Rule 34 Dev - 2016 animal_genitalia animal_penis anthro anthro_only anus armpits ass ball_tuft balls black_nose brown_fur canine canine_penis chest_tuft claws colored_pencil erection fur furry grin hairy happy hi_res hindpaw knot lying male male_only mammal no_humans nude on_back open_mouth pawpads paws penis perineum pinup pose presenting presenting_hindquarters pubes red_penis sharp_claws sharp_teeth simple_background smile solo spread_legs spreading tawnyfluff teeth traditional_media_(artwork) tuft were werewolf white_background wolf|2538742704