1girl, arm_support, ass, bathing, blonde_hair, breasts, completely_nude, facial_mark, forehead_mark, from_side, hanging_breasts, huge_breasts, leaning_forward, long_hair, looking_at_viewer, low-tied_long_hair, mature_female, mountain, nude, onsen, outdoors, partially_submerged, rock, slug, turning_head, water, wet