2girls, bed, bed_sheet, bikini, bikini_under_clothes, black_bikini, black_hair, black_shirt, blonde_hair, closed_eyes, futaba_(rei-futaba), groin, indoors, inoue_takina, lycoris_recoil, lying, midriff, multiple_girls, navel, nishikigi_chisato, on_back, on_bed, on_stomach, open_fly, open_mouth, pillow, saliva, shirt, shorts, side-tie_peek, sleeping, swimsuit, t-shirt, unbuttoned, unzipped, white_shorts, window, yuri, zipper, zipper_pull_tab