How about sex with animals? How do Libertarians feel about that?
Before I answer your theoretical post, let's establish how sick (perverted) the Libertarian movement is by wanting to legalize (and keep legal) things like homosexuality, incest, recreational drug use, prostitution, suicide, etc. etc. etc.
Welcome to reality cellist: Your godless doctrine destroys lives and nations and I'm not going to allow you to ignore that fact.