Photorealistic close-up of a young woman with light olive skin and dark brown hair in a messy low ponytail with loose strands framing her face, lying on her back on a white bed with rumpled white sheets and pillows. She is completely nude, small natural breasts with pink nipples, legs spread open with one knee raised. Her right hand is between her legs, fingers gently spreading and touching her labia and entrance, detailed realistic genitals visible. Soft, slightly parted lips, looking directly at the camera with a calm, intimate expression and half-lidded eyes. Soft natural daylight from a window, warm lamp in the background, simple bedroom with white walls, wooden headboard/furniture, and a bedside table. Highly detailed skin texture, realistic anatomy, cinematic shallow depth of field, 8k, photorealistic.