I made it three steps out of his office before the string between my legs started doing its job.

Every stride dragged that thin red line tight across my clit, splitting my soaked folds, rubbing raw and relentless. My bound wrists were shoved deep into the pockets of my coat so no one in the hallway would see. My thighs were already shiny. I could feel the wetness sliding down toward my knees with every forced step.

By the time I reached the stairwell I was biting the inside of my cheek hard enough to taste blood. Students passed me on the way to evening classes. Normal. Laughing. Talking about...