Rule 34 Dev - animal_genitalia anthro anthro_on_anthro biped canid canine canis claws dr.kiyo erection fingers fur genital_slit genitals group hair hi_res horn interspecies kemono male male/male mammal muscular muscular_anthro muscular_male penis penis_size_difference scalie scar size_difference tail tapering_penis tokenyoudao trio wolf|13181622424