front row seat, legs crossed over one another as everyone walks in and says hi and gets to their chosen seat. And once they're all sat down, im expected to open my legs up so that the prof can see my stuffed pussy beneath the desk whilst he lectures - teeth flashing with the sadistic smirk he wears each time that he looks over and sees me with eyes squeezed shut, doing my best not to make any noise

Sometimes when he feels particularly cruel, he'll call me out by name and say pay attention. In extreme cases of cruelty, he'll ask me to answer his questions and listen to me stutter to jog my brain and look past the pleasure to answer his questions.

The toys vary each week - one time it was a thick dildo, another time a bullet vibe to shove up my cunt. One time it was a butt plug of which the professor could control the vibrations of from his phone.

Of course, I then also need to wait until the end of the lesson before i can leave. Otherwise, everyone would see me get up with strings of my own cum extending from the chair to my sopping pussy as I get up.

No, instead I wait for everyone else to leave.

Then the professor can tell me to turn around and touch my toes so that my skirt flips and he can observe my pussy, stuffed with whatever odd object he'd decided to use on me that week.