Learn to keep stroking
I want you to give me one last show of good stroking, if you can do that I'm gonna get rid of my top. Apply more lube if you need to and then start increasing that speed stroker-boy.
Faster, faster, are you at a good stroking speed yet? Good, now go faster, YES even faster, you are really going to work that cock. You should be between 2 and 3 strokes per second, that is a nice fast stroking speed. Not so much fun to watch, but it builds up your cum pretty fast, ready to spurt it.
How long do you think you can hold it? Its fun to watch you struggle to keep your cum in. When you can do 3 Minutes of this you can cum *laugh*, but if you could do that you wouldn't probably be here.
Otherwise slow down before you reach an edge. After some cooldown moments at standby speed i want you to go up again and try to stay as long as you can on that fast speed.
I want you to try this five times, up and down, fast and slow, each time try your best to increase your time.
When you are done ...