Leviticus 18:12-17

12Never have sexual intercourse with your father’s sister. She is your paternal aunt.

13Never have sexual intercourse with your mother’s sister. She is your maternal aunt.

14Never have sexual intercourse with the wife of your father’s brother. She, too, is your aunt.

15Never have sexual intercourse with your daughter-in-law. She is your son’s wife. Never have sexual intercourse with her.

16Never have sexual intercourse with your sister-in-law. She is your brother’s wife.

17Never have sexual intercourse with a woman and her daughter or a woman and her granddaughter. They are related. Doing this is perverted.