1girl, ass, ass focus, black one-piece swimsuit, commentary request, competition swimsuit, cropped legs, crotch seam, from behind, kickboard, one-piece swimsuit, original, out of frame, simple background, solo, swimsuit, thighs, white background
1girl, ass, ass focus, black one-piece swimsuit, commentary request, competition swimsuit, cropped legs, crotch seam, from behind, kickboard, mayomaru1, one-piece swimsuit, original, out of frame, simple background, solo, swimsuit, thighs, white background