My Girlfriend's Sister

100% fiction!

It was December of 2010. I had gone over to Jess, my girlfriend's house for a little christmas party and to exchange gifts with her and her family. I was planning on spending the night over her house as I do every holiday. When I arrived, I took my bag and went upstairs to put it in her room. Her 18 year old sister Jenna also was upstairs in her room at the time, so i gave her a hug and said hello before going back downstairs. Her long blonde hair whipped all over my face and filled my nose with its fruity smell. Boy did she smell nice. She looked very sexy too!

When I got back downstairs with the rest of the family they were all having dinner. There was ham, mashed potatoes, gravy and salad. I was starving so I helped myself to two servings. After dinner, we went into the living room to exchange gifts. I had gotten a nice watch from my girlfriend and a bunch of clothes and movies from her family. I was having a really good time! My girlfriend had gotten thirsty after eating all the food so she asked me if I wanted a drink. I replied no and she got up to go get herself a drink in the kitchen. When she left her sister came up behind me and whispered in my ear, "I want to fuck you". I immediately got chills down my spine and got very excited. I turned around and asked her, "are you serious! when?" She whispered back to me, "tonight, when everyone is sleeping". I nodded at her and said "Yes". Because I saw my girlfriend coming back into the room. Jenna winked at me and walked away.

The family preceded to watch a movie together for the next couple hours. We watched the first Harry Potter movie on her little cousins request. The whole time the movie was on, I could not help but keep looking over at Jenna. She had this tight shirt on, making her C cup boobs look even bigger, and a tight black short skirt on. She has such beautiful legs I couldn't help myself but to keep looking. She caught my eye and gave me a wink and blew a kiss. My heart skipped a few beats when this happened. I could not wait for tonight! Just as I thought I wouldn't be able to wait any longer, the movie ended and everyone left to go home. I went upstairs with Jess to go to sleep. Jenna was up the stairs right behind us and went into the bathroom to brush her teeth. I told Jess i would be right in but i needed to brush my teeth first too. When me and Jenna were finally able to talk, she said "Alright, I'll be up for a while.

When Jess falls asleep, sneak out of her room and come into mine. I'll be waiting". She grabbed my cock, winked at me and walked into her room and shut the door. At this point i couldn't wait!!!

I finished brushing my teeth and went into Jess' room to go to bed. We got into bed, and turned the lights out. She asked if I wanted to have sex and I said, "Not tonight babe, I'm just too tired from the day". She said Ok and said goodnight to me and we both started to go to sleep. I was just laying there staring at the wall imagining what fun I was going to be having in just a few minutes. Jess falls asleep fast so i knew it wouldn't be too much longer before I could get up and get into Jenna's room. I looked over at Jess a few minutes later and saw that she was sleeping.

She was even twitching a little bit so I knew she was in a deep sleep. I slowly got out of the covers and out of bed. I looked back at Jess to make sure that she didn't wake up. I was in the clear. I opened the door slowly and walked out into the hallway. I couldn't see much because it was so dark. I found my way to Jenna's door and stopped in front of it. My heart was pounding because I was so excited. I have always wanted to have sex with Jenna since I started dating Jess 3 years ago! I opened the door to let the fun really begin!

I walked into her room and she was laying on the bed with very sexy red lace bra and red lace panties on. The bra was pushing up her big boobs and making them firm and delicious looking. She waved me over to her with her pointer finger and crawled towards me across the bed. She bent me down and gave me the longest, wettest french kiss ever. Her tongue felt so smooth warm in my mouth rubbing against my tongue.

While she was kissing me, she was grabbing my cock through my jeans. It was getting bigger and harder by the second. When I finally thought it was going to break the zipper on my jeans, she unzipped and unbuttoned my pants and dropped them to the floor. She then lowered my boxers down slowly to reveal my throbbing rock hard 8 inch cock. She started stroking it with her hand and looked up at me with a very sexy smile on her face that said to me "Oh we are going to have fun tonight!".

She slowly started to lick the head of my dick to tease me and get me even harder and more excited. She slowly started to suck on my cock, putting more and more in her mouth every few seconds. Eventually, she was taking all 8 inches in her warm, wet mouth. Her saliva was dripping down my cock and it felt so warm and wet. She started to deep throat my entire cock and was gagging on it. It felt so good I thought i was going to cum right there. I held it in somehow and told her to lay on her back. She said "mmmmm alright". and layed down on her back with her legs spread wide open at the edge of the bed.

I bent down and slipped her panties off slowly revealing the smallest tightest pussy I had ever seen. I couldn't believe that this moment was finally happening. I started to rub her clit and I could see it in her face that she was enjoying it. I started to rub it a little faster and stuck a finger into her dripping wet pussy. She started to moan a little bit. When i had teased her enough, I started to slowly lick her clit instead of rub it. She started to moan louder when I did this. I kept fingering her while I was licking her clit faster and faster. She was moaning pretty loud now.

