Rule 34 Dev - animal_genitalia animal_penis anthro ball_tuft balls big_balls big_penis canid canine canine_genitalia canine_penis canis digital_media_(artwork) erection fluffy fur genitals girly kipwolf knot male mammal nude penis sheath simple_background sitting solo spread_legs spreading taintedstar tuft vein veiny_knot veiny_penis wolf|9490967816