What appears to be a laser scanner on the ceiling scans over you from head to toe. At first, it feels as if nothing happened, but then you start to notice all your hair falling out. Not just your head hair, but also your eyebrows, arm hair, chest hair... Even your pubic hair starts falling off. A powerful fan activates, blowing everything off of you, leaving you completely bald.
"Don't worry. It'll grow back..." says Alex, smirking. "I went through this process too. How else do you think I got this rockin' hot bod!? Of course, I was already female when we started. You're going to experience some far more serious changes..."
You feels movement beneath you. You realize you've been lying down on some sort of latexy, black, folded sheet. It shoots out from under your body, and straps of it whip around your body and cling to you tightly. You open your mouth to scream, but a strap flies across your face, gagging you. It has a plastic tube, allowing you to breathe, but only slightly. Soon, you're entirely covered in rubbery straps, like some kind of kinky BDSM mummy. You can't move even an inch, it clings so tightly. You can't see anything either, though you can hear Alex's voice.
"This is the patented D.I.F.C., which is responsible for most of the changes. The DNA injector and form compressor. To put in terms someone like you will understand, it utilizes mesh-like strips that have liquid flowing through them. This liquid is injected all over your body through miniscule needles, so small, you can't even feel them. The liquid completely replaces your DNA with whatever my computer has programed the DNA to be. Then, the compression part happens. It moves in such a way that it stimulates every cell in your body. It forces them to essentially perform a 'do-over', and rearrange and reconstruct at a rapid rate. Your flesh will morph into that of a hot, young lady within a matter of minutes! Even your bone structure will be redone! Apart from your brain, there won't be a single trace of your old self left! From this moment on, you will only be remembered as 'May'!"
And with those words, the compression begins. It starts off subtle, but grows more and more. It pushes down upon your body, HARD. Your entire body feels like it's being crushed, like you've being constricted by a massive snake. It's not outright painful, but the sensation is unbearable all the same. You try and scream for help, but all that comes out are muffled cries.
"Mmmf! Mmm, Mmm, MMM!"
It pushes down on your penis and testicles the hardest, as they're the softest part of your body apart from your eyes. It crushes up against your taint, pushing more and more until you finally feel them give. At first, you think your dick and balls have been flattened beyond use, but then you realize that they don't exist at all. The cells they were composed of have been completely pushed inside your body, ready to be recycled into something else. You are now genderless.
It doesn't stop with your balls however. As Alex stated, your entire body undergoes changes. You feel more and more pressure on your chest, as you go from tiny A-cup nipples, all the way up to D-cup honkers. You hear the creaking and cracking of bones as you feel your hips widen, and your body shrink. Your legs feel heavier as your calves and ass start to get fatter, and most of all, you feel a pit in your stomach. The area between your legs has started to cave inward and soften, forming a tender, virgin vagina, complete with clitoris and puffy labia. Throughout all of this, you can't help but scream. The sensation is overwhelming. However, as you do so, you notice that your deep, masculine voice has started to change in pitch. It continues until you have a soothing feminine voice, befitting that of the cute young Pokemon trainer you've become. Finally, as the finished touches are put upon your female features, and your womb completes, ovaries included, you feel the straps around your scalp loosen and feel a tickle run down your face. Your head has regrown hair, flowing, brown and long, just like May's. You feel the same sensation at your crotch as trace amounts of pubic hair form.
You are complete. A girl, through and through. Not a trace of masculinity remains of you. With your new body constructed, the straps around you release, including the original straps that held you in place. You fall straight from the operating table, and right onto your knees, facing the ground. Your untended hair whips forward, and covers your face. Your fresh boobs jiggle as you hit the ground. Since you're no longer covered in latex straps, you start to feel the effects of your nudity again. You feel fresh air on your asshole and newly acquired cunt. You're too exhausted to feel properly embarrassed at this point. Sweat dripping from your entire body, you lift your exhausted head upwards and come face to face with a grinning Alex. She's holding another syringe.
"Now, here's the thing sweetie-pie." She says, in a condescending tone.
"You're going to do whatever I say from now on, and here's why. I'm genetically engineered to be way stronger than anyone else in this building. I can easily overpower you in an instant. The place is also guarded by bio-engineered sentry girls who do whatever I say. The place is completely underground, and even if you run, you'll get nowhere without a fingerprint and a security key. You're completely at my mercy, so don't even think of disobeying me."
Alex leans in closer.
"And if you do... Well, let's just say that I have a few... other things I could turn you into. Sexy young women aren't the only things we manufacture here at this company... And we could always use more disobedient subjects. Now hold out your arm, I'm going to put you back to sleep. We've got some finishing touches to put on you and we can't have you moving around."