You're shaken from your place aboard the train, from your place between worlds, by a birdsong heard just outside your window. It leaves you feeling groggy to be woken just a bit earlier than you would have liked from what had been a peaceful sleep, and in your grogginess it comes naturally to wonder: Where did that dream about a train which takes you to other worlds come from? And could you imagine if you really were, now, in the world you'd chosen in your dream to go to?
Thinking about the choice of world which you'd made, you decide to humour the possibility that you really have been transported to a world in which someone could have their genitals removed. How would you find that out? That one's easy, your half-awake mind concludes as your arm reaches to pull your bed's cover down over your body. You'll know that no such event has taken place when you look across your body and find your penis safe and snug inside your underwear - because if you were in such a world as the one you'd dreamed of, you would have had that penis removed.
It throws you for a loop to see your lower body then, with part of your underwear's accustomed bulge conspicuously absent. Disbelieving this sight, you try 'flexing' your penis, clenching your pelvic floor just to see how your underwear's bulge will shift, and it throws you for a loop again as you realise that you're not even feeling any shift in your underwear's bulge.
Could it really be...?
What's going through your mind right now? Shock? Trepidation? Relief? No small amount of surprise, surely.
You're quick out of bed then, and quick to find the nearest mirror (perhaps a luxurious wall-spanning one, perhaps the camera on your phone) before which you drop your underwear to see - your balls in their sac, and the curve of your groin above them (with perhaps a fine covering of pubic hair to be noticed, as well, across these two main features of your groin). What you don't see is a penis.
How long ago did you have it removed? How exactly was it removed? To look at it now, it's more like you'd never had a penis at all.
A few more questions must run through your mind then: How do you pee? (Lifting your balls up against the skin immediately above them, you find a fingertip-sized, recessed dimple underneath the lower end of your scrotum. It wouldn't be out of the question for you to find it cute.) How do you masturbate? (Looking across your groin, you don't find an obvious answer to that one.) Are people (and especially partners) going to 'get' your gender anatomy? Is this really something you're going to be able to take for granted now, for the first time in your life?
Perhaps you're thinking that you would be masturbating right now if only you knew an obvious way of doing so. Perhaps you're finding it nice not knowing whether 'masturbation' is something which is applicable to you. Perhaps you're just staring at your crotch, still in disbelief at what you're really seeing. Perhaps all thoughts of the impossible transition which has taken place overnight have left your mind, or perhaps they're now taking center stage as, in the face of all of this, you're left to wonder "how?"