Being transformed into someone's pussy is the ultimate humiliation and submission

Think about it. You are reduced to nothing but a small genital. Your primary function being sex. Not only that, you are the receiving sexual organ. Just a hole to be used and fucked. There is nothing more submissive than being a pussy. And while you look quite vulgar, there is nothing more girly than a pussy.
You will lube up your entire body in preparation whenever your owner gets horny like the good little fuck hole that you are. And there is nothing you can do about it. Your owner (or the man she's fucking) will remove the cute panties that are your permanent home, freeing you and releasing your strong girly smell into the air. You will receive a man's penis. Embracing pure hard masculinity with your whole soft, little wet body. The opposite of what you are now, perhaps the opposite of what you used to be (a man). Doing the one and only job that you've been made for: pleasuring a dick and the woman who owns you. And you will like it too, because you're designed to feel good with all your nerve endings. Because you're just a pussy.