rule 34 animal genitalia animal penis anthro artist name ballbusting black hair blue eyes blue markings blue nose blue pawpads blue spots blue tail blush blush lines bottomless bucklucky canine genitalia canine penis clothed clothing cock and ball dark body dark fur dotted background facial spots front view fur genital genitals glistening glistening hair grey body grey fur grey tail hair lying male markings mouse trap mouth closed on back pattern background pawpads penis red penis sheath simple background solo spots spotted face spread legs spreading tail topwear trap contrivance 7730250