Leviticus 20:16-17

20:16 If a woman approaches any animal to have sexual intercourse with it, you must kill the woman, and the animal must be put to death; their blood guilt is on themselves.

20:17 “‘If a man has sexual intercourse with his sister, whether the daughter of his father or his mother, so that he sees her nakedness and she sees his nakedness, it is a disgrace. They must be cut off in the sight of the children of their people. He has exposed his sister’s nakedness; he will bear his punishment for iniquity.