Disclaimer: All publicly recognized characters, settings, etc. are the property of their respective owners. The original characters and plot are the property of the author. No copyright infringement is intended.

Note: Since this is the prologue, there might not be any growth in this chapter. There will be some in the next, though.



Matt was a little bored. His family had been invited to live in the town of Groowgon, and they were registering now. Groowgon was a town known for it's fancy life style, and being invited to live there - for free - was an honor. Although, Matt couldn't quite figure out why his family was picked. His girlfriend, Katie, had her family picked, as well as some of his friends, mainly two boys, Tony and Chris, and two girls, Laura and Riley. As Matt was waiting in line, he saw that his 18 year old brother Kyle was starting the survey. In order to register to enter, everybody had to fill out an electronic survey in person. Apparently, the owners wanted quite a bit of personal information, such as name, height, weight, etc., and some people had to do extra things, such as give a blood sample, have a photo taken of them, etc.. Matt wasn't quite sure why any of this had to be done. He saw his brother finish, and his 17 year old sister Melissa went up. Melissa was kind of a jerk to him at times, always making fun of how weak he was, and even said he'd never get a girlfriend up until a few months ago, when he did. Melissa soon finished, and Matt went up to the screen. It started asking questions right away, and Matt started answering.

What's your name?
Matt Anderson.
Gender?
Male.
Age?
15.
Height?
5'11".
Weight?"
120 lbs.
Hair Color?
Dirty blonde.
Do you like swimming?
Yes.
Do you have a girlfriend?
Yes.
If so, who?
Katie Nolwind.
Would like to be taller?
Yes.
Would you like to be stronger?
Yes.
Would you like to be more "endowed"?

Matt looked at that question for a second, wondering why they would be asking that to a teenager, but then just entered "yes".

The woman to the side said to sit down so they could take a blood sample. Matt didn't know why they all of a sudden needed one from him, and he let them take a sample. Then the woman asked,
"Are you wearing boxers?"
Matt was a little shocked that she asked that, but said "Yes."
"Alright, then. Go into that room, and strip down to your boxers so we can take a picture for our records." said the woman.
"What? No way!" said Matt.
"Okay, but if you don't, your family can't live here." responded the woman.
Matt looked at his mom, wondering what to do.
"It'll be fine, sweetie. Just do it."

Matt sighed and went into the room, and stripped down to his boxers. He didn't really like being in public with just his boxers, since it was kind of obvious how big his member was flaccid, which was about 4 inches. They took the picture, and Matt put his clothes back on and left with his family.

-----------

Katie Nolwind had just arrived at the registration when she saw Matt leave. She waved, then got in line. She had a 17 year old sister like Matt did, but Julie was a lot nicer. After Julie quickly finished the survey, Katie went up and started the survey.

What's your name?
Katie Nolwind.
Age?
15.
Height?
5'8".
Weight?
135 lbs..
Hair color?
Golden blonde.
Do you have a boyfriend named Matt Anderson?
Yes.
Do you want to be taller, bustier, etc.?
Yes.
Do you want your boyfriend to be bigger?
Yes.

After that, Katie thought she was done, but the woman told her she needed to take a blood sample. After that, the woman told her she needed to do something else.
"You need to go into that room and strip down into your undergarments."
Katie was a bit shocked, but she went in and did that. She noticed how her bra was a little tight; she would have to get a new one soon. Even though she was only a B Cup, her breastx were still growing. After that, her picture was taken, and soon Katie had left.

-------------

Later that day, at night to be exact, a man was sitting in his office. His name was Connor Venten, and he was the main owner of Groowgon. At lady walked in to his room.
"I think we may have a couple that fits your specifications, sir." said the woman, as she put down a picture of a teenage boy and one of a teenage girl.
"What are their names?" said Mr. Venten.
"Matt Anderson and Katie Nolwind."
"Great. Make sure cameras are put into the homes they live in, as well as the high school."
"Yes sir."
"Oh, and do we have their blood samples?"
"Yes."
"Then tell the scientists to start making Xtr-Growth-749 that matches only their DNA."

It had been a few days since Matt registered.

Matt was getting ready for the first day at his new school (which was Groowgon High, by the way). So far, his family had moved into their new home. For some reason, everyday they were supposed to fill out a survey around 5:00 in the afternoon. Matt found that strange, but for now, he has to get ready for school.


Matt walked into his new school, and found Laura, Chris, Riley, Tony, and Katie waiting for him. They talked for a bit, then Matt and Katie headed to their first class: gym.

