Fun in the Hot Tub

Rose, what do you think?"

"A nice holiday, somewhere hot."

"Peter, it's your turn."

"A new car," then I stood there smiling, expecting Father to agree with me, but he didn't say anything, instead he just looked at my Sister.

Her face was a picture of concentration, then a huge grin appeared.

She almost shouted it out, "I want a Hot Tub."

Mother was now shaking her head.

"I still think we need a holiday," then she gave my Father a look that said, 'Agree with me'.

"I wish I hadn't asked."

"Yes, it should just be me and you that decide what to do with the money."

Before my Sister and I could complain, Father quickly said, "No", then he added, "It's difficult, you all want different things."

Mother then interrupted him, "You never told us what you want."

"A bit of peace and quiet would be nice."

I laughed, but Mother was not amused. Her hands were now on her hips, and she was glaring at him.

He put his hands up in the air, as if surrendering, then he said, "I would like to have the garden landscaped."

My Father was a successful business man, his last project had brought in a decent amount of money, quite a bit more than he had expected. We were all together now trying to decide how to spend that extra money.

For the next ten minutes we discussed the suggestions, but nobody would change their mind. It was now getting a bit heated.

"I have had enough of this, I am putting it into our savings account."

"What about picking it out of a hat?"

I could see Father was thinking about Mother's idea. I desperately wanted us to get a new car, because, with a bit of persuading, I would have a good chance of having our current one. One in four was not good odds, but better than nothing.

"OK," then he smiled before adding, "Alice, go and get my hat."

She took one step forward, then she stopped. We all then laughed, even Alice. Father didn't have a hat.

Five minutes later Father was picking a piece of paper out of a cup. He quickly unfolded it, but then he waited a few seconds before speaking.

"The winner is," then, he looked at each of us in turn, before saying, "A holiday."

Mother was obviously pleased, but my Sister was now sulking. I was quite happy, that had been my second choice. Father just looked relieved that it was all over.

"Peter, please pass me the cup. I will empty it into the bin."

I was handing it over to Mother, as my Sister was walking passed me. She nudged my arm, I think on purpose out of spite, because she had lost. The cup turned over, and a slip of paper dropped to the floor. I picked it up. I was about to put it back into the cup, but then I noticed the worried look on Mother's face, and she was staring at it. When I unfolded it she groaned, on it was written, 'HOLIDAY'.

Father checked the others, they were all the same. 

"Rose, I am disappointed with you."

She hung her head in shame, but I was impressed, I wish I had thought of doing that. 

This time Father prepared the draw, and the winner was, 'Hot Tub'. Alice immediately punched the air. I just shook my head, I have never understood their appeal. I think landscaping the garden might even have been a better choice.

Five minutes later I was over it, but I knew that for the next few days my Sister would be unbearable. Passing her bedroom, on my way to mine, I decided that I should at least congratulate her, it was the decent thing to do.

"Sis, can I come in?"

There was a loud, "Yes", from her.

"I just wanted to say..."

My Sister was sitting on her bed, and she was only wearing her underwear.

I mumbled, "Sorry, I will talk to you later."

"Don't be silly, my swimsuit is more revealing than this," then she smiled before adding, "And you have seen it all before."

I had. Two months ago I had barged into the bathroom, desperate to take a leak. I stopped dead in my tracks when I saw her. She was sitting on the floor cross-legged, completely naked.

She looked up at me, then she calmly said, "Sorry, I forgot to lock the door. I am doing my daily meditation."

I just nodded.

"I also do some stretching."

She then put her hands on her knees, pulling them outwards. I saw the concentration on her face, it must be straining her inner thigh muscles, but then my gaze was fixed on what was between her legs. She held that pose for a minute, then she relaxed.

"Let me get dressed, then you can have the bathroom."

She then smiled at me as she pointed to the door. I left, and a couple of minutes later the bathroom was free. 

"So little Brother, what were you trying to say?"

She seemed to be enjoying my discomfort.

I started again, "I just wanted to say that I am happy for you."

"You mean for getting the Hot Tub?"

"Yes."

"That is very sweet of you."

Back in my bedroom I shook my head, seeing my Sister like that was not good for my blood pressure. Ever since the incident in the bathroom, I have been having unhealthy thoughts about her, and, despite my best efforts, they refuse to go away. I now even masturbate while I think about her body, and what a body it is.

She is twenty two, three years older than me, and is just over five feet tall. Her face is pretty, rather than beautiful, but she does have amazing green eyes. However I doubt if many men notice them, their gaze is always directed towards her large breasts. How big are they? Think of Dolly Parton, then add another inch or two. 

When I first started to get interested in girls, I soon realised that my Sister was hot, as did my friends. I took pride in watching them drool over her. Over the years my feelings for her have been admiration rather than sexual, but that changed when I saw her naked. She had been sitting on the floor, hands on hips, her tits pointing up at me. Large firm melons, topped with cherry sized nipples. Without clothes I could appreciate the slimness of her waist, and then, when she stretched her legs, I got to see her most intimate place. I was standing, so I didn't have the best view, but I saw a lot more than a brother should ever see of his Sister. Large lips obscured her clit, but I could see her pink opening. It was a nice cunt, but agonizingly for me, it would always be off limits.

