anal anal_penetration anatomically_correct anatomically_correct_genitalia animal_genitalia animal_penis balls bodily_fluids canine_genitalia canine_penis cum cum_inside detailed_background detailed_fur duo feral feral_on_feral feral_penetrated fur furryrock_(model) genital_fluids genitals grass knot looking_pleasured lying male male/male on_back paws penetration penis plant sex size_difference smaller_male tree director_firewolf arcanine canid canine generation_1_pokemon generation_5_pokemon mammal pokemon_(species) zorua detailed hi_res