Quote:
Originally posted by Shape Shifter
And incest and bestiality?
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I fail to see an analogy between consensual adult polygamy and a person having sex with an animal. An animal cannot consent to the sex.
As for incest, if we are again talking about consenting adults here (not child molestation or stautory rape) one man and one woman, given biology what it is, there is a risk that a child would be produced. If a child is conceived, given genetics what they are, the risks of birth defects are quite high if the two people are brothers-sisters, father-daughter. This risk is many times higher than with people who are not related to each other.
This is the reason that incest is disfavored by society. The repulsion most of us feel at the thought of having sex with a close relative was no doubt a characteristic one of our long dead ancestors was born with. The process of natural selection favored our ancestors' survival since this person was less likely to have sex with close relatives and his or her children were less likely to be born with birth defects.
BTW - in several states, like TN for instance, first cousins can legally marry each other.
