Rule 34 Dev - 2boys after_sex bare_chest blonde_hair demon_slayer gay hair_down kimetsu_no_yaiba kyu_717 long_hair_male looking_at_viewer male male_only muscular muscular_male open_clothes red_eyes rengoku_kyoujurou sweat upper_body uzui_tengen veiny_muscles white_hair yaoi yellow_eyes|7025391376