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.

i only hugged her so far i said.

go read the damn Quran, most middle eastern countries follow that.

and uk law, where we live, allows it.