Rule 34 Dev - 2016 animal_genitalia animal_penis anthro balls big_balls big_penis black_fur book brown_fur brown_hair canine canine_penis chair claws cum duo english_text fur hair huge_balls huge_cock inside knot male male_only mammal masturbation navel nude penis signature sitting smilebomb solo_focus spread_legs spreading text toe_claws vein|2469956608