For the next two days I didn't see much of my Sister, she was spending a lot of time in her bedroom. That was unusual, what was going on?

I knocked on her door, then I shouted, "Are you busy?"

"Yes, but you can come in."

This time I thought I should check before entering.

"Are you dressed?"

"No, but you can still come in."

I wasn't sure if she was joking, but then I heard her laughing.

"It's OK, I am fully clothed."

When I opened the door, it wouldn't have surprised me if she was naked again. However she wasn't. As she had said, she was fully clothed, but she was wearing a short skirt and skimpy top. As she always says, "If you have got it, then flaunt it." And boy does she have it.

She was sitting on her bed, and in front of her were lots of papers. In her hand she had a note pad.

"Are you studying for an exam?"

She smiled, then she shook her head.

"More important than that, it's for the Hot Tub. Take a look at this magazine."

She thrust it into my hand, it was, 'Hot Tub Monthly'.

I tossed it back onto the bed.

"Thanks, but I have already read it."

Her eyes widened in surprise, but then I spoiled it by smiling. This time when she handed it to me, I did take an interest in it. Its feature piece was, 'Top Tips When Buying a Hot Tub'. 

I passed it back to her.

"So have you decided?"

"Yes, but I just need to persuade Father. It's a bit more expensive than the budget he gave me."

That might be difficult. If it was a boyfriend she wanted something from, then she would only have to flash her tits to get what she wanted. However Father was immune to her charms. Now if it was Uncle Francis that was paying, she would be laughing. I wonder if anybody else has noticed how he looks at her? I think if she asked him for anything, he would immediately say yes, in the hope that one day it would help him to get into her knickers.

"I want the Premium Plus model, but I only have enough for the Premium."

I wondered how the two compared, but I didn't ask in case she told me. I didn't fancy a ten minute lecture on Hot Tubs.

I looked again at all the stuff on her bed, she was certainly taking it seriously. I then left so that she could continue with her research.

That night in bed I thought about Alice, this time as my Sister rather than as an object of desire. She wasn't just absurdly attractive, she was also very clever. You have to be if you have a Chemistry Degree, and she achieved a First Class. If she has selected the Premium Plus model, then it must be the one to have.

The next day I was late getting up, it was a Saturday so it didn't matter. Everybody else had already eaten, so I had the kitchen to myself. I was just tucking into a large bowl of cereal, when my Sister popped her head round the door.

There was a large grin on her face, "Premium Plus," was all she said, then she was gone.

So she had convinced Father. 

Then I heard her shout from the living room, "Now the difficult decision. What colour should it be?"

I didn't care. It was something I was never going to use.

For the rest of the day there was no mention of Hot Tubs, but at Sunday lunch there was.

"Now that we are all together, I can tell you what we have chosen."

He then let my Sister tell us.

Without any preamble, she said, "Premium Plus from Hot Tubs International," then she added "Midnight Blue."

"Shouldn't we get the Plus Plus one, or even the Plus Plus Plus?"

My Sister ignored me, but Mother looked concerned. Alice decided that she needed to reassure her.

"David is trying to be funny. The ones he mentioned don't exist."

Mother looked relieved, then she said, "When will we get it."

Father was about to speak, but my Sister beat him to it, "Five weeks, if we order it today."

She then looked at Father, he just nodded.

It wasn't five weeks, it was four, but it took two days to install rather than the expected one. 

"It's fully guaranteed for five years, but it will need regular maintenance."

Father then signed some documents, and the fitters left.

I wasn't at home when it was first used, I was away staying with a friend. When I got home my Sister was eager to tell me all about it.

"It was great fun, you should have been here. You could have joined us."

"Who was in it?"

"My friends. Janet, Anne, Mandy and Charlotte."

"With you that's five."

"Yes it takes five"

"There are only four seats."

She looked at me as if I was stupid, then she sighed, before saying, "One person floats in the middle."

I shook my head, "It's not for me."

However a week later she talked me into it. I had decided that if I tried it, and then told her I didn't like it, she would stop mentioning it. 

I stepped into it, then I quickly sat down. It was now late evening and there was a slight chill in the air, but the water was nice and hot. I lifted my legs up, to let them float. I could feel the water from the jets gently hitting my body. I was surprised at how good it felt, maybe my Sister was right. Ten minutes later I nearly fell asleep.

"No sleeping in the Hot Tub."

I looked up, it was Alice.

"Mind if I join you?" but she didn't wait for an answer before getting in.

She was now sitting opposite me, her big tits bobbing up and down, held in place by the smallest top I had ever seen. When she had got in I had briefly seen the bottom part of her swimsuit, it was almost non-existent.

I blurted out, "Did Mother or Father see your costume?"

She laughed, then said, "No, but if they did what are they going to do? I am not a child, I am twenty two."

