Paul probably does not see the authority in the US Constitution to ban sexual behavior. That power is explicitly given to the states via the ten amendment. If bestiality is a problem in your state write your state reps and no doubt something will be done about.
Ron Paul voted to force homosexuals into the military. A federal law. Forcing the military to accept flagrant mentally ill sex perverts. NOT a “states rights” issue at all. So Paul actually likes using the power of the federal government to force sexual perversion on the military. What a disgusting hypocrite he is!
In other words, Paul thinks that it's perfectly all right for states to endorse bestiality, pedophilia or whatever form of perversion they want. What Paul ignores is that when a couple of "married" sodomites move to another state with the goat they share a bed with, a federal issue is created regarding whether their "marriage" and goat fetish is recognized in that state.
Paul will go along with ANYTHING to continue to enjoy the support of his perverse followers.