1girl, 2boys, /, bare_arms, bare_shoulders, black_hair, blue_one-piece_swimsuit, blush, breasts, brown_eyes, cleavage, collarbone, comic, covered_navel, curtains, drying, drying_body, furrowed_brow, furuyama_itaru, hiding, holding, holding_towel, indoors, large_breasts, light_blush, mirror, multiple_boys, musical_note, navel, nose_blush, old_school_swimsuit, one-piece_swimsuit, original, peeking, pervert, reflection, school_swimsuit, short_hair, spoken_musical_note, swimsuit, towel, voyeurism, wet, wet_clothes, wet_swimsuit, window