Blearily you check the flyer you had taken with the time and address of the drug trial. This is definitely the right place - a nondescript office in the chemistry building - and you were about five minutes early. Hopefully it would be over quick, just a few measurements, sign a waiver, take whatever it was they were testing, and then you could collect your money and go back to work.
You knock on the open door and step in, then smile at the receptionist. "Uh, hi," you announce yourself. "I'm here for the trial that's supposed to happen today? For something called-" you check the sheet to read it, but the receptionist cuts you off.
"Oh, you're the first one here," she says as she checks a clipboard. "And it looks like you're the only one signed up for this. I'll let her know you're here, she should be out in just a few minutes." You nod and take a seat in one of the chairs by the door, take out your phone, and begin reading the news to pass the time.
After a minute a door beside the desk opens and a woman's voice calls, "Come on back, I'm ready for you." You pocket your phone and stand, then walk over to the woman in the doorway. She's a fair bit taller than you, with flowing blond hair and grey eyes with a very athletic body. The woven pattern of the collar on her hot pink shirt is at about nose level, and her long, slender legs are accentuated by very tight jeans tucked into a pair of knee-high boots.
She holds out her hand to you and you take it, giving her a solid handshake. "Good morning, I'm Olga," she says cheerily. "How're you doing?" She turns around and leads you into the room, a fairly large lab with racks of test tubes and beakers on each table. Briskly she walks to the far corner where she's set her equipment up, and beckons for you to stand against the wall.
"I'm not doing so bad, how 'bout yourself?" you answer as you follow her instructions. As you take your spot on the wall she says that she's doing fine, and tells you to stand up straight. She withdraws a tape measure from her prepared kit and holds one end beside your head, then drops the other end to the floor. Olga tells you to step on it as she pulls it taut.
She jots down your height and weight, then says, "Do you know what sort of drug you'll be testing today?" You shake your head, figuring that she must have gotten your weight somehow, then she explains, "We've been working on a dietary supplement to assist people with losing weight. The way it works is that it latches onto unnecessary fat cells and reduces them without totally eliminating them, though it does make them much easier to burn off. With me so far?" You nod, and she continues. "We've already got human trials well under way, but we need you to see what happens when someone's subjected to an extra large dose. Of course a dose is based on body composition, size, and a variety of other factors, so that's why we had to use someone so small for it." You nod again, and Olga begins spooning a powder into a glass of water.
"The normal dose is one-quarter tablespoon," she elaborates, "so we'll be giving you twenty." She hands you the glass, making sure you have a firm grip on it before releasing it. "For safety we'll need you to stay here a while for observation, that won't be a problem will it?" You shrug and shake your head, and Olga smiles. "Good. Drink up when you're ready."
You tilt your head back and chug the liquid as fast as you can. It's faintly cloudy from all the stuff she added to it, and it tastes incredibly bitter as it gushes out onto your tongue. Still, you want that $200, and it's not like the side effects could be too bad. When you finish it you hand the glass back to her and wince from the taste.
"Okay, if you feel strange, uncomfortable, or have any suden changes, let me know," Olga says as she sets a timer, then leans back to watch you. Several minutes pass as your eyes dart furitively around the room and you try to make small talk with her when she stands up and grabs the tape measure again.
Already you can tell something's wrong. For one thing Olga, who had previously merely been tall, now towered over you as your eyes met her chest. For another she steps on the loose end of the tape measure, holding it down with her boot as she compares the end she's holding with the top of your head. "Four feet, six inches tall after five minutes," she reports matter-of-factly, not even a hint of surprise in her voice.
"What do you mean I'm four-six?" you ask. "I may be short but I'm over five feet, did you measure right?" When you finish talking you find yourself looking up at Olga's chest, and she has to peer over her breasts to respond.
"No, you're just shrinking." Olga must have noticed the surprise on your face since she continues, "We knew there was an outside chance of this happening with such a large dose, it was on the back of the flyer we posted, didn't you read it?"
"I did," you say, looking up from her waist, "I just thought it was a joke! I mean, who would think 'loss of height' could be an actual side-effect? Do you at least know how small I'll get and when it'll wear off?"
Olga squats down to put herself at eye level with you and reads off "Three feet eight inches," the stands back up, putting your eyes right in the middle of her thighs, then she answers your question. "Typically the risk is one to two inches with a normal dose over the course of usage, but you got eighty times that all at once so... really small? As to how long, well, it's supposed to never let the fat cells grow again so that they can be burned off at any time, so I guess you might say it's," she suddenly gets a lot quieter, "permanent."
Your eyes bug out as they reach the top of her boot. "Permanent?" you shout, your voice getting higher-pitched. "And how small is 'really small?'"
Olga towers above you more and more as you continue shrinking. This time she doesn't bend down to get a measurement of your accelerated shrinking and replies, "I can't be sure, just focus on my boots and you should be able to tell from them. Remember that you're in a lab, everything's safe and if you follow my instructions I can make sure nothing goes wrong."
The top buckle on her boot goes racing past your head as you watch her grow ever-larger compared to you. You try to back away from the titaness, but she slides her unoccupied boot behind you, blocking you as you bump up against it. "I really need you to not move for your safety," she instructs.
Several more minutes pass as you watch her constantly grow taller, her boot becoming like a tower on its own. Finally Olga crouches down and says, "Well, let's see where you've ended up for now..."