I do not own Invader Zim or the Characters or Disney's little mermaid this is a work of pure fiction… and that's the entire disclaimer I know of off the top of my head. Enjoy….

Growth Spurt

The Hi-Skool building stood eerily along the dirty and stained buildings. Rivaling a prison with its fences and decorated with barbed wire with a complete lack of decor. And despite it being summer the Skool lacked anything warm and inviting as the new herd of junior's waked to their new classes.

A shorter green child ran toward the Hi-Skool building. His name is Zim an Irken Invader from Irk gathering information and trying to destroy the entire human race to please his leaders the all mighty Tallest. Being here for a few years his diligence has not yet been rewarded nor noted as the armada is still slowly trying to conquer the universe, and avoid him completely.

Skidding at the entrance he ran through the halls and manages to make it in to class with in the time limit. Hands on his knees he breathed hard from the run. Finally looking up at his old and new class mates he flinched and jumped back. No longer were they his own height but a now a larger height rivaling the Taller (second in command next to the Tallest)!

"What the-!" Zim exclaim in shock. His big blue eyes darted to each of his class mates as they towered over him in there new stature that seemed to continue to grow to Zim in his current state of shock.

"What's the matter Zim ever heard of a growth spurt?" came the voice of Zim's nemesis that's foiled many of his plans to rule the earth, Dib. He appeared seemingly nowhere and loomed over Zim with a cocky grin. Zim seeing his ach nemesis so tall made the Irken physically ill. Zim became paler and shaky as Dib taunted him with his new height.

"What's wrong with you man? Zim's just sick." The Letter M said coming to the sickly green child's defense.

"Yea, Zim probably needs more time to grow." Said, Zita.

"He's not going to grow! His species is short! They can't grow!" Dib tried his hardest to convince his ignorant class mates. Then the room was casted in an eerie shadow as the sound of a snake hiss followed by a pair of red eyes shone thru the shadow.

"Dib have a seat." Ms. Bitters came from the shadow and hissed at Dib. Ms. Bitters had followed here class throughout their entire Skool lives no matter how short in her words 'to prepare them for their wretched lives.'

"But-but Zim is an alien!"

"Sit down Dib; I don't want to report you again."

"But!"

"No but's! you want the shock therapy again?" she hissed in a vile tone.

"No mam I am so sorry!" Dib panicky replied as he ran to sit at his desk obediently.

"Ms. Bitters" Zita raised her hand.

"Yes Zita."

"Zim doesn't look too good maybe he should go to the nurse." Zita motion to the pail alien in costume hiding behind his desk and twitching in a fetal position.

"Hmm. We can't have him contaminating the others, Zim go to the Nurse." Ms. Bitters pointed her long arm to the door.

"Yes mam!" and Zim rushed out of the room that continued to grow in his delirium.

In the hallways Zim ran passed giants who suddenly grew twice as tall as he passed them. Was and ceilings seem to grow to monstrous height as he made his way to the Nurses office. He finally made it passed the giants and sat on one of the waiting chairs as the nurse's helper froths at her mouth…

"Hmm I knew I forgot something…" he muttered looking at the foaming mouth lady.

The nurse who was a kind lager set woman waked up to Zim with a big smile.

"Now what's wrong with you today?" She bent down to his level to get a good look at him.

"Zim demands to be taller to fit in with the other taller smelly human dirt babies!" was the obnoxious reply.

"I got just the thing for you dear!" she patted his head and walked off in to another room to get something. She came back with an unusually large syringe filled with and unknown green liquid.

"We just got this experimental growth accelerator that hasn't been thoroughly tested yet!" she replied in a cheery tone as she slowly walked toward Zim with a creepy smile on her face. "Now hold still…"

"EEYYYYAAAAAHHHHHH!"

"There now that wasn't so bad!" the nurse smiled at Zim who was rubbing his sore thy.

"That's it. How can one painful needle injection help Zim grow? Tell meeeee…"

"Well when your body releases hormones it will trigger the drug and you'll sprout up like a weed! Drink a lot of liquids and don't eat after midnight!" she patted his head as a confused Zim limbed down the hall.

As the final bell rang the horrible building emptied itself of its students running out of its doors and jumping out of the windows. Zim was caring a human biology book planning to do some research on human growth. Irkens and humans are similar perhaps growth could trigger the same way? However Zim did not get far when Dib appeared out of nowhere landing in front of him.

"EEPP!"

"Studying up on organs Zim? I won't let you get away with it!"

"You speak non-sense to Zim! I am merely doing homework." Zim took a step back. But Dib took a step forward.

