Jerk Off Promises
Hold the edge! If you have to stop to avoid cumming, do so, but get back on the edge as soon as possible.
Mmmm. I can't believe you just agreed to that. My pussy is so wet now that you have to do anything I say. Do you even know what I'm into? I've fantasized about a moment like this forever.
That orgasm I'm going to give you in a bit.. it's going to be your last orgasm.. ever. After you cum I'm going to fit a steel chastity belt over your loser cock. When you're locked up for good I'm going to melt down the key and make myself a nice ring. And for good measure I'll poor glue down the lock to your cage while I finger myself to an orgasm.
Why do you look so shocked? What did you expect? Remember, you agreed to do whatever I say. I bet you feel like breaking your promise now. Too bad you agreed to endure my punishment if you break your promise. If you don't give me your last orgasm, I'm still going to lock you up forever. But before I put the cage on I will fit spikes into your chastity belt. How would it feel to have your cock locked up in an iron maiden for the rest of your life?
Get off that edge, but don't stop stroking.