A/N: Ok, so I am a total Degrassi geek and I love the mini-sodes, especially the what if scenarios. And it got me thinking: 'Hey...what if Derek and Casey acted more like Lizzie and Edwin, and vice versa?' I'm going to write more to my other story right after this (I already started actually) I just had to get this out before then. Ha ha, let me know what you think!

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"Ugh, you're such a pig Edwin!" Lizzie yelled from her place in the hallway.

"Gee, what'd I do this time?" Edwin asked sarcastically. He didn't really even care, more or less just liked to bug her.

"Oh, don't act you don't know!" She hissed.

Derek and Casey looked at each other downstairs. Her mother and his father had retreated to their rooms already, not wanting to deal with the was sure-to-be-on-schedule fighting. They just smirked at each other. Unlike everyone else, they knew what was going on. They'd fight for a few minutes, stomp off to their rooms, slam their doors, then one would quietly sneak into the other's room, it was an almost predictable nightly activity. "Are we compiling data this evening?" Derek asked with a smirk.

"Well we have enough..." she trailed off looking over their spread sheets. "But extra data never hurt anyone, it would help us be more accurate." He smiled.

"Awesome."

Edwin and Lizzie were 14 at this point, they had been at each other's throats ever since the families had merged. Derek and Casey on the other hand had always gotten along. Even if they had their slacker and keener reputations. They seemed to balance each other out pretty well. She would help him with school and he'd help her have relax for once and have some fun. It was a good relationship they had.

They had taken up doing research of their family a few months after the merge, it was something interesting to do, and it was a great bonding activity. The individuals they were most intrigued by were Edwin and Lizzie, at first they did genuinely dislike each other. Edwin was a business hopeful geek and Lizzie was a soccer star who had no interest in his antics. In the beginning their fighting had been an opportunity to see how the two interacted and reacted to each other and situations. But they watched as it went slowly from genuine dislike to forced anger and fighting and hidden feelings.

They would almost purposely pick fights with each other, and at the time Derek and Casey weren't sure if it was just to tick the other off for their own reasons or if it was even deeper.

They watched them over time fight more and more until the one particular fight a few months back.

Derek and Casey were preparing themselves for another night of snooping and sneaking around to figure out what exactly it was that had been going on with Edwin and Lizzie recently. When they heard the fighting start up a little earlier than usual. They both tried to get to their hiding place in the game closet to get a good ear of what was going on this time.

The fighting was anything but normal that night. Edwin sounded like he was trying to be even more hurtful than he usually was. It seemed that Lizzie didn't know how to react to it, everything she tried to get out came out weak, she couldn't really fight back, she sounded like she going to cry instead of the strong girl she usually was towards him when they fought.

"I HATE you..." she said just loud enough for Casey and Derek to barely catch it.

"Good, I can't stand you either." Edwin spat.

"Why do you always have to do this?" she said straining herself, there was anger in her voice, but that seemed to not the dominating emotion. "We were actually having a good moment. We were getting along!" she sounded on the edge of tears, Derek and Casey gave each other confused glances. "I thought that maybe..." she trailed off, clearly not knowing exactly what to say.

"Well obviously you thought wrong." Edwin said, sounding like he was forcing it more than actually necessary. "We...us," he said pointing between the two of them. "Would never get along. It's never gonna happen, ok? So just...let it go." They heard him walking off and then Lizzie slammed her door. They heard loud sobbing coming from her room.

After a few more confused glances and some notes they were about to leave the closet when Derek peaked out the door he saw Edwin pacing the hallway mumbling to himself incoherently. Derek retreated back in.

"What's going on?" Casey asked.

"He's pacing the hall talking to himself." Derek said a bit confused.

"That doesn't make sense, after a fight he always goes to his room, just like she goes to hers. Then they let off some steam. And maybe after a while they'll be civil for a little bit until the next fight. This is totally out of character." she whispered her little rant, making confused faces, which made Derek smirk.

"Come on, as if anything is that simple." No matter how much they hung out, she over analyzed everything and he blew everything off. She had to make everything complex, and he just liked it to be as simple as possible. They were quite opposites, and how they got along amazed them. They had an occasional fight here and there, but nothing like their siblings.

