You have been under my care for over two years now, and though they haven't been without conflict or fuss (mostly from your end, I have been very fair), you have come out wonderfully. The estrogen has done wonders for your body. Your breasts have filled out exquisitely, and your body has curved and smoothed out in such a way that it would be erroneous to call it "male". Face it missy, you're damn hot now. Ah ah! Don't tell me how you didn't choose any of this! I can see you blushing. And in your adorable little outfit too. I don't remember getting you this blouse. You bought it yourself. However, we'll have a talk about you using my card to buy clothes behind my back some other time. The important thing is that you have made incredible progress, thanks to my guiding hand of course. Which means it's time for the next step.
Oh. I see you trembling. Which means you guessed what this is about. That's right. It's time to get you to the doctor to have that little something between your legs rearranged. Oh please, don't be like that! That little member of yours has shrinked so much it's merely vestigial at this point. Your anti-androgen shots have made you effectively sterile too. It's time for it to go my dear. Aaww don't cry! There there. I know this is difficult, but you'll unlock a whole new world without that thing inside your pants in the way.
And you won't have to worry about a thing. The doctor I know is a consummate professional, and very much aware of our little... situation. So don't try to squeal about how I've been keeping you by my side against your will cut off from everyone you know and that you have never consented to any of my impositions and prescriptions. She knows. And she won't help you. Besides, we both know that your resistance is merely token after so many years. I have effectively broken you, missy. This is just the final step. I believe you can persevere the needed recovery after your imminent operation, and come back a stronger and happier woman for it.
Just imagine the possibilities of being made so readily penetrable. Of being so complete in your womanhood. Your new pussy will unlock many avenues of sensation for you. Plus you won't have to tuck anymore, I know how you always complain about how uncomfortable it makes you. What do you have to lose? Besides the ability to pee standing up? Please. And if it helps you make peace with it, just know that I'm not asking for your permission. This will happen. I'll leave you some time to think. Because tomorrow we're visiting the doctor. She will explain to you all the intimate details. See you till dinner!