When I turned 9 I developed strong sexual urges. I would jack off a lot. I was very shy with girls my age so I took notice to my little sister as a source of sex. I had many many opportunities with us alone a lot because of our parents work schedules. I knew it was wrong but I could not stop my urges. One day I woke up so horny that I just got into her bed,got on top of her and dry humped the hell out of her. I was nude,she wore an oversized night shirt with panties. I would press my hard on right against her pussy so close to actual penetration. I would do this for five to six minutes until I would shoot large wads of sperm on her. Then I would hop off and we would go about our day as if it didn't happen