That was a fair point. She was old enough to wear what she wanted, but she was making me feel very uncomfortable.

"Next time Uncle Francis comes round I think I will wear it."

So she at least had noticed how he looked at her.

"That's not a good idea. You might give him a heart attack." 

"I might even bend over in front of him."

She was now grinning. She might actually do that, and he might actually have that heart attack. 

"So little Brother, how is your love life?"

"OK, but not as good as yours."

Mine was never going to be as good as hers. She was at least a nine out of ten, possibly even a ten, but I was a seven at best. I wasn't ugly, I would say I had an average face. I had a decent body, but I really needed more muscle. I was a bit skinny. My best feature was definitely my cock. It wasn't a monster, seven inches of thick meat, but I had been in the locker room enough times to know that it was bigger than most.

"Are you still seeing Mary?"

I winced, then I managed a weak smile before simply saying, "No," then I quickly added, "How is Robert?"

I didn't want her to ask anything else about Mary, the memory was still too painful. Being dumped was always difficult to take, but when it's in front of your friends, it's even worse. 

"Don't know, don't care. I don't want to talk about him, he is such a loser."

She didn't sound concerned, and there was no reason why she should be. She would only be single for as long as she wanted to be. 

"What do you think of the Hot Tub?"

I tried to sound nonchalant, as I said, "It's OK," but she wasn't fooled.

"Go on, admit it. You really like it."

My big smile gave it away, then I said, "It's a lot better than having the garden landscaped."

She thought that was really funny, and as she laughed, those big breasts of hers jiggled even more. My cock was now starting to rise. When she had finished she gave me a quizzical look.

"Can you keep a secret?"

I nodded, but what was it, something about Robert?

"If I take my top off will you tell on me?"

I just shook my head, I was in shock. While she put her hands behind her back, so that she could unhook it, I put a hand under the water so that I could adjust my cock. Her large tits were now free, and my cock was vertical, the head almost sticking out of the top of the waist band on my swimming shorts.

"That's a lot more comfortable."

I couldn't take my eyes of them. She must have noticed, because she giggled.

"I can tell you like them."

I blurted out, "I would be a fool not to, they are magnificent."

She then raised herself up so that they were completely out of the water. Then, just to make sure that I got the best possible view, she put her hands underneath them and lifted them higher. She was obviously proud of them.

Looking down at them, she said, "Do you think they are too big?"

I quickly shook my head, "No, they are perfect, and I love your big nipples."

"Good," then she added, "When do you think Mother and Father will be back?"

"Eleven, possibly midnight. Why do you ask?"

"I don't want them to catch me with my top off."

"No chance of that, it will be at least another two hours before they are home."

"In that case there is plenty of time," then she gave me a wicked smile, before continuing with, "For you to play with them."

I opened my mouth, but nothing came out. 

"Would you like to do that?"

I nodded vigorously, then I managed to say, "Why?"

She shrugged her shoulders, then, in a calm voice, she said, "Because I want you to."

I had now got over the shock, and I was eager to seize the opportunity before she changed her mind. When I touched them, the first thing I noticed was how firm they were, then, when I lifted them up, how heavy they were. As I fondled them she looked amused, this must be what all her boyfriends do when they first get their hands on them. However, when I got to her nipples, her expression changed, she was now biting on her lip, and she was moaning.

"Gentle, they are very sensitive."

And they were very big. The attention my fingers were giving them had made them grow. They were now nicely swollen, ready to be sucked, and I was desperate to do that. When I bent my head she didn't resist.

"That's good, suck harder."

I did, then I kept on doing it.

"The other one."

I quickly rubbed it between a finger and thumb.

"No, suck it."

She wanted me to switch nipples, and that's what I did. It got the same treatment as the other one. This time my hand didn't go to her nipple, it went under the water, then between her legs. She stiffened when I touched her there.

"NO. Just my tits."

When I removed my hands she relaxed. I raised my head from her nipple.

"Sorry, I got carried away."

I got a smile, so I knew she wasn't annoyed.

"What if I don't go inside?"

I could tell she was thinking about it.

"OK, but I mean it. If you stick a couple of fingers up me, I will not be amused."

The thought of doing that almost made me come in my shorts, but I would be a fool to spoil it by taking it further than she wanted. This time when I touched her between the legs, she didn't tense, instead she opened wider to give me better access.

I was now back to sucking her big nipples, but this time I was also exploring her cunt, but just from the outside. It wasn't ideal, a thin piece of material was blocking my way, but it was still exciting. 

"Lower."

When I did as she asked, she gave a loud moan, good, that was where to concentrate on. For the next few minutes I rubbed her as hard, and as fast, as I could. It was working, she was now squirming against my fingers, and she was making more noise.

"Fuck, I am nearly there."

She lasted another minute, then she climaxed. As she did, she closed her eyes, and then she clamped her legs together, trapping my hand. I stopping sucking on her, but I had to wait until she had relaxed before I could get my hand out. When she eventually opened her eyes, she looked a bit dazed.

