A photorealistic full-body scene on a tropical beach with fine white sand. A beautiful young woman is completely naked, lying on her side on the sand with one leg bent and raised, her body slightly twisted. She has long, wet, tousled light brown hair with golden highlights that clings to her face, shoulders and chest. Her skin is sun-kissed, glowing and slightly tanned, covered in fine wet sand and water droplets that glisten in the sunlight across her breasts, stomach, hips and thighs. She has a slender, athletic yet soft body with a flat toned stomach, defined waist, full natural breasts with pink nipples and smooth toned legs. Kneeling right behind her is a tall, muscular dark-skinned man, completely naked. He has a large, thick, heavy flaccid penis. The woman has reached back with one hand and is firmly gripping his penis, her fingers wrapped tightly around the shaft while looking back over her shoulder at him with a sensual expression. The background shows a calm turquoise ocean meeting a clear blue sky under bright natural daylight. Highly detailed skin textures, realistic wet skin, sand particles, and natural anatomy, cinematic lighting, sharp focus, 8k, photorealistic.