Leviticus 20:12
If a man has sexual intercourse with his daughter-in-law, both of them must be put to death. They have done a disgusting thing and deserve to die.
Leviticus 18:15
Never have sexual intercourse with your daughter-in-law. She is your son's wife. Never have sexual intercourse with her.
Leviticus 18:23
Do not have sexual intercourse with any animal and become unclean with it. A woman must never offer herself to an animal for sexual intercourse. It is unnatural.
Genesis 38:16
and asked her to sleep with him. She asked: What will you give me if I do?
Genesis 38:18
What do you want? he asked. The ring on that cord around your neck, she replied. I also want the special walking stick you have with you. So he gave them to her. They slept together and she became pregnant.
Deuteronomy 27:23
Cursed is he who indulges in sex with his mother-in-law. And all the people say: Amen.