rule 34 antlers ass balls bite brown body brown fur chimera claws cutie mark discord mlp duo equid equine female feral fingers fluttershy mlp friendship is magic fur genitals green body green scales hair hasbro hooves horn larger male male malefemale mammal membrane anatomy membranous wings my little pony neck bite open mouth penetration penis pink hair scales sex size difference smaller female spread wings tail tail tuft thebaseballfur toe claws tuft vaalkizuk vaginal penetration vaginal penetration wings yellow body yellow fur yellow sclera 9021335