Leviticus 20:12
As for a man who lies with his daughter-in-law, both of them shall be put to death; they have committed a perversion--their blood [is] on them.
Leviticus 18:15
You must not expose your daughter-in-law's nakedness; she [is] your son's wife; you must not expose her nakedness.
Leviticus 18:23
And you shall not {have sexual relations} with any animal, becoming unclean with it; and a woman shall not stand {before} an animal to copulate with it--that [is] a perversion.
Genesis 38:16
And he turned aside to her at the roadside and said, "Please come, let me come in to you," for he did not know that she [was] his daughter-in-law. And she said, "What will you give to me that you may come in to me?"
Genesis 38:18
And he said, "What [is] the pledge that I must give to you?" And she said, "your seal, your cord, and your staff that [is] in your hand." And he gave [them] to her and went in to her. And she conceived by him.
Deuteronomy 27:23
'Cursed be the one who lies with his mother-in-law.' And all the people shall say, 'Amen.'