Pov riding sex scene, she sits on mans cock, Ultra photorealistic portrait of a beautiful, extremely muscular blonde woman in her early 20s, stunning symmetrical face, sharp jawline, high cheekbones, full lips slightly parted, intense direct eye contact with the viewer, seductive and confident expression, long blonde hair tied in a high tight ponytail with some strands falling loosely, extremely ripped and shredded physique, highly detailed muscle definition, prominent six-pack abs with deep cuts, visible serratus anterior and obliques, powerful muscular shoulders and deltoids, thick vascular biceps and forearms, small tiny round breasts with natural shape and perky nipples, wide muscular back, completely nude, sitting on a white bed in a wide open M-pose, legs spread very wide apart, knees bent, feet flat on the bed, leaning slightly forward toward the camera, pussy fully visible and detailed, cinematic lighting, strong bright natural daylight coming from a large wooden-framed window directly behind her, creating dramatic rim lighting and highlights on the edges of her shoulders, arms, breasts and thighs, soft diffused light on her front, subtle skin sheen and sweat, realistic skin texture with visible pores and muscle striations, bedroom setting, light gray walls, white bedsheets, dark wooden floor, large rustic wooden window frame, high detail, sharp focus, 8k resolution, intricate details, photorealistic, ultra realistic, masterpiece, best quality, realistic proportions, depth of field, riding a penis in cowgirl position, leaning forward