rule 34 2019 animal genitalia animal penis anthro balls black pupils blue background blue balls blue body blue fur blue horn blue sheath blush cartoon eyes colored digital media artwork digital painting artwork equid equine equine penis equine tail erection fauxhawk feral flared penis friendship is magic front view fur genitals glistening glistening eyes gradient penis green eyes hair hands on own crotch hasbro high angle view hoof hands horn iris kitekite looking at own crotch looking at own genitalia lying male male only mammal medial ring monochrome fur my little pony on back orange hair orange tail penis pony presenting genitalia prick ears pupils shaded shadow short snout simple background soft shading solo spread legs spreading tan penis three quarter view toony unicorn unicorn horn urethra wide eyed young 5678713