Photorealistic, masterpiece, best quality, HDR, 8K, blonde woman, mature, white t-shirt, grey pencil skirt, sitting on edge of office desk, leaning back on hands, legs spread wide and raised, skirt hiked up, pussy exposed and visible, man standing between her legs, visible from waist up, clothes on, shirt unbuttoned, pants undone, erect penis penetrating her, clear view of penetration, office setting, computer monitors behind her, desk supplies, fluorescent lighting, 50mm lens, realistic skin texture, sweat on skin, moaning expression