Rule 34 Dev - 4_toes all_fours anal anal_sex animal_genitalia animal_penis barkwoof bite black_fur black_nose brown_fur canine canine_penis claws closed_eyes doggy_style duo erection facial_scar feral feral_on_feral from_behind_position fur german_shepherd green_eyes knot male mammal multicolored_fur notched_ear nude open_mouth paws penetration penis quadruped scar sex simple_background teeth toe_claws toes tongue tongue_out two_tone_fur white_background white_fur wolf yaoi|3090706144