Rule 34 Dev - abdominal_bulge anal anal_penetration animal_genitalia animal_penis anthro arm_support ball_tuft balls bed big_bulge big_knot big_penis blush bodily_fluids bulge canine_penis clenched_teeth cowgirl_position duo erection eyes_closed from_front_position furniture genitals huge_penis inside knot leaning leaning_back looking_pleasured male male/male moon muscular muscular_male muscular_sub musk musk_clouds neck_tuft night night_sky nude_male on_bed on_bottom on_top penetration penis penis_size_difference sex spread_legs spreading submissive submissive_male sweat sweaty_balls sweaty_body sweaty_face sweaty_genitalia sweaty_legs teeth tuft vein veiny_knot veiny_penis anonymous_director canid canine canis mammal wolf|54101024