Nor shall you mate with any animal, to defile yourself with it. Nor shall any woman stand before an animal to mate with it. It is perversion.
Leviticus 18:23
Surrounding context
18:22 You shall not lie with a male as with a woman. It is an abomination.
18:23 Nor shall you mate with any animal, to defile yourself with it. Nor shall any woman stand before an animal to mate with it. It is perversion.
18:24 "Do not defile yourselves with any of these things; for by all these the nations are defiled, which I am casting out before you.