In a high school classroom、blackboards、classroom desk，Natural light on the right

In a high school classroom、blackboards、classroom desk，Natural light on the right，brightly，Double photo、Two high school girls、The school uniform is open、Lift your skirt、Show off ultra-sexy ultra-thin lingerie、Expose chest and buttocks、The butt is facing the camera、stooped、Lie on your desk、taken from behind。Hips raised high、Beautiful curves、Emphasis on the buttocks、take up close、Realistic and detailed skin texture，Smiling

(nsfw:1.5),paintings, sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, age spot, (outdoor:1.6), glans