Geez, sorry, I meant to get this out yesterday, but I'm going a on trip and was preparing for that, I again meant to get it out this morning, but I got caught up finishing packing and cleaning, and then I had to head out, so here is the story! Finally!

"Ok, explain." Rex said shortly, glaring in turn at Charmcaster, Omnimatrix and Hybrid.
"Where should we start?" Hybrid began.
"Start at the beginning please." Agent Six said, and Charmcaster rolled her eyes.
"Well duh, which beginning?" She asked, as if it was obvious.
"What?" Rex asked, and Hybrid huffed exasperatedly.
"The first beginning—when we were born—the second beginning—when we started to become what we are now—or the third beginning—when we met and started exploring." He explained, and Agent Six answered immediately.
"The second beginning please." Charmcaster nodded and Hybrid shot six balls of a slimy green substance at the ground, which quickly formed 5 chairs and a table and hardened.
"Well, do want to spend the next, ohh, hour or so, standing?" He said expectantly as he, Charmcaster and Omnimatrix sat down. Rex glared at them but sat down anyway, Agent Six following his example, minus the glare.
"Ok, I'll start. A long, long time ago, I lived in a town called Amity Park, which had a bit of a ghost infestation, thanks to my parents Ghost Portal, which was an artificial portal to another dimension, the Ghost Zone, or the Infinite Realms, whichever you want to call it. At first, it didn't work, because my father, in his ever infinite wisdom, somehow managed to build it so that the button to turn it on was inside the Portal. I was down in the Lab with my friends Sam and Tucker after school one day, when Sam convinced me to go inside it. I tripped on a wire, reached my arm out to brace myself on the wall, and hit the on button. I was shocked with something like… oh, say, 1000 volts and just right amount of current to kill me, and flooded with enough ectoplasm to make three human sized ghosts. Not a pleasant experience, as you can imagine. Somehow, we're still not sure, I lived. Kinda. I'm a hybrid, human and ghost. Don't bother looking me up or anything though, we'll explain why when we've all explained how we got our starts. Omnimatrix? Charmcaster?" Another smirk flickered over his face. "Who wants to go next?"

"I'll go, mine's more interesting than her's anyway." Omnimatrix said, grinning at Charmcaster, who flicked her wrist and made him fall off his chair. He glared and jumped on her, forcing her off her chair and pinning her to the ground. She retaliated by flipping them over and getting up, 'accidentally' stepping on his chest. He growled and his skin began to tinge red, but Hybrid, who had been looking on with a sad and slightly amused smile cleared his throat giving them both a pointed look. Charmcaster dusted herself off and primly sat down again. Omnimatrix blushed as the red tinge faded from his skin and sat down again, looking rather like a scolded puppy.

"As I was saying before I was interrupted" Omnimatrix said, "I was on summer vacation with my cousin and my grandfather, we were gonna go on a tour of the country, and the first night we were outside, talking by the campfire when I saw a meteor, didn't think much of it, but then it changed direction and disappeared from view, I decided to go see if I could find a spot where I could see where it went, so I went for a walk, right into it's path. It crashed and almost crushed me, I went to see it when the dust cleared and it opened up. There was, what looked like watch, inside and it latched onto my wrist. Turns out it was an alien weapon called the Omnitrix, and it had the DNA of over a million aliens in it. Props to you if you can figure the rest out." Omnimatrix finished, a reminiscent smile on his face.
"I thought the expression was 'ladies first' not 'ladies last', whatever, my turn now." Charmcaster said teasingly. "My story isn't as long as the boy's, I was in Salem with my cousin and grandfather when a fire started nearby, my cousin went to try and help, and I went to help calm down the animals because they were freaking out, and one of the horses ran toward the fire, don't ask me why, with me on its back. The person who had set the fire was a witch, or something like it, she's also my namesake, and she somehow switched our bodies. This resulted in a whole big mess that I won't go into, but when everything was back to normal I managed to keep her spell book. Apparently I had some alien relative who could do magic, and my grandmother was part of an alien race who were beings of pure energy." Rex and Agent Six sat there for a minute, slightly stunned.
"So, how did you meet?" Agent Six said, visibly rattled, but keeping his composure.

