Can you see my ass? I know you were waiting for it. Make sure your balls are very tight and start stroking very fast, I want you to get to the edge and I want you to hold it looking at my ass for 10 seconds.
Relax for 15 seconds.
Now I want you start stroking again, really realy fast until edge, you just can look at my back, I know you want to cum all over my back, and look the cum sleeping over it, but you can't you are not allowed to cum yet.
When you edge, stop touching and look at my ass for 10 seconds.