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.

Wow, incest is common in the middle east and europe? I guess that helps explain why the rest of the world views them in disgust.

That makes you even worse than niggers.