rule 34 animal genitalia animal penis anthro bracelet earth pony equid equine equine penis erection fan character ftm crossgender genitals gold metal gold bracelet gold jewelry gold piercing gold ring gold tooth golden keylime oc hasbro jewelry male mammal medial ring my little pony penis piercing pony pose redxbacon ring rule 63 simple background sitting solo male visible ribcage visible ribs white background 5679483