Rule 34 Dev - against_surface animal_genitalia animal_penis balls big_balls bodily_fluids canine_genitalia canine_penis cum ejaculation erection feral genital_fluids genitals glass knot knot_in_sheath male on_glass orgasm paws penis sheath solo tongue tongue_out x-kid canid canine canis domestic_dog mammal hi_res|4519498200