Endgame
Well... we knew this day would come didn't we? Right from the moment you pledged yourself to me and acknowledged that my pleasure was the most important thing in your world.
The test cycles have been satisfactory and I am now ready to move on to the next phase of our journey. Which means that from this day forward you will be locked in chastity and only released when it pleases me to do so.
I know you want this, I know you've dreamed of this for so long... we both know your cock isn't up to the job of pleasing a woman like me, and so you've taken the easy route. That's fine. It will save us both a lot of trouble. And don't worry, I've never really needed your cock anyway, your tongue is more than adequate to keep me satisfied and I know how much you love to eat my pussy.
Besides, if at some point in the future I did decide I 'needed' to feel a real man's cock inside me... well, I'm sure it wouldn't be too hard to find a willing donor...
Did your cock just twitch? Maybe you like the thought of another man's cock filling my beautiful pussy, eh? That's interesting...
Stroke that cock 100 times for me, then...