How many people are sleeping with a relative?

As far as i know ancient christians used to shag their family members too. The whole practise became taboo because if you do BREED with family(close family) at least one of three of the kids will be abnormal,in one way or another.
I dont think the problem is sex with family. I just dont think you should breed with them.
And im pagan, but i think the christians believe that adam/eve 's kids shagged the men from the land of Hod, or maybe Nod. I don't know. Speak to a priest.

I think all the incest taboo is based on religion and cultural stiffness.
I mean, long ago, people in the ancient Egypt used to marry their sisters and mothers to keep the royalty with in their family, but after religion came, it was all forbidden and all that crap. Even in some rich families back in the 1800s people would marry their cousins so they would keep the money with-in their family.

I mean point me one problem with marrying your sister, I mean the having retarded mutant kids are all a myth and lie, (yes go do your research).

I would do it with my mom she is not my type nor hot, but I did it once with my sister, nothing bad happened, we both enjoyed it.

Hack, based on religion, When the first two people who where on earth were Adam and Eva, which means they must have had children, how did their generation move on? They married their sisters, or else, the whole thing is flawed.

Meh... as long as both are consenting, fuck it.

I'm sleeping with my nephew and as long as we both over 18 its not against the law and ur right there's a lot of ppl doing it do research u will see

Look, if i had a sister, i would totally be there, cause i get turned on by that stuff. But if i did actually have a sister in real life, like seriously, i suppose it would be a totally different story. I couldnt picture having sex with my mum (urgh!) but i occasionally get aroused by stuff like hentai which features similar themes.

Like you, I think incest is probably more common than beastiality but from a purely logical standpoint, neither of us can argue it the way you did. Your original premise was that you "think" incest is more normal. In your second premise this has leapt from being a thought of yours to now being true. There was no step which proved it true.