Rule 34 Dev - 2boys age_difference ass back bare_back barefoot black_hair black_suit blush butler butt_crack ciel_phantomhive comforting completely_nude earrings emi feet formal_clothes grey_hair hug jewelry kuroshitsuji legs lineart medium_hair monochrome multiple_boys nude sebastian_michaelis sex short_hair shota soles square_enix suit toes yaoi|24481501083