Rule 34 Dev - 2015 all_fours anthro balls bed big_balls big_knot black_hair brown_fur canine cum cum_in_ass cum_inside dasa demon devil_dog doggy_style dragon ear_piercing fangs from_behind fur gay gorath hair horn knot long_tongue male mammal nude open_mouth penetration penis piercing sex shade_okami size_difference tongue yaoi|2133678912