15If a man lies carnally with an animal, he must be put to death. And you are also to kill the animal.
16If a woman approaches any animal to mate with it, you must kill both the woman and the animal. They must surely be put to death; their blood is upon them.
— Leviticus 20:15-16

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Article by Joe Beam

So what does the Bible say about all of this? Joe Beam addresses what is Biblically appropriate and not appropriate for Christians in their sexual relationships.