rule 34 ambiguous penetration anthro areola big breasts blush breasts collar girl position domestic cat duo ear piercing ear ring equid equine eyebrow piercing facial piercing fan character felid feline felis female feral fetlocks from front position green areola green hair green nipples hair hasbro hi res interspecies labret piercing lip piercing male mammal mauve background my little pony nipples on bottom on top pegasus penetration piercing pony reins ring piercing sex size difference wings zachc 8711395