It's time we move things along in your training, little slave. I know you're resistant to the idea of sucking cock, but you need to get over it. I want that mouth of yours blowing dick like a pro. We just need to teach you how to do it properly. A good slave is there to be used, after all, and that mouth of yours is really just a hole to be filled. I have a number of training aids that will help you get used to having your mouth stuffed. We'll even get rid of that silly gag reflex! Let me tell you all about it...