Wow. That was not nearly hard enough slave. You did so well with the stroking too. Why are you not begging and clamouring for forgiveness? Your face should be buried in the floor, your body prostrate. Well it is too late now slave, you have disappointed me. Now you will learn why I am called "Fire."
Crush your balls for me. Squeeze them as hard as you can. Use both hands slave. Again. Now slather your stroking hand with the icy-hot. Use you other hand to punch your balls twice and then start stroking as hard and as fast as you can without cumming and