If a man lies with a male as with a woman, both of them have committed an abomination; they shall surely be put to death; their blood is upon them. If a man takes a woman and her mother also, it is depravity; he and they shall be burned with fire, that there may be no depravity among you. If a man lies with an animal, he shall surely be put to death, and you shall kill the animal. If a woman approaches any animal and lies with it, you shall kill the woman and the animal; they shall surely be put to death; their blood is upon them.


Leviticus 20:13 - ESVBible.org - If a man lies with a male as with a woman, both of them have committed an abomination; they shall...

Sleeping with your wife AND her mother must have been popular in the old days. If the mother is a MILF.............THAT'S HOTT!