Stop, Stop! You're going to blow too soon, I'm not ready for that to happen yet. You will now use a different technique.
I will let you jack your cock as fast as you want, but you absolutely cannot touch the head of your penis, or the sensitive area of your shaft just below the head. So you will be making super fast, short, quick strokes. I will not allow you the pleasure of long strokes anywhere near the head of your cock, you got that? Start now!