Quote:
Originally Posted by SomeRandomGuy  One thing I have not seen mentioned is incest between people who do not know they are related. Consider examples of adopted children who do not know their parents and/or siblings. Another situation where this could easily arise is half-siblings, especially those with fathers who fathered many children with different women and never had anything to do with the kids. Would sex between the people in these situations be the same as between siblings or parents/children or knew they were related? |
I've also heard (all of what I'm talking about here is stuff I remember from Anthropology in college
) that the aversion comes from growing up in the same household, so siblings, etc who have never met each other will not have the same aversion that those who've grown up together will.
Here's an article about a couple who were twins, separated at birth, who, with that unknown to them, met and married later in life:
BBC NEWS | UK | Parted-at-birth twins 'married'