2girls, ahoge, armlet, ass, ass-to-ass, ass_press, back-to-back, bangle, bikini, blush, bracelet, breasts, brown_eyes, brown_hair, butt_crack, cleavage, clenched_teeth, collarbone, double_bun, earrings, glasses, green_eyes, grin, hair_bun, hip_attack, holding, holding_clothes, holding_swimsuit, imu_(senran_kagura), jewelry, large_breasts, light_brown_hair, long_hair, looking_back, multiple_girls, parted_bangs, platform, pool, red_bikini, renka_(senran_kagura), ribbon, senran_kagura, senran_kagura_estival_versus, senran_kagura_new_link, senran_kagura_shinovi_versus, short_hair, short_twintails, shoulder_blades, side-tie_bikini_bottom, smile, string_of_flags, swimsuit, teeth, twintails, water, waves, white_bikini, white_ribbon, yaegashi_nan