1boy 1girl :>= arisugawa_natsuha bar_censor black_eyes black_shirt censored cum cum_in_mouth door earrings ejaculation fellatio hetero idolmaster idolmaster_shiny_colors indoors jewelry long_hair male_pubic_hair oral penis pleated_skirt pubic_hair red_hair red_nails sash see-through shin'yashiki shirt skirt solo_focus striped_clothes striped_shirt swept_bangs vertical-striped_clothes vertical-striped_shirt