Hyperrealistic, NSFW, explicit, 4K, cinematic, amateur style. A classic university lecture hall with wooden desks, a blackboard, and a podium. A tiny Russian woman, (early 20s, very slim, low height, pale skin, long dark hair in a messy bun), sits on a man's lap on a desk. She is wearing a university uniform — a white button-up shirt, a navy blue pleated skirt, and a matching blazer — but the skirt is pushed aside, and the shirt is completely unbuttoned, revealing sheer white stockings and a white lace garter belt with suspenders. Her legs are spread wide, and his thick cock is buried deep in her tight anal hole, visible as he fucks her. Her face is contorted in pleasure, mouth open in a silent moan. She looks at the camera with a sly, knowing smile. Her pubic area is bare except for a neat, trimmed strip of hair. A university cap lies discarded on the floor. Camera angle, medium shot, from the side, capturing the full length of his cock entering her ass and her small breasts bouncing. Lighting, bright, overhead, with fluorescent lights creating a cold, clinical atmosphere. Style, amateur porn aesthetic, high contrast, sharp details on her small body, the university uniform, and the anal penetration.