FURVERT!

1:1 2013 aaron_(artist)abs all_fours anal anal_penetration animal_genitalia animal_penis anthro anus balls biceps big_muscles big_penis black_body black_fur black_penis bodily_fluids bondage_gear border brown_body brown_fur brown_hair butt butt_grab canid canine canine_genitalia canine_penis cum cum_covered_penis cum_in_ass cum_inside cum_on_butt cum_on_penis cum_string cum_while_penetrated cumshot digital_media_(artwork)doggystyle duo ejaculation equid equine equine_genitalia equine_penis erection eyes_closed fangs fox from_behind_position fur genital_fluids genitals grey_body grey_fur hair hand_on_butt hands-free harness hi_res horse internal interspecies kneeling knot leaking male male/male male_penetrated male_penetrating male_penetrating_male mammal muscular muscular_male nude open_mouth orgasm pecs penetration penis red_body red_fur sex tail tattoo teeth thick_penis tongue vein white_body white_border white_fur