marugoshi (54burger), fukumaru koito, idolmaster, idolmaster shiny colors, commentary request, 1boy, 1girl, bar censor, black hair, black ribbon, black socks, bra, bra lift, breasts, censored, clothed sex, clothing aside, couch, faceless, faceless male, grabbing another's breast, grabbing from behind, groping, hetero, indoors, kneehighs, neck ribbon, nipples, on couch, open mouth, panties, panties aside, penis, pussy, reverse upright straddle, ribbon, sex, sex from behind, short hair, sitting, small breasts, socks, swept bangs, tongue, twintails, underwear, vaginal, white bra, white panties