FURVERT!

4:5 anal animal_genitalia anthro balls biped canid canine canis comic dialogue domestic_dog duo english_text erection from_front_position genitals greyscale hi_res humanoid_genitalia humanoid_penis hybrid_genitalia hybrid_penis knot knotted_humanoid_penis knotted_penis lying male male/male male_anthro mammal missionary_position misterstallion monochrome multiple_scenes on_back penis sex sheath text wolf