This got me so excited and made me keep licking faster and faster and moving my finger in and out as fast as I could. She started to moan very loudly and told me she was going to cum. I kept going and she said "I'm a squirter, take your finger out fast and stop licking at the same time when you feel pressure building up". I kept eating her out and finger fucking her until i felt a pressure build up inside her vagina. I ripped my finger out of her and stopped licking. She moaned very loudly and squirted a stream of fluids onto my chest. It felt so warm and amazing. I loved it! Her legs were shaking and she had a smile of pleasure on her face.

I couldn't help myself but to go up to her face and start kissing her. I unhooked her bra and took it off to reveal her perky C cup tits with very nice small nipples. I started to suck on the nipples to get them nice and hard and sensitive. She was also enjoying this so I rubbed her pussy at the same time. She was moaning a little and I could tell I was teasing her. I kept sucking on her tits because they just tasted so good in my mouth! A few minutes of this and she told me she couldn't take it anymore. "I cant take it! Shove that cock in my pussy now!". I couldn't say no to that, so I rubbed the head of my cock against her clit and pussy lips to get it a little wet. I slowly started to slide it in her pussy.

It was so tight and so wet. It felt amazing when I got it fully in her. I started to thrust slowly in and out of her. The inside of her felt so smooth and warm that it was almost to much to take. I was thrusting harder and harder, making her tits bounce up and down. She was moaning and rubbing her nipples to increase her pleasure. I kept thrusting very deep and at a steady speed to really get her going. I would slow down and pull my cock out every once and a while to tease her and give her more pleasure when I put it back in. I loved watching her amazing tits bounce back and forth every time I thrust in and out of her.

After about 6 minutes of missionary, I told her to get on her hands and knees. I pulled my cock out of her and let her turn around and get into doggy position. She had such a nice big juicy ass. It was amazing! I got behind her and bent down to lick her pussy to taste her dripping juices. They tasted so good! I got back up onto my knees behind her and inserted my cock. I didn't waste any time in there and began to thrust very fast into her. She was moaning so loud I was sure the entire house could hear us. I thought, "Oh well, I'm not stopping for anything". I kept thrusting and stimulating her vagina even more. I bent over and grabbed onto her tits for leverage so I could thrust in and out faster and faster, harder and harder.

The sound of her ass slapping against my pelvic area kept me going. She was moaning so loud and I could feel her vagina tightening up around my cock. I pulled it out very fast and she started to squirt all over my cock and the bed. She fell to the bed in pleasure and orgasm. When she recovered herself, she got up, pushed my onto my back and came up to my face and sat on my mouth with her pussy. I loved it! I kept licking and licking and making her feel good. All the dripping juices filled my mouth and tasted so good. I swallowed them all before she got up.

She winked at me and moved down to my cock. She sat down on it and slid it slowly into her. She was using my chest to brace herself as she started to shake her ass up and down on my cock. This felt so good that I thought I was going to cum within minutes. She kept riding my cock like a pro. She had such endurance it was amazing. She was moaning very loud again because she was taking the cock so deep into her vagina so fast. In and out, in and out. We were both having so much pleasure we didn't even try to quiet down. After about 7 minutes of her riding me, we heard a squeak and noticed the door to her room start to open. We looked over at the door and Jess was standing there staring at us. Jenna just kept on riding my cock and said "Sorry Jess". and turned her head back around to me and kept bouncing up and down. I stared back up into her face and smiled.

This was the best sex I have had in my life. She told me when I was ready to cum, to just let it fill her up because she was on the pill. I glanced over at the door and realized that Jess was still standing there. I looked back at Jenna and started to feel the cum start to rush towards the tip of my cock. I said to her, "I'm going to cum!" and as soon as I said it, my cum started to pour out of my cock and fill up her pussy. She kept riding me as hard and fast as she had been the whole time. I kept cumming for about 20 seconds, filling her up with my fluids. When I was done, she got off my cock and sucked off all of the left over cum and pussy juice.

When she was finished, she gave me a kiss and said "You're amazing, we should do this more often". I replied to her "Oh yeah, we should do this whenever we can!". We planned to get together next week for some fun sex. I got up and went back into Jess' room with her. She was a little mad at me but after we talked, she said to me "You know what, I guess since she's in my family I'm ok with it. As long as its not another girl, you can keep fucking my sister". I gave her a giant kiss and a hug and thanked her. This was the best deal I could have asked for. 2 beautiful girls both wanting to fuck me all the time. I felt so good and had the best night of sleep I have ever had.