Rule 34 Dev - anal angry animal_genitalia animal_penis anthro balls black_body black_fur blue_body blue_fur bodily_fluids bone canid canine canine_penis canis claws cum duo ejaculation evil_grin fox fur gay genital_fluids genitals gesture glowing glowing_eyes gradient_background knot looking_at_another lying male male/male mammal messy middle_finger monster muscular muscular_male on_back penetration penis purple_body purple_fur reptile scalie sex sharp_teeth simple_background sinser size_difference sketch skull slit_pupils small_dom_big_sub smile smirk sweat teeth white_body white_fur wolf yaoi yellow_eyes|4143333128