The sharp, insistent rattle of the doorknob echoed in the suddenly silent office. My blood ran cold, a horrifying dread replacing the aftermath of pleasure. Professor Davies froze, his hand still on my clit, his head snapping towards the door. The muffled voice came again, clearer this time. "Professor Davies? Are you in there? I heard some... noises. Everything alright?"

My eyes flew open, wide with terror. I was naked, sprawled on the couch, covered in sweat and semen. He was half-undressed, his large cock still glistening. There was nowhere to hide.

The doorknob rattled again, more forcefully. Then, with a soft click, the lock gave way. My breath hitched....