Incest is not legal, bozo. Name one state that doesn't have a law banning the practice. Bestiality is also illegal. Show me one state that doesn't have a law banning it. The problem with you idiot libertarians is that you want to totally skip over the 10th amendment to the constitution. The states can declare illegal anything that they want, as long as it doesn't go against the Constitution. Your "equal protection" clause does not prevent the states from declaring such practices illegal for the simple reason that these practices are not protected by the Constitution. Your "logic" is based on ignorance, not fact. Do some reading, why don't you - and I don't mean the imbecile thoughts of fellow libertarians who also live in a fantasy world.