Im 21 and my sister is 19 and we have been sexually active for about 10 years now. When we were very little and would take a bath together we would touch eachother not knowing really. When I was 13 and she was 11 we first made out and she gave me head and I couldnt cum yet but she still made me bust. We lost our virginities to each other and we have done just about everything you can do with each other. I have jizzed inside my sister many times. We are both back at home for Christmas break right now and we got a big snow storm and the power went out so we fucked late into the night and yes i did bust in her.