I don't think I'm going to tell you yet what my cruel method is. I WILL tell you, however, that if you cum without permission, after I ruin it in my exceptionally evil way, you will spend the next hour having your balls punished. There will be slaps and squeezes, for sure. But there will also be punches. And kicks. And a vice. You will not enjoy it.
Give those little testicles 20 more hard slaps.