A masterpiece, top quality, ultra-detailed modern anime hentai style, clean lines, glossy, glistening skin, bright lighting, detailed anatomy, a post-apocalyptic ruined city, tall, abandoned skyscrapers, rusty, wrecked cars, rubbish, an overcast grey sky, a beautiful young woman with long, wavy platinum-blonde hair, large blue eyes, her mouth slightly parted with pleasure, fair skin, large breasts, a slender waist, bare from the waist down, wearing only an unbuttoned black hoodie with a white hood and a red patch on the sleeve, and high army boots, she is standing with her body turned slightly, one leg raised, her hand resting on her hip, a muscular man with tousled black hair, sharp facial features, scars and crack-like marks on his face, chest, arms and legs, standing directly behind her, wearing a torn sleeveless jacket over a black vest, his thick, erect penis penetrating deeply into her vagina from behind, both bodies are lightly covered in sweat and traces of dirt, a clear scene of standing sex from behind, a highly detailed hentai illustration in a modern digital anime/hentai style of the highest calibre