I'm OK, You're NOT...
You may ask, Well Meg, if there were 6 of you, how do you know your parents never caught any of them having sex?"
Not an unreasonable question. My family is stereotypically Irish but when someone was being punished, you'd think we were Italian. The whole house erupted in screams, crying and father's intimidating barking. And I am quite sure that if any of my brothers and sisters had been caught trying to pull off some sort of taboo bursting, in addition to the initial blitzkrieg my Dad would have given one of his 2 hour lectures that made me wish he'd just beat the hell out of me and send me to my room. I never listened to what he was saying, all that went through my mind was, "God...please shut him up."
Like my parents, I don't think it should be necessary to tell people that siblings shouldn't have sex. But, since Hollywood director Nick Cassavetes is out there spreading the message that sex between siblings should be OK...just like sex between members of the same sex...maybe I'm wrong. I doubt that there will be enough incestuous siblings to form a decent parade so I have to say that incest is not at all like gay sex. The sheer numbers of gay people lead me to believe that homosexuality is a trait, not an acquired taste. Even a gay man knows better than to screw his brother.
I never thought I'd come across an article that defended a non-incestuous society and I never thought it would be necessary to write one in a post Pharaoh world, but I guess it is. And, that task fell to one Dr. Keith Ablow. Here is his defense of the philosophy that says you don't have sex with family members: