Photorealistic image of a young woman lying completely naked on her back on a soft surface. She has long, wavy hair with caramel and blonde highlights spread out around her head. Her skin is smooth, lightly tanned and covered with a subtle oily sheen. Her legs are bent at the knees and spread wide open, feet flat on the surface, giving a clear and unobstructed view of her genital and anal area. A round, faceted clear crystal anal plug with a polished silver metal rim is fully and deeply inserted into her anus. Only the round crystal base of the plug is visible, sitting tightly against her anus and nestled between her buttocks. The plug is clearly inside her, not resting on her body. Directly in front of the inserted plug her vulva is fully visible in sharp detail, natural outer labia, slightly darker soft inner folds, realistic skin texture. Soft directional lighting highlights the curves of her hips, inner thighs, the crystal base of the plug and her genitals. Shot from a slightly elevated angle looking straight down between her open legs, ultra-sharp focus on her lower body and the inserted plug, highly detailed skin texture, cinematic lighting, 8k photorealism.