Incest

Someone on /b/ keeps claiming that we have genes that prevent us from being attacted to our siblings. How true is this? I for example find my sister extremely hot. I masturbate to her pictures all the time and would fuck her without a though given the chance.

>>16
Did it lead to anything? If yes, please tell us how you fucked her hard. I get off on this.

>>18
I'd disagree. Seeing as how >>17 is most likely retarded himself it does not come as a suprise that his kids are too but he should not blame this on incest