Zen: The Art of Staying on Edge

Zen: The Art of Staying on Edge by mallo2011

And now you can speed up your pace once more.
Go to 120 beats.
You are here to learn the art of staying on the edge.
For this purpose we define edge a level of arousement at least of 9. Remember 10 means you are actually cumming and we both DO NOT want this to happen, do we?
At this point I want you to go as up as possible without getting to the edge.
Just go as near as possible.
Speed and slow down your strocking just to keep yourself near the edge. Let's say from 8 and 1/2 to 8 and 3/4.