Rule 34 Dev - a_(pixiv) anthro anthro_on_feral ass_up blush digitigrade domestic_cat duo ear_tag felid feline felis feral greyscale heart_(mad_rat_dead) hi_res licking mad_rat_(character) mad_rat_dead male male/male male_only mammal monochrome murid murine oral rat rodent simple_background tongue tongue_out white_background zoophilia|4894010968