A thirst for knowledge brings a curvaceous, mature student to her professor's private retreat. Her academic shortcomings have resulted in an unusual offer: a chance to improve her grade through an intimate, hands-on lesson in oral satisfaction. The professor, a man of considerable endowment, instructs her on the art of deep throating, his voice steady despite the sensation of her warm, eager mouth enveloping his cock. The student, with her big, natural tits heaving, takes to the task with gusto, her ebony skin glistening with effort as she strives to master the art of fellatio, hoping to graduate with honors in this most unconventional of courses.