"Now back to the stroking. I'm just going to lie here and watch you desperately fight against the urge to cum all over me."
"Go on. 50 medium strokes."
[10 seconds rest]
"Feel free to cum at any time but if you do, you realise that you WON'T be getting any of my sweet ass later on. I think its a prize worth waiting for. Ok, 50 more."
[10 seconds rest]