A story from my teenage years. Names have been altered, but the rest is true.
This takes place almost 10 years ago. At the time I was living with my father, his girlfriend, her daughter, and my little sister. This concerns the daughter Bri, who was for all intents and purposes my step sister I suppose. I was 15 years old and she was 14.
We lived in a small house with just two bedrooms. My father and his girlfriend had one bedroom and the two girls had the other. So I was relegated to a small bed just off the living room. Needless to say, privacy was an issue. This, combined with the fact that I was living in a house with two teenage girls, and I didn't have a girlfriend at the time, caused quite a bit of sexual tension on my part, along with a difficulty in relieving said tension.
Bri and I got along well enough at times. Though sometimes we fought like the typical brother and sister. I had never thought about her in a sexual way at all up to this point, and it should be noted that at this time that while I had lost my virginity about six months prior, my experiences with girls was pretty limited. But onto the fun part of our story.
One late night, I was up late sitting in the living room watching TV, when Bri came in and sat down next to me on the couch. She said she couldn't sleep. We watched TV for a little bit and talked about normal stuff. After a bit the show we were watching ended, and Bri picked up the remote and started to flip through channels. After a few minutes she stopped on one of the movie channels(Cinemax I think) and on that channel was soft core porn, which showed a couple having sex.
I thought that she would change the channel rather quickly, but she didn't. Instead she put the remote down and started to watch it. A minute or so went by before I looked over at her and said 'You know, you don't have to watch this on my account.' Because as far as my experiences went, girls didn't watch porn. So imagine my shock when she answered with 'I'm not.'
At this point, I'm getting very hard and an obvious tent was forming in my shorts, that I was trying to hide. I looked over at Bri, who was also wearing very short shorts and a tank top, and noticed she wasn't wearing a bra. Bri had small boobs(about an A cup at the time I'd guess), but even then I could see that her nipples were hard. There was also a slight musky scent in the air, obviously coming from her wet pussy.
We started making awkward jokes about the material on TV that eventually lead to playful jabs at each other and that lead to playful poking and pushing. The roughhousing got more intense until both of us rolled off onto the floor. Bri landed on top of me and my hard on was rubbing up against the crotch of her shorts. Bri let out a few gasps and moans and she started to dry hump me. As I was on the verge of cumming all over the inside of my shorts she jumped off me and stood there. The very first thing I noticed was a wet stain on her crotch.
'Ok' she said, while breathing very heavily 'It's obvious we're both very horny. Neither of us gets any chance to masturbate and we both need a release.' I was floored. 'You masturbate?' I asked. Because at the time I didn't think many girls did that kind of thing. 'Yes she said. But I haven't gotten to much lately since you and your sister moved in a few months ago.' The thought of Bri laying in bed rubbing herself to orgasm about made me shoot my load then and there. 'So what do you want to do?' I asked.
'Let's just take care of this. No sex. And this is a one time thing, understood?' she said. 'Absolutely.' I would of said damn near anything, just to keep the situation heading in the direction it was heading.
Bri then sat down on the couch and slid her shorts off. It was then I found out she wasn't wearing any panties either, as I was treated to a glistening smooth pussy with just a hint of pubic hair. Bri parted her pussy lips very slightly and began to rub her clit with two fingers. I sat down next to her, took my shorts off, and started jacking off furiously. I couldn't take my eyes of Bri's fingers as they rapidly moved side to side. The sound of her wetness sloshing about as she squirmed on the couch brought me to climax within just a few minutes. I grunted as several streams of cum exploded out of my cock and landed on my stomach and chest. A few moments later, I heard Bri very softly squeal(remember, our parents were asleep just two rooms over) and raise her hips off the couch as her own orgasm washed over her. After she settled down, we both sat there panting, covered in our own juices.
We talked a little more after that, showered(separately) and then went to bed. Though nothing like that ever happened again between us. 10 years later, Bri's married and I have a wonderful girlfriend(look for her story at some point!) but this was one of the first sexual experiences I ever had, and one of the more memorable ones.