After a few moments they heard someone walking quietly down the hall, they could only assume it was Edwin. Lizzie's sobs had quieted considerably by that point. There was a light knock on the door but Lizzie didn't say anything. After a moment they heard her door open and close softly. They waited a minute before they tip-toed quietly from the games closet and made their way to her door to eavesdropped.

"Lizzie," he sighed. "Look...I-" He said slowly.

"Go away." she said coldly, cutting him off.

"Come on..."

"I said go away, does that not get through your thick skull?" she said getting annoyed.

"Look, I'm sorry, ok?" He mumbled, obviously not comfortable with saying it. Casey was writing while Derek was listening, glancing at her every now and then to make sure she was getting all of it.

"I don't care, this time you took it too far. I knew you were an insensitive jerk, but come on."

"Oh god, would you just let it go?" he sounded as if he were rolling his eyes at her in annoyance. Casey could only imagine the look on her sister's face when he said that.

"Yes, I'm just going to let it go, because you didn't just treat me like crap for no reason. And you didn't just tell me you can't stand me-" Edwin cut her off.

"And you didn't just tell me that you hated me." He said in a mocking tone.

"With reason." she said after a moment.

"God, I don't even know why I bother, this is so damn pointless." They heard him coming towards the door and Lizzie stopped him. "What?" He tried to sound annoyed, but it just came out as confused.

"What did you mean by us? That it's never going to happen?" He didn't say anything, silence dominating the room for a few minutes. "Did you mean we couldn't be friends...or civil, or...?"

"Or what?" He asked curiously.

"You tell me." There was another pause.

"I...um," he stammered. "I don't really...I mean-uh. I don't know!" There was a moment of silence. Then there was movement. They heard shuffling but they didn't know what it was or what they were doing.

After that night, Edwin and Lizzie spent more time together. They were civil at times and fought the rest of it. Most were forced, few seemed to be very genuine. Not like their parents could even tell the difference, they weren't nearly as observant as Casey or Derek had been. They never heard Edwin or Lizzie admit to anything. Maybe they had left too early that night confused about what was going on to hear an sort of confession. It had taken them weeks to figure out what it really was. Maybe they hadn't confessed at all, they just knew. Like some sort of unspoken agreement.

After that fight they noticed secret glances and smirks. They saw a weird gleam in their eyes whenever they fought. The noticed both of their lack of interest in dating and going out. And if they did, it was together. As a "group hangout" or "each had plans at exactly the same time" nights.

They didn't really know that Casey and Derek had a clue. They didn't want their parents to know at all. None of their friends really knew either. It was their little secret.

Derek and Casey trudged up the steps to do their nightly activity. The only time they didn't do this was if they had a date or friends to hang out with, or if Casey felt especially like being a keener one night. This was their special bonding, which did receive notice from Edwin and Lizzie. But they never said anything.

They ducked into the closet and sat there for a moment. They heard the familiar noise of Edwin's door open softly. They listened intently as he tip-toed across the carpet to Lizzie's door. He knocked very softly before the door opened quietly then shut. But that night had been uneventful so they gave up on the research early. Casey was heading towards her room before Derek stopped her.

"Hey Case?"

She turned around and looked at him curiously. "Yeah?"

"You wanna hang out sometime?" She smiled as she stepped closer to him.

"We kind of just did, we do every night."

"Well, I mean like...hang out and not be cramped in that closet. You know, like listen to music, watch TV, whatever..."

"Like a date?"

"Psh...no, like," he thought for a moment. "Acting like normal friends." He laughed.

"That'd be nice." she smiled as she set the notebook in her room before the retreated downstairs to the living room.

Lizzie and Edwin peeked out of her door and smirked at each other, shaking their heads before shutting it again.

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A/N: Well, that came out interesting, if I do say so myself. Ha, ha. I want some opinions and what not. I was thinking, if this goes well then maybe I'll do a whole what if series. So gimme your thought. Thanks for reading!