Rule 34 Dev - 2boys anal anal_sex anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis animated balls border_collie canid canine canis collie domestic_dog duo equid equine equine_penis fence feral field frame_by_frame gay genitals herding_dog hooves horse interspecies knot looking_pleasured male male/male male_only mammal muskydusky pastoral_dog pawpads paws penetration penis sex sheepdog short_playtime size_difference tongue tongue_out yaoi|6397081352

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