rule 34 animal crossing animal genitalia anthro ass assassinfenrir backsack balls black eyes black nose book bottomless canid canine canis clothed clothing colored digital media artwork eyeliner fang animal crossing fully sheathed fur genitals grey body grey fur hi res looking at viewer looking back looking back at viewer makeup male male only mammal nintendo shaded sheath simple background sweater tail topwear topwear only white body white fur white muzzle wolf 8546819