I got a weak smile from her, then she said, "That got a bit out of hand," then she added, "But in a nice way."

"And I kept my promise."

I was surprised when she laughed.

"You have a lot to learn little Brother."

"What do you mean?"

"I know I said not to finger me, but do you think I would have stopped you when you had got me so excited?"

"Fuck, so I could have got two fingers in you?"

She laughed again, before saying, "Yes, and possibly three if you had timed it right."

I was still shaking my head when she got out of the Hot Tub. I wasn't disappointed though, what had happened was good, very good, even though my cock had not got any action, and I had the feeling that this wasn't going to be a one-off.

Five minutes later I was in my bedroom, my hand on my cock. I didn't last long, and when I climaxed I was saying my Sister's name. It was a big one, and I made a mess of the sheets. As I cleaned it up, as best I could, so as not to freak Mother out when she did the laundry, I thought about the Hot Tub. Was it possibly the best invention ever? It would not be on many peoples top ten, but it was now on mine.

The next day I didn't see my Sister until our evening meal. We were now all at the table enjoying one of Mother's famous curries.

Turning to me, Father said, "I heard that you went in the Hot Tub last night. I was surprised when Alice told me."

I finished my mouthful of food, then I said, as casually as I could, "It was OK."

"Your Sister said you really enjoyed it."

I had, but not as much as she had. I glanced across at Alice, she was grinning.

"Rose, do you think we should try it?"

Mother looked horrified, then she gave a firm, "No."

Father looked disappointed.

"I don't want to, but there is no reason why you can't use it on your own, or with Peter, or Alice."

He just shook his head. 

My Sister looked at me, then she said, "It looks like we have it all to ourselves."

I nodded, then we shared a look that said, 'And we are going to make the most of it.'

it was three days before I got back into the Hot Tub. Mother and Father were out again, but this time they would be back early, probably before ten. It was now eight, so plenty of time, but would my Sister join me? We hadn't talked about it, but I saw the look on her face when Mother told her earlier that they were going out. She looked pleased, almost excited. However fifteen minutes later I was still waiting. I was about to get out when I saw her approaching. She was wearing the same two piece swimming costume, and it covered very little of her amazing body. My cock instantly stiffened.

"I bet you thought I wasn't coming," then she added, "But I soon will be."

She then laughed at her own innuendo. I didn't say anything, I was just glad that she was now here. As soon as she was in, she took her top off. As I grabbed for her tits she pushed me back, then she wagged a finger at me.

"Remember, just on the outside," then she winked at me.

I could feel my heart pounding in my chest. This time I was going to get to finger her. My Sister, the hottest girl I knew, was going to let me touch her in her most intimate place. Could my life get any better? Yes, if she would just let me put my throbbing cock into her, but I put that thought out of my mind, that was too much to expect. 

We started the same way as last time, with me enthusiastically sucking her tits. Ten minutes later we were still going. My hands were well away from her cunt, I didn't feel the need to rush, I wanted to enjoy those big nipples of hers for as long as possible. After another five minutes she wanted more, she was now pushing my hand down under the water.

"Hi, we are back."

I looked up, it was Father, he had come in by the side gate. Thankfully he was still at least thirty yards away, and the Hot Tub was on raised decking, so he couldn't see anything except our heads. But if he came over to talk to us, then that would be different, he would clearly see Alice's bare breasts. Now that would take some explaining. Even my Sister would find it difficult to talk her way out of that.

"Jim, will you come and help me."

It was Mother calling him. He gave us a quick wave, then he was gone. Thirty seconds later my Sister had her top back on, and it was just in time, because the side gate opened again. This time Mother was there as well. They then came towards us, stopping only a few feet away. Alice kept herself low, I think she didn't want them to see her revealing swimsuit.

"The restaurant was not what we expected, we just had a drink then left," and then he added, "And your Mother has a headache."

I tried to look sympathetic, but it was difficult, all my concentration was directed to finding my Sister's sweet spot. When she made a low groan, I knew I had found it. They didn't appear to notice, but if they looked closely they would see that their Daughter was now chewing on her lip.

Father looked over at the garden, then he mumbled something about landscaping it. He then starting explaining his plans. I just nodded, as I continued to rub my Sister's clit as fast as I could. It was risky, but it was exciting, and Alice wasn't stopping me.

This time her climax was silent, well almost. There was a single grunt when I pushed her over the edge, but Father was too busy talking to notice. However, Mother did give her a concerned look, but it quickly went. We had got away with it.

They only stayed for a few more minutes. As soon as we were alone, my Sister shook her head.

"That was naughty of you. I almost screamed."

Now that would have been interesting.

"Alice are you OK?"

"Yes, Peter has just given me a wonderful climax. Now Father, what was it you were saying about the garden?"

I started to get out, I was eager to get to my bedroom so that I could reach my climax, but she pulled me back. 

"Do you think they will come out again?"

"No, why would they?"

"Good, now it's your turn."

