2girls, alternate costume, aqua eyes, aqua hair, bangs, bikini, blunt bangs, blush, choker, closed mouth, criss-cross halter, frilled bikini, frills, front-tie bikini top, front-tie top, futaba sana, futaba sana (swimsuit costume), green bikini, hair ornament, hair rings, hair scrunchie, halterneck, hand on another's back, innertube, looking at another, looking at viewer, magia record: mahou shoujo madoka magica gaiden, mahou shoujo madoka magica, medium hair, multiple girls, official alternate costume, open mouth, pink bikini, pink choker, pink eyes, pink hair, plaid, plaid bikini, pool, scrunchie, sidelocks, single hair ring, split mouth, sweat, swimsuit, tamaki iroha, totte, twitter username, upper body, water, wavy hair, white background, yellow scrunchie