When I was 12 I went over my best friends house a lot and he had a really hot sister. She always walked around the house in panties and a bra that didn't really cover anything. One night she walked past nude thinking i was asleep but I was awake and just stting there I saw her, see me, see her but she hurried off to her room. I let everything settle for ten or fifteen minutes then I snuck into her room and she was asleep so I walked up to her bed and her quilts werent covering her body at all so I thought she is close enough to the side of the bed I might just cum on her. So I was nude by this point and jerking away over her body and just kept feeling her big soft tits until I was ready to cum I leant over her pussy and spread my cum up and down her pussy. What I disnt realise was because I was playing with her tits she was getting pleasured and woke up so she saw me wanking over her and playing with her tits and knew I came on her pussy. But non of us said anythjng till the next time I slept over his house when I was on the couch sleeping she came out nude and woke me up by starting to jerk me off slowly. As I awoke she kissed me and started to suck so I just layed there and let it happen. When she was dripping wet she wanted me inside her so I did what she wanted from me. I wasnt any good at sex because it was my first time but my cock made up for it so she started to speed up and I was close to cumming so I didnt know what to do and I just pulled my cock out her pussy and shoved it in her mouth until I came and she swallowed every drop. Till this day no one but us knows.