"Hey look its bigfeets!" Zim said pointing in a different direction.

"Huh?" Dib followed his hand movement before noticing it was a trick and his nemesis was running in the opposite direction.

Zim clutched the book to his chest as he ran for all he was worth down the streets of the filthy city. Unfortunately for Zim Dib's increase growth made him faster!

"AHHH! Stay away from Zim you filthy Dib-stink!" Zim screamed back at Dib who was quickly gaining ground with his larger gait.

Another unfortunate event happed to Zim that day. As the Irken quickly turned the corner Zim failed to see Dib's terrifying sibling Gaz waking home. She had grown much taller that the two boys that were in pursuit of each other and was happily paying her Game Slave III till a green blur hit her at full force.

Zim crashed on top of the petrifying purple headed girl and knocked her beloved Game Slave III out of her hands. As Dib rounded the corner the cracks and snaps of the electronic game dying echoed through the suburb. Dib looked down in disarray at his death sentence under his boot. And felt his heart stopped.

"Uhh Gaz….sor- WAAA!" in less than a blink Gaz had him on the ground. Her boot was on his chest and eyes full of fiery hate. Dib faked being unconscious hoping to ease her hostility.

She then slowly turned to Zim in an eerily fashion eyes blazing dangerously.

"Your turn…" she smacked the Irken on the face leaving a dark green mark on his cheek and making him stagger.

The Irken Invader's eyes widen and his hands shot out before he realized it and smacked Gaz on her rump! Gaz gaped at him in shocked and went to punch him. Zim managed to grab her fist in his claws before his face. Looking in to her shocked face no longer was a stinky human worm baby! But a vision of warrior beauty! His antennas managed to worm their way through his wig and began to twitch.

"Huh?!" In retaliation she used her other fist.

He managed to catch that fist as well. Having her hands secured in his claws she then tried to step on his foot. He stepped back and she tried his other foot. Soon they were doing an unusual waltz each moving in jerky movements as Gaz tried desperately to beat up Zim but with his claws securely clung to her fist in was impossible. Zim's antenna was twitching nonstop absorbing the female pheromones Gaz was unintentally releasing making the Irken light headed and giddy.

Gaz was becoming more and more irritable she finally jerked her had free and reached up to his head and yanked his right antenna.

"KUUUuuuuuurRRRRrrr..!" Zim made an unusual purr as brilliant colors flashed in his eyes his body shivered in pure delight before finally collapsing on his right side in bliss.

Gaz looked at the shivering alien on the side walk with malice, apparently that did not go as expected. In a huff she marched home with a dark aura circling around her as she moved away from them. Zim just sat on the pavement with dazed glossy eyes at the demonic girl. Dib seeing the whole thing stated to shudder at the intense stare the alien was giving his sister.

Gaz stormed home with her injured brother limping pitifully far behind her as anyone could feel the rage leaking from the girls pores. Dib was completely unsettled at the way Zim had looked at his sister, like a starving man looks at a steak.

Gaz had stormed into the house and locked the door behind her leaving Dib outside.

"Sigh… That's okay Gaz! I'll just go and sleep in Tak's ship!" Dib called to his sister.

He hobbled over to the alien machine and sat in the commander seat and began to look through the computer files to find any ting about Irkens and what was wrong with Zim. Unfortunately for Dib he had a feeling he knew where to start…

Irken mating ritual;

"Oh man please let me be wrong this time…" Dib said looking up to the heaves praying to any god who'd hear him.

The Irkens are a fierce warier race with a bonding ritual to match. When a female (Doe) is eager for a certain male's action she will make herself become notice with a sound slap of her graceful claws.

"Ohhhh nooo…." He began to panic!

If the male is interested he will playfully swat her back. As males are gentle toward there doe's when they go into must. If she is really interested she will then dance with the male. The dance is to test how strong the male is compared to her as a doe only wants a strong male to father her smeets. The longer a male can hold off the doe's attacks the more attractive he becomes.

"Oh Gawd…" Yes, the gods hates him….

If the male is her chosen she then grasped the male's right antenna signaling she's pleased with him and will be courted by him. If she were to choose the left antenna she is displeased and wants nothing more to do with him. The bonding is forever and not even death can separate mates. If one dies the other will stay widowed or die of a broken heart.

"Oh man! Zim's not going to be my brother-in-law! Is there any way to call it off?" Dib franticly scanned the script on the screen as his frantic searching turned up nothing in a flustered fit he banged his fist on the console. Unknowingly sending a distress call form the ship he was perched in.

