A fully nude woman with long, light brown hair, sitting on top of a fully nude man in a reverse cowgirl position on a white blanket in a picturesque mountainous landscape. The man is lying on his back with the woman seated on his hips, facing away from him. The woman's figure is slender with an hourglass shape, featuring a toned back, slim waist, wide hips, and round, firm buttocks. Her skin is smooth, sun-kissed, and fully exposed. The man has a muscular physique, broad shoulders, and toned arms, lying relaxed on the blanket. The woman's long hair cascades down her back, and she wears a white bow. The scene is set outdoors in a natural environment, with green rolling hills, distant mountains, and a bright blue sky with scattered clouds. The lighting is natural and soft, highlighting the curves of their bodies and casting subtle shadows. The atmosphere is serene yet intimate, blending the beauty of nature with the sensuality of the pose. masterpiece, photorealistic, ultra-detailed, 8k resolution, HDR, ISO 100, shallow depth of field, vibrant colors, natural lighting, minimal noise, perfect composition, sharp focus, soft shadows, perfect exposure, high contrast, hourglass figure, toned back, firm buttocks, smooth sun-kissed skin, fully nude bodies, muscular man, toned arms, relaxed pose, long light brown hair, white bow, mountainous landscape, green hills, bright sky, scattered clouds, white blanket, serene, peaceful atmosphere, sensual, intimate scene