Rule 34 Dev - abs animal_genitalia animal_penis anthro balls big_balls big_penis canid canine canine_genitalia canine_penis canis erection fangs fullbodywolf fur genitals grey_body grey_fur hand_behind_head hi_res huge_cock knot looking_at_viewer male mammal muscular muscular_anthro muscular_male pecs penis solo teeth thundergrey wolf|9268975920