Rule 34 Dev - 2boys 4_nipples alternate_species anthro black_hair blush canine closed_eyes dog_boy fangs furry gay gintama gintoki_sakata grey_fur hijikata_toshiro human interspecies inukkoro licking_male_nipple looking_at_another male male_only mammal multi_nipple nipple_licking nipple_pinch nipple_pull nipple_tweak nipples open_clothes open_kimono open_mouth two_tone_fur upper_body yaoi|8326347976