rule 34 2021 animal genitalia animal penis anus ass balls blue tail close up cutie mark darkened genitalia darkened penis dock dripponi english text equid equine equine penis erection fan character feral flared penis fur genitals hasbro hi res hooves lying male mammal medial ring my little pony noxy equinox on back penis perineum pony presenting presenting anus presenting hindquarters puffy anus purple body purple fur quadruped signature solo spread legs spreading text 4683824