In the stuffy, book-lined office, the professor's gaze lingers on the blonde teen's ass as she bends over, her pleated skirt riding up, revealing her lacy panties. She turns, catching his gaze, and smirks, "I want to learn, professor." He swallows hard, his cock twitching in his pants. He guides her to the desk, pushing her down, hiking her skirt up. His large, powerful hands grip her thighs, spreading them wide. He runs a finger along her slit, feeling her wetness, before plunging it inside, making her gasp. He teaches her the art of squirting, his fingers expertly finding her G-spot, his palm pressing against her clit, until she's writhing, begging, and finally, flooding his hand with her juices.