rule 34 ambiguous gender anthro big dom small sub bodily fluids bottomless bovid bovine brown background brown body brown hair cattle r claws closed eyes clothed clothing cunnilingus digital media artwork digital painting artwork dominant dragon duo ear piercing female femaleambiguous grabbing head green body hair hi res hoodie hoodie only hybrid jewelry leg grab mammal moan mouse murid murine necklace oral piercing ring rodent sex sharp claws sharp teeth simple background size difference small tail sound effects steam teeth topwear topwear only unknown artist vaginal penetration white hair 7120162