Before I could say anything, she had pulled my shorts down. Her hand was now wrapped around my cock, and she was feeling its length.

"I am impressed. It's a good size, and it's thick. Seven inches?"

"Yes, are you some sort of expert on cocks?"

She gave a deep laugh, then she said, "I suppose I am."

There was pride in her voice. It was no wonder she was an expert, when you have a body like hers, you get all the cock you can ever want.

"You have to come in my mouth."

That was my idea of heaven, but my cock would have to be sticking out of the water.

"I would like to, but isn't it too dangerous, we might get caught?" 

She shook her head, before saying, "Yes, but you coming in the water is a big mistake. It will make an awful mess in the Hot Tub, anybody seeing it will know what we have been doing."

I hadn't thought of that, but she must be right. Then I had a better idea. 

"I can come inside you. That's perfect, no mess, and ..."

"No."

She hadn't let me finish.

"Nice try little Brother, but not today."

I was tempted to ask when, but I didn't want to push my luck. It was a blow job or nothing. Sometimes in life we are faced with a difficult choice. Was this such a time? Don't be silly.

I was now sitting on the edge of the Hot Tub, with my feet dangling in the water. Each time my Sister bobbed her head, it felt as if she was taking my cock in deeper. When she started to gag she eased off a bit. I could tell she was enjoying it as much as I was, perhaps even more. After five minutes I could feel the sap rising, I was going to come. I was about to warn her, but she must have sensed it, because she slowed down. She was now keeping me on the edge. A minute later I was about to explode, but she suddenly stopped. I thought I was on the edge before, but this time I was hanging on by my fingernails, the slightest movement from her and I would climax. I didn't think it was possible, but thirty seconds later my cock was still throbbing, begging for release. Then she moved her head, taking all of my cock deep into her mouth. That was too much for me. As I spurted, I could see her gulping. When I had finished she quickly pulled her head back, she was now gasping for breath. 

I looked at her in admiration, she was smiling, and I could tell she was eager for me to tell her how she had done.

I held my hands up, then I said, "The best one ever."

She giggled, then she said, "I do like to think that I am rather good at it. I have certainly had enough practice."

I pulled my shorts back up, then I slid down into the Hot Tub. The water felt even hotter after being exposed to the chilly night air. 

"Five minutes and I am going to go in."

I just nodded, I was now so relaxed that if I closed my eyes I might even fall asleep.

"Did you know that women with big tits are generally the best at giving blow jobs?"

In my experience, women with big tits are generally the best at everything.

"Especially if they are early developers. When you get tits, boys are all over you. Letting them come in your mouth, or on your tits, is the best way of stopping them going too far."

"So did that work for you?"

"Sometimes," then she giggled, before adding, "If it was a big cock, then I couldn't resist."

All the practice had paid off, she was definitely a ten out of ten for cock sucking. The only problem was, I now had a sinking feeling that nobody else would ever be as good as she was, and that I would always be comparing them to her.

The next day at breakfast I found myself alone with my Sister.

"Alice, what we did in the Hot Tub."

She was now looking around, making sure we were alone, and from the expression on her face she wasn't happy.

"Don't talk about it here."

"Can't we do things away from the Hot Tub, in the house?"

There was a quick, "No," from her, then she sighed, before continuing with, "That would be dangerous. Outside it's a bit of fun, but anywhere else and it wouldn't feel right. Does that make sense?"

"I think so."

She then left the kitchen, and I sat down at the table to finish my coffee. To me sex was sex, no matter where you did it, but my Sister had a different opinion. Did it bother me? No, I was happy to play by her rules, so long as she continued to let me have access to that gorgeous body of hers.

It was a week before we got back into the Hot Tub. I was so keen, that I wanted to use it sooner, while Father and Mother were in the house, but Alice said no when I suggested it.

They were staying overnight with friends, so there was no chance of us being caught. Alice was in the Hot Tub first, five minutes later I joined her. This time she hadn't bothered wearing her top. I quickly looked down, to see if she was naked, but she wasn't.

"It's a bit colder tonight so I have turned the heating up."

I just nodded. She was the one who was in control of all the dials and knobs. It looked a bit complicated to me, but I knew she would already have mastered them. 

"How did it go last night?"

I could tell straight away that I had touched a nerve. I tried to look sympathetic as I waited for her to tell me more.

"It started off OK, it's a brilliant nightclub."

I nodded. I haven't been yet, but from what my friends have told me, it's an exciting place.

"We had only been there thirty minutes, when a tall handsome guy came over to our table. He smiled at me, and I was just getting up, when he turned to Janet."

I was shocked, and she could see that I was.

She shook her head, before saying, "Yes, he asked her to dance."

Janet wasn't ugly, I would date her, but she wasn't in Alice's league. This sort of thing happens to me all the time, but this might even be a first for my Sister.

Then, in a low voice, she said, "They even went home together."

I felt sorry for her. Time to cheer her up.

Two minutes of me sucking on her tits had put her in a better mood. As before, I kept switching from one to the other. This time I was the one eager to go further. My hands were now deep under the water, and I was trying to pull down her swimsuit bottom.

