A college student, eager to please her new teacher, stays after class for "extra credit." The teacher, a handsome middle-aged man, can't help but notice her growing interest in him. One evening, as they're alone in the classroom, she makes her move. She walks over, her heels clicking on the hardwood floor, and leans over his desk, her low-cut top revealing her ample cleavage. He hesitates, then gives in, pulling her onto his lap. She grinds against his growing erection, and he can't help but touch her, his hands exploring her curves. They kiss, passionately, as they undress each other, the classroom filling with the sounds of their lovemaking, the teacher's desk creaking under their weight.