A Surprise

I never thought I'd end up in this situation, sitting there with my knees trembling, waiting for a spanking. It happened at one of those fancy dinner parties where everyone acts like they know everything about each other but really, you just find out things to gossip about later. But then she mentioned something in passing, a look passed between us, and suddenly I found myself asking if we could... well, play out an old fantasy. She said yes, god knows why. And there I was, fully dressed except for my shoes, on her bedroom floor, with her hand resting lightly on my backside before the real thing began. It felt so unexpected, like a secret world opened up behind a door no one knew existed.