"Let me do it."

She was quickly out of it, then she threw it over the side of the Hot Tub.

"I don't know why I bothered wearing it, it was always going to come off."

This time, when I put my hand between her legs, there was nothing to stop me fingering her. I made the most of it, pushing two fingers into her as deep as possible. Then, with my other hand, I parted her big lips, so that I could get to her clit. When I found it she gave an almighty moan. If this wasn't cheering her up, then nothing would.

"Fuck me with them," then she added, "Put another finger in as well."

I was happy to oblige. Three was tight, but she didn't complain, she was even thrusting forward every time I pushed them into her. A few minutes later she was moving even more.

"Don't stop, I am nearly there."

"Can I fuck you?"

She moaned, but she didn't answer me.

"Can I?"

This time there was a quick, "Yes," followed by, "But let me come first."

That spurred me on, the sooner she got her climax, the sooner I would be able to slide my cock into her sweet cunt. The finger on her clit was now almost a blur, and the fingers inside were ramming into her like pistons. She only lasted another thirty seconds. When she climaxed she arched her back, her head was now almost under water. This time there was no biting on her lip to keep the noise down, it all came out. And she was loud. 

I waited patiently for her to come round. When she did, I had a big smile on my face, it was my turn next. 

"That was some climax."

My smile got even bigger.

"Now I suppose you want to fuck me?"

I shrugged my shoulders, then I said, "If it's not too much trouble."

She found that very funny, eventually she stopped laughing.

"I am going to bend over the side, so that my bottom is out of the water. You stand behind me."

Was that the best position? She must have seen the apprehension on my face, because she said, "I have been fucked lots of times in a Hot Tub. Trust me, this is the best way."

As soon as she bent over all I could think about was getting inside her. Her cunt was there in full view, it was ripe for fucking. Without any more foreplay, I was now pushing into her. I didn't stop until I had no more to give.

"That feels good. If you take your time I might be able to climax again, but if you can't wait I will understand."

That was a dilemma. I was bursting, desperate for a climax. Starting slowly might even be too much for me, but I decided I was going to try to satisfy her as well.

After five minutes of taking it easy, all was going well. A minute later it changed.

I muttered a quick, "Sorry," then I started to fuck her hard. She responded by raising her bottom higher, so that I could go in deeper. She was now moaning, but I couldn't last. When my cock started twitching, I grunted. As it spurted into her, I squeezed her bottom with both hands, only stopping when my climax was over.

When I pulled out of her she didn't sit back down, instead she climbed out of the Hot Tub. 

"I need to take a shower."

She then leant over and kissed me on the check.

"I would like to get back in, but all that gunge you pumped into me is now starting to seep out."

Then she was gone, leaving me with memories I would never forget, and a smile that was so big it was making my face ache

The next day, on my way to college, I thought about what had happened yesterday. Had I really had sex with my Sister? Yes, and it was amazing. Should we have done it? No, but I didn't feel bad about it, something that good couldn't be wrong. I then noticed the woman on the seat across from me was giving me strange looks. I realised I was smiling. After quickly stopping, I turned my head away from her, to look out of the window. When she got off at the next stop, I shook my head. She must have wondered what was going on, a strange man smiling at her on a bus. 

"Excuse me young man, why are you smiling at me?"

"Sorry, I didn't realise I was doing it. It was because I was remembering fucking my hot Sister last night. I took her hard from behind."

Now that was a mistake. I spent the next couple of minutes trying not to laugh.

It was almost seven when I got back home, I had stayed late to finish an assignment. Father was out, but Mother was in the kitchen. There was a lot of noise coming from the garden, then I heard Alice laugh.

"Your Sister is showing of her new toy to some friends."

"Sounds like fun, I think I will join them."

Alice was in the Hot Tub with Janet, who I had met before, and another girl that I hadn't.

"Hi Peter, you know Janet."

Smiling at her, I said, "Hi."

"And this is Hannah." 

"Nice to meet yet."

Alice then asked, "Are you going to join us?"

I hadn't thought of that. My intentions were to say hello, chat for a while, then leave.

Janet gave me a nice smile, then said, "Please, we need some male company."

Five minutes later I was in the Hot Tub. This time it felt different, the water was bubbling up more, and the jets seemed to be on a higher pressure, my legs and lower body were now getting a massage.

"Have you changed the settings?"

"Yes, to OM."

Alice was now smiling, and the other two looked as if they were trying not to laugh. I had no idea what OM was, but I could tell my Sister wasn't going to tell me unless I asked.

I sighed, then said, "What is OM?"

There was a chorus of, "Orgasm Mode," then they all laughed.

"Is that just on the Plus Model?"

That set them off again, and I wasn't sure they were ever going to stop. When they eventually did, Hannah looked at Alice, then said, "Tell him."

"No little Brother. OM is really Optimum Mode, meaning the highest pressure. When it is on, you can position yourself so that the jets of water hit you in a certain place, and if you stay there long enough..."

