Dirty little stroker! How dare you stroke your dick again?! Haven't we spoken about this before? Yes, we have. The rules are, you ONLY stroke when I tell you to. And I don't want you to. Stroking that dick means you're pleasing yourself. And that won't do. The only person you should be pleasing is Me, your Mistress. So it's time for your dick to have a little time-out. Oh, don't worry. You'll get your freedom back. But you have to do something for me, first...