You need to speak with one of your teachers to discuss your upcoming exam. You stop in at her room on your break only to catch her..."blowing off a little steam." She is mortified that you caught her trying to rub a fast one out between classes, but quickly frames this as an opportunity for you both to finds some relief from the pressure of exam season. She tells you to lock the door and then instructs you to take your pants off. When you cock springs free, she can barely hide her excitement. With very clear instructions, she begins to describe exactly how she wants you to stroke for her as she starts the vibrator back up and presses it to her pussy. It becomes clear that she enjoys watching you as much as you enjoy watching her. She guides you trough several rounds of edging, each round more intense than the last. Finally, once you are both hanging on by a thread and shaking with anticipation - she counts you down to orgasm and begs for your cum as she caves to her own climax.