Rule 34 Dev - 2boys animal_ears blonde_hair blush cum cum_in_mouth demon_slayer den_meka doujin_cover fox_boy fox_ears fox_tail fundoshi futon gay hakama japanese_clothes kamado_tanjirou kimetsu_no_yaiba kimono kitsune male male_only muscular_male on_side open_clothes rengoku_senjurou sweat tail thick_eyebrows twink two_tone_hair yaoi yellow_eyes yellow_fur|5740683320