1boy, 1girl, black hair, black socks, blue eyes, breasts, chalkboard, classroom, completely nude, fuooooo, groin, hairband, hetero, hyouka, irisu fuyumi, large breasts, long hair, looking at viewer, lying, navel, nipples, nude, on back, pubic hair, sex, socks, solo focus, tile floor, tiles, vaginal, white hairband