1girl, ass, bare_shoulders, blue_eyes, blue_hair, blush, breasts, closed_mouth, from_behind, g-string, grin, huge_ass, huge_breasts, long_hair, looking_at_viewer, looking_back, original, ortina_lillibel_(yashiro_sousaku), oruka_(kamituki0827), outdoors, outstretched_arm, pool, smile, thigh_strap, thighs, thong