Rule 34 Dev - 2017 animal_genitalia animal_penis anthro anthro_only balls black_fur black_nose black_skin canine canine_penis claws clothing erection fluffy fluffy_tail fur furry grey_background hand_behind_head holding_balls knot licking licking_lips looking_at_viewer male male_only mammal marjani mostly_nude no_humans penis red_penis shirt silver_fang simple_background solo tongue tongue_out torn_clothing vein were werewolf wolf|2681327792