Meanwhile in space;

In a large grey space ship there were an odd group of different alien species that were plotting against the Massive controlled by the Irkens. They all gathered around their leader an alien who once lived on Vort till the Irken armada conquered it and turned it into a prison/army base.

"All right the last time we went up against the massive…. WE FAILED HORABLY! I'M SURPRISE WE ANT DEAD!" the small grayish horned creature streaked at his comrades as they lowered their head down in shame.

"We need a new plan to defeat the Massive. Something more… more….." before he could say another word a bleep on the screen got his attention.

"Sir it's a distress signal from an Irken ship!"

"A distress call! We should blow them up… Wait! That's it! Our new plan we shall capture the Irken and use it as a spy! It's brilliant! Set quardnates to the distress call!" the small horned thing squealed in delight as the ship slowly headed to earth.

Earth;

Zim was in a happy daze as he walked to Skool the next morning. His mind firmly on the purple haired goddess of wrath that suddenly had control of him. She shall be his new conquest! In his pak he got a special courting gift for his little Doe.

He sat in class that day daydreaming of Gaz by his side wreaking havoc on the humans she so despise! He had seen her in action before and was awed by her fierce power and ability to control and manipulate anything electronic, like his escape pods that one time. Shed make a worthy mate and produce worthy smeets! He happily thought as a large grin appeared on his face.

Across from Zim Dib had no happy thoughts of that kind, he was determined to put a stop to Zim courting his sister. Staring at Zim he scowled at his love-sick glazed face like he had already won her over!

"Well see about that she's still mad about yesterday..."

"SLIENCE DIB!" Ms. Bitters snapped at Dibs mumbling scaring him out of his heroic thoughts.

"Now class, in the original Little Mermaid the sea witch cut off her tongue! Not like the magic of Disney that made her temporally mute. She was mute forever! And she didn't get the price she turned into sea foam. The story here is love leads to death and pain and sea foam…. Now go to lunch!" she hissed as she pointed at the door.

Inside the stained walls of the lunch room the normal atmosphere had turned eerie and dark. The students sensing danger were quiet and spoke only in whispers as not to make the one creating the evil aura madder. The one making the dark aura sat at the back of the lunch room glaring at her plate of untouchable food as it slowly turned to ash before her hateful gaze.

Zim made his appearance in the cafeteria and strutted in to the room with all the confidence in the world. How would she be able to refuse this offer? He noticed the other students had given her a wide girt along with her brother cowering over in the other side of the cafeteria. Zim adjusted his wig and walked over to Gaz who seemed to be on fire… literally.

"Ah Mm! Little Gaz, Zim wishes for you to be his love-pig thing!"

The entire lunch room became quiet as they looked at the homicide about to happen to the weird, sickly, green kid.

Dib had entered shortly after Zim wanted to stop him from going near his sister but panic was only short lived 'She's still piss about yesterday there's no way she'll say yes!' he thought eagerly.

Gaz's head slowly turned to the offending idiot who cause her rage and was about to release all the demon's from her own personal hell when.

"As custom dictates my little Gaz, Zim has a gift for you!" he handed the colorful box that had mix match wrapping paper and a ribbon on top.

Gaz snatched the box from Zim and ripped the paper from the gift. Her eyes widen and the demonic fire that was around her seemed to vanish and a golden holy light appeared above her as she reached for the gift.

"A Game Slave IIII, these aren't event out in America yet!"

"Not for the All Mighty Zim!" He gave her a big grin and pulled the game away slightly as she reached for it. "Not so fast little Gaz you haven't answered my question."

"RRrrrrr… why should I date you?"

"Well Zim is amazing and all mighty!... And I have the ability to get you any electronic devise you could ever ask for…" he said to sweeten the deal.

Gaz considered it for a second Zim dose have advance technology to doom her enemies… and get her video games.

"Alright Zim I'll be your girlfriend."

"Here you are my Doe!" Zim handed her the game and watched as she began to play it furiously with admiral determination.

"GASP!" all the other students looked in morbid fascination at what just happened! Gaz and Zim were dating! Everyone stared in shock as the new couple walked out of the lunch room. Zim had his arm wrapped around Gaz's shoulders as she played her new game with vigor.

"I always knew Zim was sick…"

"Dude! He tamed the Beast!"

"Yay no one's died.."

"NNNNNNNNNNNNNNNNNNOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOO! GGGGGAAAAAAZZZZZZZ! WHY!? HES AN ALIEN!

Okay this is my revised Upgrade! Story tell me what ya think please! Also I've read that moths use their antennas to find mates my smelling the pheromones the female gives off.