Leviticus 18:13-15

¹³You shall not uncover the nakedness of your mother's sister, for she is near akin to your mother.

¹⁴You shall not uncover the nakedness of your father's brother, and you shall not go in to his wife; for she is your relation.

¹⁵You shall not uncover the nakedness of your daughter-in-law, for she is your son's wife, you shall not uncover her nakedness.