Ultra photorealistic full-body shot of a slim young woman with long straight light-brown hair, fair smooth skin, sitting upright on top of a man who is lying on his back on white sheets, her legs raised high and spread wide in a V-shape with the soles of her feet visible, looking directly at the camera with a soft open-mouthed expression, the man’s hands firmly gripping her buttocks, his erect penis visible at the base between her thighs, both completely nude, soft even high-key studio lighting against a plain bright white background, highly detailed skin texture, realistic body proportions, natural soft shadows, sharp focus, artistic nude photography style, 8k, extreme detail