Rule 34 Dev - 3boys absurdres anus armpits ass barefoot blonde_hair blue_hair collar erection foreskin group_sex headphones highres kagamine_len kaito_(vocaloid) kamui_gakupo lying lying_on_person male_focus mmm_threesome multiple_boys nipples penis purple_hair reddverse testicles threesome underwear undressing vocaloid yaoi|10844869932