My sister fantasy

100% fiction!

My sister and I had always been very close, even though I am four years older than her. We would always hang out together and watch DVDs or listen to music etc. I am 23 now and I have my own place but my sister is still living at home with our parents whilst she is at uni, she's 19.

Recently our parents went away for the weekend to celebrate their anniversary and knowing my sisters likeness for parties, they asked me if I would keep my eye on her and the house whilst they were away. I decided it would be easier for me to stay back at home while they were away so headed over there after work on the Friday.

When I got back to the house at about 6 o clock my sister was at home but was in the bathroom taking a shower. I decided to make myself something to eat so headed for the kitchen. My sister obviously hadn't heard me arrive because as I was coming back from the kitchen with my snack, I heard the bathroom door open and my sister singing to herself. As I got to the bottom of the stairs I was just about to call out 'Hi' to her but before I had a chance to speak she was already walking past the top of the stairs completely naked!! She didn't see or hear me and quickly dissappeared into her room.

I was completely shocked at seeing my sister naked and stood silently for a few seconds thinking about what I had just seen! I could also feel myself starting to get hard and remember thinking that it was wrong to be getting a hard on over my sister but also very exciting too!
Although I had only seen a quick glimpse of her naked body it was enough to make my cock twitch! The image of her lovely big pert tits and tight little ass bouncing sexily as she walked past was etched in my mind.

I decided that I wasn't hungry anymore so ditched the food and sat quietly for a while. Soon after the sound of the hairdryer had stopped I jumped up and called out to my sister as she was coming down the stairs. "Oh my God, you made me jump!" she said as she entered the room. She was wearing very skimpy White shorts and a little pink vest top with no bra and I could see her perfect nipples poking through! "How long have you been here?" she asked "Oh not long" I replied, not giving much away. I told her that I had come to stay while mum anddad were away and asked her what her plans for the night were. She said that she didn't really have any and asked if I wanted to do something. I suggested a movie and some takeaway and told her that I would go and pick some up.

As I was out in the car I couldn't stop thinking about my sisters gorgeous tits and ass and I started to get hard again, I couldn't get back to the house fast enough! I walked in with the food and bottles of wine and was delighted to see that my sister was still wearing her sexy little outfit. As she was walking around the kitchen I got a great view of her ass as she bent over to get a glass out of the dishwasher, her shorts rode up slightly and I got a glimpse of the bottom of her ass cheeks! She didn't seem at all uncomfortable showing off so much flesh and part of me wondered if she was doing it on purpose or if she was just too innocent to realise what she was doing. At one point whilst she was pouring the wine, she looked up and I think she caught me staring down her top at her amazing breasts! She didn't say anything but a split second later she gave her top a little tug up as if she was trying to cover up.

I spent most of the time that we were eating our food with a huge hard on and was seriously thinking about going to have a wank to relieve myself. I resisted and we moved into the living room to watch the movie, taking the wine with us. I sat down on the sofa and to my suprise, given that there were plenty of other seats to choose from, my sis came and sat right next to me and put her arm around my neck "Start the movie then bruv" she said. As I fumbled around for the remote, my sister said something that completely took me by suprise! "Have you got a boner?!" she giggled looking at my trousers. "what?" I replied in shock! "You have" she said "Youve got a boner you perv!" I had a quick look down and noticed the bulge in my trousers that was clearly visable! My sister started giggle even more as I tried to cover it up. She quickly changed the subject as the movie started to play and I thought nothing more of it although I was secretly wishing that she had taken the situation further.

As the movie went on we drank more and more wine and it wasn't long before we'd got through two bottles. I couldn't really concentrate on what we were watching as I kept on thinking about seeing my sister naked earlier on. By this point my sis had sprawled herself out on the sofa with her feet on my lap and I kept having a sneaky glance up and down her bare tanned thighs. Just then the movie started to get interesting as the couple on screen started to get it on! They were stripping of each others clothes and rolling around on top of each other until they were both naked and fucking each other in lots of different positions, it was a great scene and I got another boner! My sister started to giggle and turned to me and said "Looks like she's having a good time" "Yeah and him" I replied "I bet you're getting another hard on now aren't you?" she laughed "I am actually, yeah" I replied!

She let out a little yelp and put her hands over her mouth, her eyes widening! "Sorry" I said a little ashamed "Thats ok" she said "It doesn't bother me!" "Thats ok then" I said "Maybe I should just get it out and have a wank!" I went on, a little drunk by now. She laughed and said "Dont let me stop you" "Really" I asked, "Do what you want" she said looking down at my bulge. A few seconds went by whilst I thought this through until she broke the silence with "Arent you getting you're cock out then...oh, that's a shame!" "Do you really want me to?" I said, sitting up a little to get a better view of her. "Up to you" she shrugged. I decided to call her bluff and said "Ok then, I will" I put my hands on my belt and started to undo it all the time thinking 'Oh my God, is this really happening' My sisters eyes were transfixed on my trousers as I undid the top button and slowly pulled down my zipper.

