Well, this is certainly not an opportunity you want to pass up. It's not every day, after all, that one gets to see a real live dinosaur, let alone see how it was recreated! You accept the old man's initation, excited. He smiles in a slightly disconcerting way. "Great," he says. "Pick her up and follow me."
Bending down, you pick up the unconscious Velociraptor. Now that the terror of the moment is past, you realize that it's actually quite small; you remember that in Jurassic Park Velociraptors were supposed to be about human-sized, but you also recall reading in the encyclopedia that they were actually about the size of a turkey, as this one is.
But a turkey is still pretty sizeable, and takes a lot of effort to lug the sleeping dinosaur into the building the old man guides toward. "These tranquilizers," you say, "they're..."
The old man laughs. "Good for around fourteen hours," he replies. "Don't worry, she won't even come close to having a chance to eat you." He directs you into the building, a sort of operating room-slash-laboratory in a Quonset hut, and has you set the Velociraptor onto an operating table, where he proceeds to check it for injuries before hefting it into a holding pen.
"Now," he says, "I'll be happy to show you how I make my experimental pets, but first I'd like to explain some of how the process works, so you can better understand what you see. Have a seat." He points to a large metal armchair, which, while it seems strange, certainly looks more comfortable than the battered folding chair he's sitting in.
You sit down, and he launches into a long spiel about DNA injections into an existing creature of similar type, like a large bird. You feel a prick in your backside, but when you readjust yourself it just seems that it's numb, which you attribute to sitting in a metal chair.
"But," you interrupt when he pauses for breath, "I thought that DNA was a code for constructing a new organism, not a definition of what an organism is in its current state. How would a 'DNA injection' work?"
The old man smiles that unsettling smile again. "It wouldn't," he replies. "It's all done with nanotechnology; that bit about DNA was just to distract you until the tranquilizers took effect."
You suddenly realize what he means. Horrified, you try to get up from the chair, but the sedatives have already kicked in and motion takes tremendous effort. The old man is monologuing about how he needs another female Velociraptor to initiate a breeding program as you struggle to get up.
Breeding program? You're not about to let that happen. With a heroic effort, you lurch out of the chair, grab a tranquilizer dart off a nearby table, and slam it into his shoulder. After a moment, he sinks to the floor. With the old man out of action, you turn to look at the chair. Sure enough, there's a needle poking up right where you were sitting. It's fed from a nearby IV bag, which is about half-empty.
The tranquilizers overtake you, and you sink to the floor, sprawling out on your back. You look up to find that the ceiling is mirrored, and watch in a mix of awe and horror as the changes begin.
First is the gender change. Your hair begins to grow at an accelerated rate until it's about halfway down your back, or would be if your back wasn't currently flat against the floor. Your face changes, becoming, softer, finer-featured, and generally more feminine. Next, your limbs change, your legs becoming long and shapely, your arms becoming slender and delicate. Then your torso changes, completing your curvy figure, your waist contracting a bit and your hips expanding a bit. There's a pressure in your chest, and your new breasts grow in; they don't become terribly large, but they're still enough to stretch your shirt out a ways. Suddenly there's the final change, a scrambling sensation in your genitals, and you're fully female.
But that isn't the end, not by a long shot. Next your skin changes, becoming finely scaled, a dull red splotched with orange, with a patch of creamy yellow skin running from your chin, down your chest (and the insides of your breasts,) and ending in your nether regions. All your body hair falls out, leaving only the hair on your head, which has changed to a golden blonde. Your face changes too, becoming a little more elongated and muzzle-like, but still recognizably human, even if your mouth is filled with sharp fangs. Your eyes change, becoming yellow-greenish orbs with thin catlike slits for pupils. Your ears, or at least the external parts, disappear, leaving only holes in the side of your head. Next, your entire figure changes, becoming a little less curvy and a little more athletic. Your legs are the most affected, becoming slender and powerful, but your arms tone up a bit, too. Your feet become fully Velociraptor feet, complete with the well-known sickle claws on your big toes. Your hands themselves don't change, but your fingernails do become claws. Finally, your spine extends into a long, semi-rigid tail, covered in red and orange scales, except for the creamy yellow patch down the underside. Your new tail rips your pants right off, giving you a good look at your new female parts. You expect these to change as well, and idly try to remember what lizard genitalia look like, but no further changes occur; your reproductive organs, plus your modest-sized breasts, make it clear that you're still a mammal where it counts.
Only where it counts, though. In every other respect, you look like a reptile, albeit a very human-looking reptile. You could, you suppose, be reasonably described as an anthropomorphic Velociraptor, though it might be more accurate to call you a raptormorphic human. This and a thousand other minutiae dance through your head as you lie on the floor in a haze, unable to get up due to the tranquilizers.
Suddenly you wonder: how are you going to deal with the old man?