She didn't have to finish, I knew where that place was, and I knew what the outcome would be.

"But it only works for us girls, men find it uncomfortable rather than exciting."

That was Janet, and she sounded as if she was speaking from experience. Alice then looked at her friends, before saying, "Does anybody want to show him how it's done?"

"I will."

It was Hannah, she had even put her hand up to show she was willing.

"But no telling. What goes on in the Hot Tub, stays in the Hot Tub."

My face was serious, as I was nodding. 

She then looked at Alice, waiting for approval.

"OK, but keep the noise down."

I moved closer so that I could get a better view. Hannah was putting on a show, and I didn't want to miss anything. She then wiggled about on her seat, moving lower into the water. I watched, fascinated, as she opened her legs. When the water hit the spot, she moaned. Alice and Janet giggled.

After another two minutes she was moaning continuously. Her eyes were now closed, and there was a look of deep concentration on her face. When she started biting her lower lip, I knew she was ready to come. Her climax was quick, and strong. I could tell she was finding it difficult to keep quiet. It was thirty seconds before she finished. When she opened her eyes she got a pat on her shoulder from Janet, for a job well done. I looked at each of them, they were all grinning, then I said, "Thank you. Now I need to go, there is something that needs my attention." My Sister was the first to realise what I meant, but the other two quickly caught up with her. They were still laughing while I was walking away.

In the privacy of my bedroom I got my cock out. I had been tempted to take it out when I was in the Hot Tub, but that would have been reckless. As I played with it I thought about Hannah, and what she had just done. From start to finish, it had taken her less than three minutes. I managed it in under two.

After cleaning myself up, I went downstairs. Mother was alone in the living room.

"The girls seem to be enjoying themselves," then she added, "It must be because of OM." 

I almost stopped breathing, because of the shock, then I nearly laughed. Alice must have told her its real meaning, Optimum Mode, but what if she hadn't.

"Mother, I have changed the Hot Tub settings to OM."

"And what does that mean?"

"Orgasm Mode. You position your cunt so that it gets hit with the water jets, then you stay there until you have a big climax."

"That sounds wonderful, I must try it. Don't those nice people from Hot Tubs International think of everything?"

I didn't see much of my Sister, or indeed Mother or Father, until the weekend. I had exams in two weeks so I needed to study. I generally do OK, but it doesn't come easy to me, I always have to put the hard work in to get the results, but now that it was Saturday, I could take some time to relax.

I didn't get up until ten. There was nobody about. After a quick breakfast I went into the garden. Alice was standing near the Hot Tub, with a booklet in her hand. I got a quick smile, then she continued reading.

"What are you doing?"

"It needs a good clean. I am just working out what to do."

She then waved it at me.

"Step ten is clean filter D. It's shown on the diagram, but I can't find it. Do you want to take a look?"

I shook my head. If she couldn't find it, then there was no way I would be able to.

"Where are they?"

"Mother is shopping, then she is off to see that friend of hers."

"Father?"

"Golf."

"So they are not going to be back for a while?"

She then stopped reading. When she looked at me she smiled, then she said, "I suppose I can clean it later."

"Yes, much later."

In less than five minutes I was in the Hot Tub, waiting for Alice. This time the settings had been turned down, OM was not needed. My Sister was going to get an Orgasm, but it was going to be me who gave it to her.

She kept me waiting, it was another five minutes before she appeared. She had got into the habit, that when we were alone, she didn't wear her top. This time she was completely naked, she was carrying her two piece swimsuit over her arm. I had seen it all before, but I still stared at her. You can never get enough of a good thing. However, this time there was something different, she had shaved her pubic hair. She saw me looking.

Do you like it?"

"Yes, but why did you do it?"

She shrugged her shoulders, before saying, "No reason, I just fancied a change."

When she got in, she lay back, letting the water lift her legs up. I looked at her large breast bobbing about, topped by nipples that were begging to be sucked. I got a nice smile from her.

"Do you like Hannah?"

"Yes."

How can you not like a girl that gives herself a climax in front of you?

"I have her number, you should call her."

"Thanks," but was she testing me, should I have said no?

"Are you OK with that?"

"Yes," then she added, "As long as you save some of that nice cock of yours for me."

I just smiled, there would always be enough left over for her. 

When I reached for her tits, she moved towards me. My first suck on her nipple was hard and long, and she responded by moaning loudly. For the next couple of minutes I just concentrated on that nipple, the other one would have to wait its turn. After another few minutes I decided to switch, but Alice stopped me by holding my head.

"No, my cunt needs some attention."

"I can do both."

"Not with what I have in mind."

She then stood up. I thought she was going to bend over the side, so that I could fuck her as I had done before. However, this time she sat on the edge of the Hot Tub, with her legs wide apart.

"Would you like to lick me?"

She was in an uncomfortable position, and she was having to hold onto the side for balance, but I didn't care. I quickly put my head between her legs, but I did help her by reaching round and putting my hands onto her bottom, so that she wouldn't fall back.