I paused there and turned to look at her, she was smiling at me and said "Well keep going then" "You really wanna see my cock sis?" I asked "Yeah if you wanna show me?" she giggled. "Ok then" I said, "Here you go.." I raised my hips up a little and slowly pulled down my trousers and boxers, my throbbing cock and balls sprung out in all their glory! I looked at my sisters face as her jaw dropped and her eyes got wider, a huge smile spread across her face, "Its massive!!" she squealed "Thanks" I said. I can't tell you how turned on I felt sitting there in front of my sister with my erect cock out. She moved a little closer for a better view, kneeling right beside me. I started to touch myself. "Do you want to feel it?" I said "Can I?" she asked "Go for it" I told her.

She reached out as I removed my hand and slowly put hers around the base if my shaft, I could feel and see my bell end getting bigger "Oh my God" she whispered, " We shouldn't be doing this" she said, "Youre my brother" "What does that matter?" I said "Stop if you want?" "Hmm, no I don't want to" she giggled "Good!!" I replied "Shall I wank you off?" she said looking more serious and turned on now. "Hmm yeah that feels so good" she started wanking my cock real slow as if she was appreciating every one of my 8 inches. She started to do it faster and as I lay my head back, I could feel myself cumming already! "Stop" I said, she took her hand away,"Whats wrong?" she asked "Nothings wrong but I'm gonna cum if you keep doing that!" I was staring at her tits through her little vest, her nipples were rock hard by now. "Take your top off sis" I said "Youve seen my cock, I wanna see your tits" she smiled and sat up nice and straight "Ok" she said "Ready?" "Oh yeah, do it I wanna see your gorgeous big tits" she giggled and then took hold of her little vest and lifted up over her head, oh my god, her tits sprung out and I had my first proper look at them!

They were perfect, big, firm and perky with lovely big pink nipples! "Fucking hell, those are lovely" I told her. I reached forward and gave them a little squeeze "hmm.." she moaned. I couldn't stop groping at them and got on my kness for a better feel. I bent down slightly and took one in my mouth, it felt amazing and I sucked so hard that she let out a little yelp."Sorry" I said "it's ok" she replied, " I like it!" I began sucking again and as I did so I felt my sisters hand take hold of my cock again. She was ferociously wanking it and I was sucking harder on her tits, alternating between them.

After a few minutes she took her hand off my cock and said "Lets get naked" "Ok" I replied and we both stood up and started stripping, both giggling as we did so. As I stood there naked, I watched as she took down those skimpy little shorts. She revealed her nice trim little black bush and began to finger herself. "Oh my God, turn around" I said. She did so and I saw her fantastic little ass up close! It was amazing and I began groping at it. She turned round and asked me if she could suck my cock! "God yeah!" I said. As I stood there in the middle of the living room she dropped to her kness so that my cock was right in her face.

She looked at it for a few seconds and then, taking hold of the base with her right hand, she closed her eyes and slowly began sucking. It felt so good and I couldn't believe that I was having my cock sucked by my own sexy 19 year old sister! I ran my hands through her long blonde hair as she moved her head back and forth, sucking harder and faster. After a few minutes she stopped and stood up. "Are you ok?" I asked. " Yeah" she said. "let me fuck you" I said "I don't know" she replied "Isnt it wrong?" I told her not to worry and that I'd be careful. " Ok" she said "How do you wanna do it?" " I wanna fuck you from behind" I said "Yeah, I love it like that" she replied.

She walked over to the bookshelf and put her hands on the shelf, sticking her ass out and looking over her shoulder. I couldn't get there quick enough and as I approached her she smiled and told me to give her a good hard fucking! I stood behind her as she spread her legs slightly and began to push my cock against her dripping pussy. She moaned as I started to guide it in, nice and slowly until it was all the way in up to my balls. She gasped and moaned "Oh yeah, that feels so good, fuck me, fuck me hard!!" oh my god, I started pounding her as hard as I could, looking down at her perfect little ass shaking as I plowed into her!

She was moaning so loudly and shouting out "Fuck me, fuck me, oh yeah fuck me harder I'm gonna cum!" the bookshelf was shaking and banging against the wall, books were falling off around her and all I could hear in between her gasps was the loud slapping off my balls on her ass. " Im cumming I'm cumming!" she shouted "Oh yeah that feels so good!" I could feel her pussy tightening and pulsating as she came all over my cock. Now it was my turn, I could feel myself about to shoot my load! " Im gonna cum" I panted "Oh yeah give me your spunk" she shouted, "Fill my pussy!" I fucked her faster and faster until the point of no return, "Oh yeah, oh yeah!!!!!" I shot my hot spunk right up inside her and she reached round and squeezed my balls until every last drop was out. We both fell to the floor in each others arms all hot and sweaty and covered in each others juices.

My heart was racing and we were both panting as we lay there. My sister turned and loomed at me " That was amazing" she said "Youll have to come round more often!" we both laughed and held each other, my hand resting in her ass and her tits pressed against my chest. We spent the rest of the weekend fucking all around the house until our parents came home on the Sunday. " Nice weekend?" they asked us "yeah it was ok" we both said, looking at each other and smiling...