Rule 34 Dev - 2019 5:3 anthro anthro_on_anthro balls blush bodily_fluids breathing canid canine canis closed_eyes dirty-canvas duo fox male male/male male_penetrated male_penetrating mammal muscular muscular_male nipples obliques pecs penetration penis sex size_difference slim small_dom_big_sub stomach_bulge sweat tongue tongue_out tree wolf|3657364664