Characters: Jhonen V. Although I have searched through his garbage for three years I have yet to find the rights to Zim. MUST KEEP LOOKING!
Story: Direct plagiarism from the fifty million other people who have done this. Particuarly, Invadingangel whose story KICKS MUNKY BUTT! (In a good way)
Anyway yur all bored so I write ficcage now.

Dib had finally found the one flaw in Zim's defenses. It was, obviously, that Zim wasn't very bright. And after many days of searching the internet and every occult book that he owned that Dib found exactly the way to exploit this. And so it begun, on a nice day that was sunny but deceptive.

Clouds were off on the horizon, making Zim a bit nervous, but he had thoroughly soaked himself in paste, so the worry was not overwhelming. No, the overwhelming worry was that Dib was standing at the edge of the security's perimeter, screaming at passersby that Zim was an alien.
This had to be stopped.
Thirty seconds later, Zim ran out his front door, his contacts in and his wig on a bit crookedly. He then set about tackling Dib and beating his head against the ground. Zim had finished the first and was beginning the second when Dib smacked his face. It was not good to bitch-slap a member of the Irken Elite.
"YOU'RE GOING TO DIE DIB MUNKY!" Zim screeched.
"No I'm not because I set a spell on myself. I'm invincible."
"Eh? What sorcery is this to defeat ZIIIIIIIIMM?"
"It's a really nbeat spell which makes me invincible. The only way to make me… uh… vincible is to get me to say the counter spell."
"What is this… counter-spell?"
Dib glared, although this was going all according to plan.
"I have it written here, but I would have to say the magic words, and then you would have to read this paper. Then I would be completely at your mercy. BUT IT'S NOT GONNA HAPPEN SO BYE!"
Dib jumped up off the ground, and sauntered off, 'accidentally' droppiung the sheet of paper in the process. Zim, in an act of extreme intelligence scooped up the paper.
"Dib-munky! What would those words you have to say, what are they?"
"Why do you want to know?"
"Um… I am… curious?"
"Oh, well then. Hoochie-koochie spooptie pooptie."
Zim glanced at the paper and then read off the words it said there. I won't tell you what they are or I'll have ten million people casting spells with their friends. I don't want anything that bad on my conscious till I'm older.

A few drops of rain dropped down, closely following the two boys. They had fallen to the ground, unconscious. Lightning flashed, hitting the two of them, but that was just coincidence. The rain fell harder, diamonds of light flashing against the suddenly black sky. It was really cool looking which is good, because nothing much was happening with Dib and Zim right about then.
Magic is not as neat as it looks on TV.