This happened a long time ago. About 49 years ago in fact. One night during the summer my parents had gone out somewhere and my little sister was spending the night at her friends a couple houses down the street. I was sitting in a chair in the living room watching the tube when my big sister, 16 at the time, I was 14 came out from her shower, wrapped in a robe. She sat down on the couch and started watching what ever dumb movie I was watching. Pretty soon she laid down there and fell asleep. She's always been a restless sleeper so pretty soon her robe had loosened and I could see her pussy peeking out. Being an always horny 14 year old male my cock was instantly rock hard as soon as I noticed. The layout of our living room was such that I was looking right at her slit. I started rubbing my hard on over my jeans. She moved again and her perky 36C tits became exposed. I could feel my tighty whities becoming soaked from my precum so, since she was asleep I opened my jeans and pulled my very hard cock out and began jerking it. A couple minutes later I stood up and was furiously jerking when I knew I was going to cum, hard! I pointed away from her and started shooting ropes all over the floor. I quickly put myself away and sat back down.

Did she know what happened? I dunno. She woke up about 5 minutes later and sorta giggled and covered back up. But, during that time I kept on looking at her pussy and tits and was still rock hard, but I also noticed how moist her opened slit was so I think maybe she knew.

Anyway, she went to bed and I pulled my jeans and underwear off and jerked my cock to 2 more orgasm's thinking about what I had seen.