I started by exploring her large lips. I had done that before with by fingers, but this time I was doing it with my tongue. When I got to her opening, I pushed it in as deep as I could. I loved the taste of her. 

"Go higher."

She wanted me on her clit. I was tempted to make her wait, but there was urgency in her voice. I lifted my head higher, then I probed for that little lump of hers. When I found it I flicked it with my tongue.

"That's good, but you can do better."

I did it again, but this time harder and faster. She moaned.

"Lower."

This time I hit the spot, either that, or she was having some sort of seizure. As I continued licked her, she continued moaning. Despite the difficult position she was in, she was obviously enjoying it. If only the Hot Tub sides were wider. Then I had a thought, I should email the makers.

'Dear Sir/Madam, I have recently purchased a Premium Plus Hot Tub from you. I am very happy with it, and it has provided me with many hours of enjoyment, but I would like to suggest something that would improve it. Please make the sides wider. I have found that they are OK when I bend my Sister over them, and fuck her hard from behind. However, when she sits on them so that I can lick her cunt, she finds it difficult to keep her balance. Another few inches would make all the difference. Yours sincerely, Peter Cropper.'

"Stop."

I was surprised, I thought she was enjoying it.

"If you don't, I am going to come."

I quickly raised my head. It was now time to fuck her.

"Bend over."

"No, fuck me in the water."

She was now sitting, with me standing in front of her. I then pushed her legs apart, and up. My hand was now on my throbbing cock, and I was trying to find her opening, hidden under the bubbling water.

When my cock pushed against it, there was a loud, "NO," from her.

I mutter a quick sorry, it was the wrong hole. I moved my cock higher. This time when I pushed, she stayed silent, until I was fully in.

"Hold my bottom and fuck me hard. For some reason I am a horny bitch today, it will not take me long to come."

I had to smile, she was always a horny bitch. 

Having sex under water was a new experience for me, and it took me a few minutes to get used to it, but after five minutes I was an expert. Alice had wanted it hard, and that was what she was getting. She wasn't complaining, so I must be doing a good job. 

At the start, she had said she wouldn't last long, but after ten minutes we were still at it. If she didn't come soon, I might, and that would spoil it. I then pushed her legs even higher, that made her moan louder. Good, it might do the trick, talking might help as well.

"Do you think Father will ever use the Hot Tub?"

"What?"

"He could share it with you."

"Yes."

I smiled, she now knew what I was hinting at.

"Would you like that, Father in with you?"

She gave her loudest moan, I responded by giving her my hardest stroke.

"So you would like Father in YOU."

"YES," then she went over the edge, climaxing with a ferocity I didn't know she had in her.

As she arched her back, I continued fucking her. Her head was now almost under water. Then her climax was over, but I was still trying to get mine.

"You have to stop."

Two strokes later I did. Holding her bottom tightly, I emptied my balls into her. When I had finished I felt drained. It was at least a minute before I pulled out of her, then another before we spoke.

"That was good," then I shook my head before saying, "And to think I didn't want a Hot Tub."

She smiled, then said, "You should always listen to your big Sister. She always knows best."

Her face then became more serious.

"What made you mention Father?"

"I thought it might help you along. Doesn't every girl want her Father to fuck her?"

She giggled.

"I must admit, I wouldn't say no, but I can't see it happening. He has always been the perfect gentleman towards me."

"But what about Uncle Francis?"

"What about him?"

She tried to keep a straight face, but it didn't last long. Eventually she stopped laughing.

"You must have heard the expression, Hung like a Donkey', well Donkeys have an expression as well, 'Hung like Uncle Francis."

She looked at me wide-eyed, I nodded.

"Yes he has a big one, a very big one. I have showered with him after tennis. He has at least two inches on me, possibly three."

"Wow, ten inches."

"Imagine that up your sweet little cunt."

Giggling, she said, "I am."

We stayed in for another five minutes, then I was ordered to get out. She wanted to shower, then she was going to drain, and clean, the Hot Tub.

After showering, I went to the kitchen and made myself a sandwich and a mug of coffee. When I had finished, I wondered if I should go and help Alice. No, she would want to be left alone. I would only get in the way. I also wondered what she would do about Uncle Francis, then I smiled, that was another easy one, sometime soon she would have him. I couldn't wait for her to tell me about it.

It was another hour and half before she joined me in the front room, and from the smile on her face I knew she had finished.

"Did you eventually find the elusive filter D?"

There was a quick shake of her head, then she said, "It doesn't exist. Well not on the Plus Model. I rang the service department, and they said it was a mistake in the manual."

Then, with a look of pride on her face, for a job well done, she left me to go and get some food. I then sat back in my chair, hands behind my head. I didn't just have a hot Sister, I had a clever Sister as well. My life could not get any better, but I had a nagging feeling deep inside me. This could not last. I knew that eventually she would find some handsome man, and that she would fall in love with him, and then all this would end. When would that be, a week, a month, a year? 

I didn't know, but what I did know is that until that happened, I was going to make the most of it!