absurdres bangs beach bikini black_bikini_bottom blush breasts brown_eyes brown_hair cleavage cleavage_cutout closed_mouth commentary_request day dutch_angle excel_(shena) eyebrows_visible_through_hair girls_und_panzer hand_on_own_stomach highres looking_at_viewer looking_back lying medium_breasts mismatched_bikini multiple_girls navel nishizumi_maho nishizumi_miho on_back on_side outdoors parted_lips pink_bikini short_hair siblings sisters sky smile straddling swimsuit wading wet white_bikini_top