A Secret Kink at Work

I've been working at this small-town store for years now. It's not a high-stress job, but it keeps me busy during the day and leaves my nights open. Last week, I was alone in the back room stocking shelves when Sarah walked in, I’ve had this fantasy of us getting intimate here since we first started dating months ago. She knows about it too but has never shown interest. That night, she surprised me by coming around back while I was finishing up late and suggested we finally give it a try. It felt wrong even as I surrendered to my desires. Ever since, every time I’m alone in that room, my mind races with what happened there.