Yesterday, when we talked about having to wait for a spanking, you told me that you loved hearing me whisper in your ear, "The next time we're alone, you're getting spanked for that." There's the forbidden thrill right then, the buildup of desire and fear that makes both more intense, and then the release of it all when you finally get the spanking and the treat that follows.

It was your old fantasy that really got me thinking, though... the one about being a girl who did something bad and had to wait without knowing whether she was going to be found out and punished. Let me give you something new to wait for:

I want you to pretend that you did something very naughty today. You and your friend left for school, properly dressed in modest clothing, but then you changed into light skirts that stopped above the knee. Even worse was why: you cut gym to write history test answers on the insides of each other's thighs. That way, during the test, you could inch your skirts up to peek at the answers, without anyone else being able to see. You think you got away with it, but you don't really know. Your friend's Facebook status was "Thighly motivated student." Did someone decode that and tell? Did some boy look up your skirt and suspect? Did you somehow give yourself away on the test, so that the teacher knew you cheated when he graded your paper?

You don't know. Neither do I.

When we get together this weekend, there will be a simple application running in the background on my phone. Periodically, it will generate a random number. I have written three letters from your principal with various levels of detail about the incident. The right number will trigger my ringtone or chime, and send one of the texts.

You know what that means, don't you? It means you might get caught at any time. You were naughty, and you will jump at every call, every text, every sound my phone makes. Maybe it's a call that has nothing to do with you; maybe it means punishment.

Maybe the right number never comes up, and that means you were bad and got away with it. I'd be disappointed to drive home Sunday without ever getting to spank that beautiful backside of yours, but it's a risk I'm willing to take for a game that promises to be as exciting as this one.

Meanwhile, you just think about what you've done. How do you think you should be punished if I find out you dressed slutty to cheat on a test? Are the inappropriate skirt and the cheating separate offenses? What about cutting class? How much will I know if I confront you? You don't want to say too much and add to your punishment. On the other hand if I know, lying gets you the belt...

Sleep well. Don't let that alarm clock startle you in the morning.