I assume you would like to see me naked, to watch my cock? Not that fast, bitch, you have to be more patient!
I want you to stroke now as fast as you can, at least 5 times per second, for 30 seconds. Do not edge yet, don't be so weak!
Rest for 30 seconds and thereafter you must stroke with both hands, even faster and harder than before, for 30 seconds without stopping (and without cumming, by the way :-)).
Does it start to become difficult?