Rule 34 Dev - 4koma animated blonde_hair comic cum headphones headset hole incest kagamine_len kagamine_len_no_bousou_(vocaloid) magical_nuko-lenlen_(vocaloid) male male_focus megurine_luka multiple_4koma necktie nude project_diva shota siblings sound source_request steampianist twincest twins video vocaloid yaoi yellow_necktie|4110245502