A stunning 18-year-old student is sitting on a chair at a desk in a university classroom. She is wearing a crisp white shirt that is fully unbuttoned and open, revealing her figure beneath. She also wears a short, fitted mini skirt that highlights her youthful and vibrant look. Her long hair cascades down her shoulders, and she has a focused yet slightly playful expression on her face as she looks towards the front of the classroom. She is adorned with elegant jewelry, including a delicate gold necklace, small hoop earrings, and a thin bracelet on her wrist, adding a touch of sophistication to her youthful appearance. She has large, full breasts that are accentuated by the open shirt. She is sitting with her legs spread apart, adding a provocative element to her posture. The setting is a modern university lecture hall with rows of desks, a large whiteboard at the front, and soft, natural light streaming in from the windows. The overall atmosphere is academic yet with a subtle touch of youthful charm. Image Style, Photorealistic, high-resolution, natural lighting, balanced exposure, clean composition, detailed texture. Body Characteristics, Slender and youthful with large, full breasts, relaxed yet provocative posture, smooth and fair skin, natural light shadowing, gentle contours. Anatomical Features, Long hair cascading down, well-groomed eyebrows, soft lips, expressive eyes, natural makeup, visible collarbone, slim arms, and legs, large and prominent breasts. Clothing and Accessories, Fully unbuttoned and open white shirt, short fitted mini skirt, no underwear, delicate gold necklace, thin bracelet on wrist. Space and Environment, Modern university classroom, rows of desks, large whiteboard, soft natural light from windows, academic and clean atmosphere, organized and tidy setting.