In a different dimension, we find Ben Tennyson fleeing for his life.

'Crap! Gotta hide, gotta hide!' He thinks, he looks around only to be reminded the only thing in this dimension besides a massive void was a two meter across path consisting of only blue gravel and nothing else. 'Heh, why am I not surprised? How the hell did this happen again?'

Earlier...

Dexter stood in front of a blackboard furiously wiping out it's contents and scribbling in replacements. 'Change the equation here, add a zero there, remove this formula, give x a value... there. that should blow up in my face quite nicely.' He thought with pride. And then Ben materialized out of nowhere and interrupted his evil mischief with an enthusiastic "Hey Dex! How's it going?" almost giving him a heart-attack. Therefore, he eloquently replied with "What's it to ya? You fucking retard."

"Eh? Retard? Did you stay up all night again?" Ben asked, confused and slightly startled.

"Do I look tired to you, dumbass?" Dexter retorted in a rather annoyed manner.

"You really should be nicer to our dear friend..." a voice reprimanded from behind them.

It was a second Dexter! Ben was dumbstruck. However, now he noticed why something had felt off when he approached the other Dexter. They looked slightly different! The first Dexter's hair was styled straight and he wore square glasses, whereas the second Dexter's hair was curly, just bordering on bushy, and wore round glasses. He was holding a wrench and had a hand on his hip, perfectly mimicking a disappointed mother.

'Son of a bitch. He actually fixed the bot that fast? Should have trashed it better.' The first Dexter mused.

'Oh, so Dexter has a twin. Wait...what?'

"Um...Dex...ters?" Ben accidentally puzzled over out loud.

"That's correct Benjamin!"

"Shut up, kissass!" First Dexter snapped at his much nicer counterpart, and all because he was being encouraging. The poor dear.

'How could I get drunk without noticing?' Ben pondered "Mind explaining?"

"Teehee, certainly!" Polite Dexter cutely giggled.

'Is he...trying...to act cute?!' Rude Dexter was rather alarmed and mildly offended at this turn of events. PD cleared his throat.

"A few years back we attempted to remove DeeDee's rude trait, so, we created..."

-The Opposite Effect-

"...The Rude Removal System!" a young Dexter enthusiastically announced to his sister, referring to a large and complicated machine behind him. "Okay, listen," he started off, gesturing to a simply drawn chart "to simplify this: DeeDee minus rude equals happy Dexter."

DeeDee was offended "Oh yeah? You're the rude one, brother!"

Dexter gave her a rather undignified look. "It is you that is rude!" he spat.

"No, you!" DeeDee pointed at him.

"No, you!" Dexter pointed back.

"You!"

"You!"

"You're right, brother," DeeDee relented "I am the rude one. See?" she stated, giving him a swift and hard kick to the rump that sent him stumbling right into the RRS's control panel. Enraged and rushing to retaliate, he did not notice he had hit the "ON" button.

And so they ended up in a death match fulled with punches, kicks and dirty tricks until, once again, Dexter was sent flying, this time into one of the glass chambers of the RRS. Eager to continue kicking nerd ass, DeeDee jumped in after him.

"RUDE REMOVAL PROCEDURE BEGINNING NOW." Computer announced.

-The Opposite Effect-

"Instead of removing the rude traits, it personified them." The film in the projector rolled to a finish, showing a picture of rude Dexter and DeeDee in the other glass chamber. "And thus, we are the polite and rude alter-egos," Polite Dexter concluded.

"But if you're alter-egos where's regular Dexter?"

"Well, you see, it was more of a separation -as we just witnessed- than cloning."

"Then did you try going through the machine again?" Ben inquired, sitting up in his green bean-bag chair.

"That is not possible." PD stated, munching on some popcorn.

"Why not?"

Then there was a sudden massive explosion behind them. PD was startled straight out of his seat. He moved so fast his glasses fell off. "Einstein's ghost! The lab!" he exclaimed, rushing to prevent further damage. As he went RD came strutting in and gracefully plopped himself into a still shell-shocked Ben's lap.

"What, exactly, do you think I sent to hell first?" He questioned smugly.

"Wasn't that a bit uncalled for?" Ben questioned, not at all disturbed at being used as a chair. Ben didn't even have time to blink before he was being straddled and glared at with all the malice RD had in him (which was a lot). "Well...why not just... build a new one?" Ben asked, getting back to topic. With each word RD's glare got more and more demonic, Ben could swear he felt the room catch fire from it's intensity.

"We can't." PD stated, covered in soot, he fell back into his purple bean-bag chair, giving an exhausted sigh.

"Why not?" Ben inquired, grabbing RD by the face and shoving him from Ben's lap to the floor. And from said floor RD answered with "Dumbass over there lost the blueprints." and under his breath he moaned "Thwarted by my own polite self."

"You guys don't have a back-up? That's not like you."

"That's... where things get a little complicated..." PD sheepishly informed.

"Like hell it does!" RD shouted outraged and shoved himself up from where he was sulking on the floor "There's a hard-copy in the old abandoned part of the lab. But there's a group of fucking insane robots there that put a price on out heads. Those ungrateful motherfucking cu-"

"They're just after you?"

"Well, yes. We... we abandoned them after inventing them and... they got rather mad at us for it." At least PD was apologetic about it.

"No sweat then! I'll just go over there and get them!" Ben volunteered.

"You're serious?" both Dexter's exclaimed, one touched, one outraged (can you guess which is which?).

"Sure! I'll be back before you even notice I'm gone!" He dialed the omnitrix to Jeray and slammed the dial down. He was just about to take off when he remembered something rather important. "Uh...which way?"

Both Dexters just pointed in the general direction. And Ben took off with a nonchalant "thanks" thrown over his shoulder.

"What a moron." RD stated.

"Oh we both think he's adorable and you know it!"

"Shut the fuck up!"