2girls, blue_sky, blush, breasts, brown_eyes, brown_hair, closed_mouth, cloud, frown, genderswap, genderswap_(mtf), happy, kyon's_sister, kyonko, long_hair, looking_at_viewer, multiple_girls, ocean, one-piece_swimsuit, open_mouth, photoshop_(medium), ponytail, school_swimsuit, siblings, side_ponytail, sisters, sky, sleeveless, small_breasts, smile, standing, suzumiya_haruhi_no_yuuutsu, swimsuit, tomosuke, wading, water