Omnimatrix and Charmcaster opened their mouths, but Hybrid beat them to the punch.
"I'll take this one, it's been longer."
"That's not an excuse, we had less to lose, and we kept each other, you lost everyone." Charmcaster scolded.
"I was gone long before you were even born! It's been long enough." Hybrid argued.
"You remember their names." Omnimatrix said coldly. "When you can forget them it'll have been long enough."
"So? You still remember your grandfather's name, and your parents." Hybrid bit back, eyes flaring green.
"You remember His name, and the others you fought. You should have forgotten them a long time ago." Omnimatrix said, black veins creeping up from his wrists. Rex and Agent Six were quite confused, but a chill ran up their spines when Omnimatrix said Him. Hybrid sighed and nodded, slouching down in his chair.

"As I was about say. Me and Omni were cousins when we were alive, so we already know each other." Charmcaster said. "The thing you have to understand is, no power comes free. Every single one has a price. My price was my parents, they didn't like what I was. Omni's price was his humanity. Hybrid's price is his life. I am still relatively the same as I was when I started using my powers, Hybrid and Omni are different. Omni's biological body is mostly the same, as least in a resting state, like now, but he thinks differently. Hybrid thinks mostly the same, but his body is beyond different."
"What do you mean 'in a resting state'?" Rex asked, eyes flicking to the nearly faded black veins on Omnimatrix's wrists.
"This" Omnimatrix said, gesturing to himself, "is my default setting, so to speak. I can change, so can Hybrid, but not as drastically." Rex nodded and sat back again.
"My turn. We noticed something was changing when it had been three years and neither of us had aged, save mentally. I noticed that the Omnitrix was easier to control, and that the skin on my wrists had gotten darker, not tan dark, grey dark. Hybrid?" Omnimatrix said, glancing at the subdued looking, well, hybrid.

"Yeah. I noticed something was up when my parents took me to the doctor for a checkup and the results were… odd, to say the least. My temperature was comparable to someone who had spent a hour out in a snowstorm in a jacket and jeans. My heart was way slow, and I actually forgot to breath. I was growing fine, felt fine, but my heart simply, stopped beating. I suppose the human body can only function normally for so long after it's died. Stopped growing in my Junior year of high school, brain activity stopped the next year. I left for the Ghost Zone, lot of people thought I was kidnapped, only, only my friends and family knew where I went. I watched them all die, I got to see a few ghosts leave too, before I decided to see if I could find another dimension where I could start over. That's when I met those two." Hybrid said, pointing his thumb at Charmcaster and Omnimatrix.

"We didn't have it as hard as Hybrid, we'd left the planet a while after we stopped growing, but it was difficult losing our grandfather. Around… oh, fifty years later Hybrid showed up, and we put this little group together." Charmcaster said, moving over and allowing Omnimatrix to sling an arm around her shoulder. He raised an eyebrow at Hybrid. "If you think you're getting out of this then you've lost it completely." He groaned but smiled and trudged over the their chair, placing a hand on it and closing his eyes for a second, making it a small love seat. He sat next to Charmcaster and leaned into her side.
"So why are you doing this?" Rex asked.

Ok, so that was the second chapter, information on what exactly they're doing. I'm debating posting this story and then asking for suggestions on how it should end, because I legit have no idea. If I have done this, please review with ideas! Because it won't be finished till I get one. Also, I'm writing a story with a friend of mine, Bookworm (they don't have an account so it's going on mine). It's called Fandom Hunger Games! and it's a bunch of our favorite fandoms going at it in the Hunger Games (no Generator Rex, sorry), go check it out! It's really good, look it up, or check under Divergent/Hunger Games crossovers.