You ought to know the rules by now: you stroke on my command, and when you cum, it is always a ruined orgasm. Despite the fact you know you won’t be allowed any pleasure, you still love following my orders, don’t you? Today, you’re going to tie your balls as tightly as you can, then you are going to stroke for me. You are so hopelessly devoted to your Mistress you almost don’t need them – let’s get you used to jerking off with no release. When I do finally allow you to cum, you are going to struggle to pump anything out of your balls when they are tied up that tightly. And when you untie them… well. You will appreciate how completely I’ve ruined your orgasm today.