Rule 34 Dev - animal_genitalia animal_penis anthro balls biceps big_balls big_knot big_penis canid canine canine_penis canis clows domestic_dog erection fangs fullbodywolf genitals german_shepherd green_eyes herding_dog hi_res huge_cock knot male mammal muscular muscular_anthro muscular_male pastoral_dog paws pecs penis simple_background solo|7719199312