You're already so gooned out and losing sensitivity. Your cock has been rubbed raw and your nerves are switching off.
But you're still craving ONE MORE EDGE. One last big hit of pleasure.
Do it for me. You have it in you. Close your eyes, focus. Do whatever you have to do to get to the edge one more time for me.
And then it's time to stop. Go to bed. Get back to work. We can continue this later.