Rule 34 Dev - all_fours alternate_species anthro anus ass_up backsack bottomless canine dog_boy face_down_ass_up full_body fur furry furry_only gintama grey_fur hijikata_toshiro inukkoro male male_only mammal open_mouth pawpads paws police_officer police_uniform shinsengumi_(gintama) solo sweatdrop two_tone_fur wagging_tail|8326353536