2girls, bare_shoulders, bikini, black_hair, blush, bracelet, breasts, choker, earrings, eyewear_on_head, fubuki_(one-punch_man), green_eyes, green_hair, highleg, highleg_bikini, jewelry, kasai_shin, large_breasts, leaning_forward, looking_at_viewer, multiple_girls, navel, o-ring, o-ring_top, one-punch_man, short_hair, siblings, side-tie_bikini_bottom, sisters, smile, stud_earrings, sunglasses, swimsuit, tatsumaki, thigh_gap, thighs, wading, water