zel-sama, gotoh hitori, kitagawa marin, bocchi the rock!, sono bisque doll wa koi wo suru, 2girls, bikini, black bikini, blonde hair, blue eyes, blush, breasts, choker, cleavage, collarbone, cosplay, costume switch, covered erect nipples, crossover, cube hair ornament, embarrassed, floral print, gotoh hitori (cosplay), hair ornament, hands on another's stomach, hug, hug from behind, kitagawa marin (cosplay), large breasts, layered bikini, long hair, looking at another, looking back, multiple girls, navel, pink hair, print bikini, red eyes, side-tie bikini bottom, side ponytail, smile, standing, swimsuit, underboob, white bikini, window, yuri