lube on my cock in preparation and simply waited for me.

I knelt behind her when I was ready and pressed the tip of my cock against her hole. Slowly she accepted me inside until the head was past her outer ring.

"Wait, stop for a second," she said suddenly.

"What is it, you want me to take it out?" I asked, wondering if I'd done something wrong.

"No no, just let me adjust. Your dick's a little bigger than your finger you know," she said as though it might be news to me.

I held as still as I could, trying not to shift my weight and accidentally push farther into her butt. Even with only the first part of my cock in it was incredible how much she was squeezing me.

"Okay, try just going slow now," Angie said after a moment.

As instructed I started moving in a none-too-forceful way. I quickly became riveted by the sight of my cock disappearing a bit more into my sister's ass before reemerging, only to right back in again. It was the first time I'd ever had the sensation of watching porn at the same time as I was having sex.

"I forgot just how good this feels," she breathed.

"Been a long time has it?"

"Longer than I'd like."

"How is... I mean how does it feel from, you know, your side?" I asked hesitantly.

"Hmm, I don't know if I can describe it. Maybe you just need to try it some time."

"I'm not that curious."

I was getting as deep as I could go in Angie's ass, and my strokes were getting longer and harder with each passing moment. She was rocking back to meet me on every thrust and when I finally buried myself to the very base of my cock I held myself there for a moment to see what she would do. She kept moving her hips, seemingly oblivious to me having stopped at first, but then pouted at me over her shoulder when I didn't immediately start fucking her again.

"You look kinda sexy like that," I said.

"I look sexy all the time," she corrected.

"That too."

Drawing my cock out about halfway, I shoved it back in rougher than I had been yet. Angie groaned in pleasure and again started to move her hips in rhythm with me as I settled in to a comfortable pace.

"Ooh yeah little brother, keep doing that," she said. "Keep fucking your big sister's ass."

Despite already knowing what was going on, having Angie say it like that just reinforced how wrong what we were doing was. Unlike with Jill and Kelly, we were having sex just to get off. It was still loving in its own way, but most of the appeal for Angie, and me to a lesser extent, was that we knew just how much we shouldn't be doing this.

Even though it really was the whole point of the exercise, it still took me by surprise when Angie came. She gave no indication right up until letting out a mixture of moaning and swearing, thankfully somewhat muted, as her front half collapsed on the bed.

"Fuck," was her first coherent word.

"You still want me to keep going?" I asked, uncertain whether it might be getting too painful or not.

"Hell yes! You gotta cum in my butt. No point doing this half-assed," she said, snickering at her own joke.

There was no way I could hold out much longer anyway, and given Angie's request there really wasn't any reason to try. After another minute or two I shot my cum into her, not bothering to warn her first. She noticed immediately though and the way she acted it almost seemed like she was going to cum again just from that.

"Yesss," she hissed, arching her back all the way to her neck.

When I pulled out a small amount of cum dripped out too before Angie rolled onto her back. She had a dreamy smile and her eyelids were half closed in satisfaction.

"It's leaking out already," she said, almost sounding disappointed.

"You need to go clean up?"

"Nah, I'll just put my panties on, keep it from going anywhere."

I watched her get up and locate some clothes before getting dressed. Apparently she wasn't kidding about not getting cleaned up first.

"I'm going to be able to feel that all day," she said. "I wonder how soaked my underwear's gonna get."

"You're seriously just going to stay like that?"

"I know, it's dirty. But it's sooo sexy. Your cum just leaking out of my butt all day, it'll keep me horny until I get a chance to get off again."

Angie opened the door and walked out before I could say anything else. I didn't really have a complaint with her choice anyway since in its own twisted little way it was pretty hot to think about. Plus she was the one who would have to deal with any potential discomfort it might cause.

I heard the door swing open again and assumed it was Angie coming back for something, but when I looked it was Jill. She stood there hesitantly as though she wasn't sure she should come in.

"What's up?" I asked.

"Nothing. Kelly and Angie went for breakfast, I wanted to see what you were doing," she said.

"Not hungry?"

She shook her head. "Not really."

Jill was glancing frequently toward my now-soft cock. She had to know more or less what had just happened between me and Angie, though I didn't know exactly how she felt about it.

"Well I'm not going anywhere," I said. "You're welcome to join me in not moving for a while if you want."

"'Kay."

She sat down on the bed with me and pulled her knees up to her chest. She seemed like she had something she wanted to ask, but I didn't press her.

"Do you think you can get hard again soon?" she blurted out finally, blushing a little.

"I probably could," I said. "Why?"

"Because I know we're both going to have to leave soon and I hoped...."

"You want to have sex again?" I finished for my embarrassed cousin.

She nodded quickly. "If you want to. I know you just, you know, with Angie and all and maybe you're not ready yet."

"You're right, I'm not ready yet. But if you can wait a little bit then I think we can certainly manage."

Jill giggled softly, then crawled over to me. She curled up next to me happily and I realized just how much I loved seeing her like that. Her and Kelly and Angie, I wanted all three of them to be happy even if our current situations meant I wouldn't see that much of them after today. As I lay there naked with my cousin, I resolved to change a few things in the near future. There was no way I was going to wait months to see them all again.