When Matt was changing in the locker room, the other boys noticed his... bulge, but they didn't say anything about it. However, a junior in the class, Ryan, came over to Matt. Ryan was 6'3", and was aiming to be a bodybuilder at one point, but for now he was somewhat built.
"Hey, squirt! You think you're so tough?" Ryan said to Matt.
"Umm... not really... not right now..." responded Matt.
"Well, too bad!" said Ryan, who then proceded to punch Matt in the gut.
Matt crumpled to the floor in pain.
"Ha ha! The new nerd couldn't even take a small punch!" said Ryan, and soon all the other boys were laughing as well.
"Don't even try to tell the teacher! Or I'll hit you again!" threatened Ryan.
"Heck, I could even snap you in half!" said Ryan.
Matt quickly put his clothes on and got out.

-----------

Katie would have trouble in the locker room as well. One of the most popular freshman girls picked on her the instant Katie came in. The girl was Tracy, and she was 5'10" with D Cup breasts.
"Hey, shorty! What are those little lumps on your chest? They're too small to be breasts!" said Tracy, making fun of Katie's (barely) small body.
"Darling, you'll never get any boys to like you! You're too small and ugly!" said Tracy, throwing another insult.
"Actually, I do have a boyfriend, thank you very much." responded Katie.
"Oh, is he that new weakling nerd? I was talking about actual boys, not shrimps!"
"Hey! Don't insult my boyfriend!" shouted Katie.
"Well, maybe you should grow up!" said Tracy. Katie just grumbled and got out. When she did, she noticed Matt crouched over in pain. Katie rushed over and talked to him.
"What happened?"
"Jerk in there punched me in the stomach..."
"Hm. Well, I'm sure you'll find a way to deal with him soon enough."

------------

Later that day, when Matt returned home, it was time to take his daily survey. However, today the questions were a little different.

Did you get bullied today?
Yes.
By whom?
Ryan Fields.
Do you want to be bigger than him?
Yes.
Do you want a taller, bustier girlfriend?
Depends.
Do you want your current girlfriend to be taller and bustier?
Yes.

----------

Katie had to do a fairly similar survey, and she was finished fairly quickly. Then her phone rang.
"Hello?"
"It's me, Matt. You want to go to the swimming pool at 7:00?"
"Um, wouldn't it be dark by then?"
"Well, yes, but they have these cool lights there!"
"Well, okay. See you there!"

Katie then shouted to her mom.
"Hey, Mom! I need a bikini for the swimming pool!"
"Alright, dear. Let's go get you one." said her mom.

At the Groowgon mall, Katie found the clothes section and headed over to where the bikinis were. However, the clerk shouted to her.
"Hey! You can just come to this machine and enter in your name! Then the machine will find the best fit for you."
Intrigued, Katie went over and put "Katie Nolwind" into the machine. It then suggested a light blue bikini found in aisle 3. Katie went over and found the bikini. However, she found the tag a little strange:
"B cup bikini! It has stretchable fabric, so you can keep it even as you grow!"
Katie decided to buy it, then she headed off to the swimming pool.

Matt was already there, and had a noticeable bulge in his swimming trunks. Katie giggled, then changed into her bikini. The two of them then jumped in.

----------

In the building directly next to the pool, there was a small lab. There were one way windows so that they could see outside, but the people in the pool couldn't see in. A lab attendant rushed in.
"Mr. Venten says that when Matt Anderson and Katie Nolwind arrive, you should put in the Xtr-Growth-whatever in the pool in the right amount so they get the desired results!"
"Alright, then. They're already here, so let's see if the stuff works."
On the walls were screens showing Matt and Katie in their undergarments. One man entered in a few things into a computer, then the Matt on the screen grew taller and stronger, and had a much more apparent bulge. The Katie on the screen grew to Matt's original height, then her breasts grew to about a DD Cup. Then the head scientist hit a large red button labelled GO!.

-----------

All of a sudden, Matt felt weird, as if his body were elongating. He shrugged it off and kept swimming. He swam over to the 6' deep section, but noticed something was amiss. If he wasn't 6' feet tall yet, then how did his feet touch the bottom with his head still above water?
(Continued in Ch. 2, Pt. 2)

Matt could tell something was wrong. He was only 5'11", yet now he couldn't be completely submerged in the 6' deep section, which meant that he was 6' tall, or taller! Matt had checked his height in the morning; it was 5'11", not 5'11" and a half or a quarter, 5'11" on the dot. If he could believe his eyes, then Matt had grown an inch during the course of the day. Matt decided to just shrug it off as the pool not being filled completely. He continued swimming, but noticed that his swimming trunks were a little tight around the crotch area.

