1boy, 1girl, absurdres, all fours, arm grab, asphodelus 8, bare shoulders, bed, bikini, bikini bottom aside, bikini bottom only, blonde hair, blue eyes, blush, bouncing breasts, bracelet, breasts, clothing aside, doggystyle, drooling, flower, from side, hair flower, hair ornament, half-closed eyes, hand on another's back, hanging breasts, head out of frame, hetero, highres, idolmaster, idolmaster cinderella girls, jewelry, large breasts, long hair, looking at another, looking back, motion lines, multicolored bikini, multicolored clothes, navel, necklace, nipples, ohtsuki yui, open mouth, ponytail, pussy juice, sex, sex from behind, shouting, side-tie bikini bottom, sidelocks, simple background, solo focus, steaming body, swimsuit, thighs, topless, unaligned breasts, wavy hair