I am a 15 year old boy, I just had sex with my 17 year old brother. I have never thought of homosexual thoughts, or incestuous, it just happened, we both have girlfriends. I still can't believe it happened, he gave me a bj, and I gave him anal, I don't even have to ask because I know it isn't normal. But, I admit it was awesome, my brother and I obviously screwed up.