Katie started to feel weird, too. Her bikini felt a little out of place. She looked down and noticed that her breasts seemed slightly bigger, and her nipples were erect, poking at the fabric of her bikini. Katie wondered what was going on, but then she felt a small tingle in her body. All of a sudden, her bikini bottom tightened on her. And then she saw her chest grow a little! Katie just looked at her breasts, wondering what just happened. Holding them in her hands, Katie's breasts felt heavier, and were now around a C-Cup. Another tingle went through Katie, and this time she could slowly feel herself rise out of the water a little as she grew. Her bikini tightened even more, almost becoming painfully constricting on her chest. If this bikini was supposed to stretch, it wasn't doing a very good job of it. Katie couldn't really tell, but she had grown to 5'10" and had D-Cup breasts!

Katie went over to Matt, and she noticed that he didn't look as skinny as he used to be. She could even see a faint six pack of abs. Katie glanced down, and noticed his bulge seemed larger than before, the fabric around it struggling a little. In fact, it was tight enough that she could just barely make out the shape of the head of his cock.

"Hey, Matt! Have you been working out recently?" Katie asked.

"Uhh... no... Why do ask?" Matt asked.

Matt noticed Katie's larger breasts, and had to force himself to not get an erection from her beauty.

"Well, it's just that you seem... buffer than usual." Katie said.

"I don't know..." Matt responded.

At that moment, Matt felt a strange tingling throughout his body, and suddenly his muscles grew warm. Katie was shocked to see his muscles swell in front of her! Matt's once stick thin arms grew bigger, his biceps as big as baseballs. His pecs grew more developed, and then his thighs and calves grew, straining his swimming trunks, and much to Katie's delight, even his cock grew; even though it was flaccid, its full shape was visible. Before Katie or Matt could say anything, Katie too felt a tingle, and then she started to grow. Her breasts started straining her bikini, and her breasts started to be visible above and beneath her bikini top. Katie's butt also grew a little more, accentuating her now more perfect hourglass figure. Her bikini bottom now looked more like a thong. The couple looked at each other, then Matt spoke.

"I think we should leave, before we attract too much attention!" Matt said.

Katie nodded, and the two climbed out of the pool. Matt attracted quite a few stares from the teenage girls and even some adult women, and Katie caught the eyes of a few guys.

Of course, they couldn't tell, but Matt was 6'2" with a lot of muscle, and his cock was about 5.5" long flaccid, 9.5" long erect, and was about as thick as a soda can.

Katie was 5'11", with a perfect hourglass figure with DD-Cup breasts!

When Matt got home...

Matt rang the doorbell to his house. He was still just in his swimming trunks.

His sister, Melissa, opened the door, and, while talking on her phone, accidentally bumped her face into Matt's pecs. Melissa quickly got off her phone, and then started admiring the muscular teen's torso, and then she smiled when she saw his cock pressing against his swimming trunks.

"Oh, I'm so sorry! Please come in. Are you one of Kyle's football teammates?" Melissa asked with a slightly seductive tone.

"Uhh... no. It's me, Matt." Matt said.

Melissa turned around and looked at Matt's face, and realized that it was indeed her younger brother's face. Melissa's smile and happy attitude promptly vanished, and started to be filled with fear.

"M-m-matt? What happened to you? You must be bigger than Kyle!" asked Melissa.

"I don't really know... I guess I just had a growth spurt while at the pool." Matt responded.

Melissa just looked dumbfounded, and then walked into her room and closed the door. After that, Matt's mom came in, and Matt quickly explained the situation.

"Well, I guess we'll need to take you to a doctor tomorrow..." Matt's mom commented.

"Can I get some new clothes?" Matt asked.

"I won't be able to get you anything until after school tomorrow. Maybe you could ask Kyle?"

Matt nodded and headed up to his brother's room. He knocked on the door, but Kyle didn't respond. Matt knocked lightly again, since he didn't want to accidentally knock Kyle's door down. Again, no response. Matt decided to just give up, so he went to his room, closed the door, and tried to get out of his swimming trunks.

Unfortunately, his swimming trunks were too tight for him to take off normally, so he just ripped them off. Matt was aroused at how easily he did that, and quickly got an erection that was easily over nine inches long. Just at that moment, Melissa opened the door, wanting to see whether her brother really was huge now, or if it was a dream. Too late, Melissa realized what she was seeing, and her jaw dropped at Matt's huge cock. Melissa was dumbfounded that her 15 year old little brother had a cock bigger than any boy she'd ever seen. Melissa then left the room, speechless, and didn't bother to close the door.

Matt went over and closed the door, and, after his cock went flaccid again, put on a pair of boxers. He was barely able to get it on, and of course, considering how tight it was, his manhood was easily visible. Deciding that the most he could manage to put on would be his boxers, Matt went to bed.

