1girl, arm_up, armpits, arms_note, black_one-piece_swimsuit, breasts, brown_hair, competition_swimsuit, dark-skinned_female, dark_skin, flexible, fukai_ryosuke, green_eyes, hair_ornament, hairclip, highleg, highleg_swimsuit, looking_at_viewer, one-piece_swimsuit, original, simple_background, skindentation, solo, spread_legs, stretching, swimming_club_president_(fukai_ryousuke), swimsuit, thighhighs, wide_spread_legs