narutaki shin, hiiragi tsukasa, lucky star, translated, 00s, 1girl, blue eyes, blue hair, blush, breasts, camisole, caught, crotch rub, feet, female focus, female masturbation, flute, instrument, kneeling, looking at viewer, masturbation, masturbation through clothes, matching hair/eyes, panties, pussy juice, recorder, short hair, small breasts, socks, solo, striped clothes, striped panties, underboob, underwear, underwear only