---------

When Katie got home, her mother was equally surprised, and, like Matt, Katie would go to the doctor and get new clothes tomorrow. Katie went to her room, and changed out of her bikini, but seeing that her bras really didn't fit, Katie went to her sister's room, and opened the door while topless.

"Hey, Julie! Can I borrow one of your bras? Mine don't really fit anymore." Katie asked.

"Well, maybe you shouldn't eat so-" Julie started, but when she saw her sister, she was shocked.

"Oh my goodness, Katie! What happened to you?" Julie said.

"I really don't know. I was swimming at the pool, and all of a sudden, bam! I grew! And something similar happened to my boyfriend..." Katie said.

Julie looked at Katie's large rack, and then felt her sister's boobs in her hands.

"Wow, they're so big and heavy! I think you're quite bigger than me! I don't know if my bra will fit, but you can try." Julie said.

Katie nodded, and then grabbed one of her sister's C-Cup bras. It barely fit, but it looked like it was going to snap at any moment. Katie then went back to her room.

---------

Back at Connor Venten's labs...

"Mr. Venten! The two have left the pool." said an assistant.

"Hmm. And how did the chemical do?" asked Mr. Venten.

"They've grown quite a bit above average." commented the assistant.

"Great. Now, what can we ask the boy that makes us sure he wants to be bigger?"

"Maybe we could ask him if he'd like to be big enough to win the Mr. Olympia contest."

"Great idea! And once he grows some more, we need to make sure that the Mr. Olympia contest actually comes here so we know that he is big enough."

"Yes, sir."

"And what about the girl?"

"Maybe she'd like to be the captain of the cheerleading team?"

"Yes, yes, great idea. Let's hope they come to the pool tomorrow. Oh, and make sure that cheerleading tryouts happen soon."

"Yes, sir."

And with that, the assistant left, leaving Mr. Venten to himself.

Matt stood up, now quite a few inches taller than Katie (Matt is now 7'5"). Katie now had the familiar feeling of looking up at her boyfriend again. She wasn't really used to being taller, and although it was arousing at times, it also felt uncomfortable for her. As Matt got up, though, his cock brushed her thighs and her stomach, arousing Katie a little.

"Well, it looks like you're back to the height difference you were at before this whole growing thing happened, more or less." Riley commented.

But then, Katie started to feel weird. The bedsheet started to tighten across her chest and her lower body, and before Katie knew it, her perspective was rising! Soon Matt was looking up at her, and soon Katie's bedsheet tightened enough that there was no more slack on it, and it started to tear in some places! Katie looked up as the 8 foot ceiling started to get closer and closer. All of a sudden, Katie's bedsheet tore in the middle, exposing her nicely toned abs. And soon, Katie's bedsheet tore across her chest, releasing her beach ball sizd boobs! At this sight, Katie saw Matt's cock grow a little more. Soon Katie's bedsheet couldn't hold up anymore, and it just fell off her goddess body. Her butt had grown some in the process, now perfectly curvy, and then Katie's head bumped the ceiling! Katie could see Matt grow slightly taller at seeing his girlfriend nude, but she noticed his cock was growing a lot more, too. Katie stopped growing, but Matt was still growing a little. Katie giggled as the head of Matt's cock brushed over her abs as it rose. When Matt was done growing, he was about 7'8", and Katie was 8 feet tall! Riley then jumped down with her tape measure, but she had trouble measuring Matt's cock this time since it was so high off the ground.

"Alright... wow, Matt! Your cock is now... 24 inches long! Two feet! And Katie, wow, you're huge at that size! You must be 8 feet tall! Hey, can I talk to you outside for a moment?" Riley said to Katie.

Katie nodded and headed back outside. Matt just sat there waiting.

"Hey, Riley! What in the world were you doing with a giant nude-" Cynthia said as she walked in.

Cynthia was now in her bra and panties, but she still looked sexy to Matt, so Matt's cock swelled even bigger as Cynthia just stood there in disbelief.

"I'm just going to go outside..." Matt said.

Outside, Matt found Riley comparing herself to Katie's size. "Wow! I'm only eye level with your belly button!" Riley said excitedly. "I guess I am a bit... big..." Katie said. "Oh, and Matt, there was something I wanted to check..." Riley said. Suddenly, she jumped onto Matt's cock, and surprisingly, Matt's cock was able to hold Riley up! "Wow... your schlong is so strong! I can't wait for the day I can have that thing inside of me!" Riley said. "Well, Riley," Katie said, "First off, you're not having sex with Matt. And second, do you really think a two foot cock would fit inside of you?" Katie responded. "Who knows, I might have a big growth spurt like you two did!" Riley said.