kishiri toworu, miyao ryuu, futami ami, futami mami, idolmaster, idolmaster (classic), striped legwear, 00s, 2girls, :d, aiming, aiming at viewer, bandaid, bandaid on knee, bandaid on leg, brown eyes, brown hair, child, diving mask, diving mask on head, feet, food, goggles, goggles on head, hair bobbles, hair ornament, innertube, looking at viewer, loose thighhigh, multiple girls, one-piece swimsuit, open mouth, partially submerged, pool, popsicle, school swimsuit, siblings, side ponytail, single thighhigh, sisters, smile, snorkel, socks, striped clothes, striped thighhighs, swim ring, swimsuit, thighhighs, thighs, twins, water, water gun