You walk into the lab early and set one of the coffees you had picked up on the table beside a laptop. After two and a half years of work the device you had been helping with, capable of changing the size of any living thing, was finally ready for a full test. However, since you're not qualified to operate it, you take a seat and wait for the woman who put it together.
A few minutes later Lana enters, walks over to the table and takes the coffee you brought for her. When the department assigned you to aid her with her ongoing project, you never thought it would be something quite as groundbreaking as this. Even though it's far from your specialty you had picked up a little bit about how the contraption is supposed to work while assembling circuitry for it, and your complementary skills had led you and Lana to become friends as well as coworkers.
"Ready to give it a shot?" Lana asks after taking a sip from her drink. She takes a controller from her open light blue button-up shirt's pocket in her delicate hand and brushes it off on her red undershirt. Quickly she straightens her dark brown, not-quite-knee-length corduroy skirt over her black stockings, and taps her tarnished silver kitten heel shoes. "Though I guess first we need to find someone willing to stand in front of the thing."
You finish your coffee, stand out of your chair, and declare, "I'll do it."
Lana looks surprised and walks toward you, the base of her slender neck at around your eye level. "Are you sure?" she asks. "If something breaks there won't be anyone to fix it. Surely the department will send us some freshmen who need a bit of money if we just ask, it'll only be a few more days."
"I'm positive," you answer, looking up into her dark blue eyes. "Today's the day, if we wait any longer we won't have time to properly report the results. I know the machinery and circuitry are good, and I trust that you have all the calculations correct. Besides," you smirk, "I'm already pretty small, the gun won't have to do much."
Lana chuckles, rests an arm on your shoulder and says, "Yeah, you're pretty damn short. Okay, go stand in front of it, I'll get it going. You're fine staying small for a few days until the presentation, right?" You nod, and walk over to the designated point. "Good, I don't want any skepticism from my review board ruining this. Don't worry, I'll take care of you until then."
The device is a large, bulky thing mounted on a tripod by a window for extra ventilation. You stand on the wall opposite it with your back against a height chart, standing straight up. To your side a pencil hangs from the wall, which you take and mark your height - still around 5'3". When you press yourself back against the wall you smile reassuringly to Lana.
"Okay, it's at power, locked on to your heat signature, ready when you are." You wave to her as the go-ahead, and Lana types in the code. At once the machine whirrs to life and shoots out a beam of white light, striking you in the stomach. As the beam's energy spreads throughout your body you feel tingly while waiting for it to take full effect.
It's subtle at first, and if you didn't know what's going on you'd think you're losing your mind. The lab tables seem like their proportions are off, and you can feel yourself sinking along the wall. Lana approaches, careful to not get in the way, to provide a better scale as you shrink (and likely just to watch you dwindle). When she reaches you it's apparent that you've already shrunk a foot, since you're eye to navel.
You look up at your friend as she gets ever-bigger to you, changing from a tall, slender woman a head taller than you to a towering giantess before your very eyes. Of course you know she isn't growing, just you shrinking, but from the mixture of surprise and pleasure on her face you're not sure she isn't thinking of herself as a giantess now.
The device shuts itself off, and your tingling dissipates a moment later. "Wow, we really did it!" Lana exclaims, her amplified voice causing your ears to ring. "I can't believe we got you so small, it's incredible! Here, let me mark it on the chart." Lana bends down beside you, still many times taller than you as she squats, and makes a mark above your head. You turn back to see the line at...