rule 34 abs anthro artie balls big penis big tail blue eyes canid canine canis chest tuft claws crotch tuft domestic erection evil grin fangs fur genitals grey background grin hair hand on hip hi res invalid tag light lighting looking at viewer male male only mammal muscular muscular anthro muscular male naughty face navel penis pose signature simple background smile snout solo standing tuft variri white body white fur white hair 4111311