A/N: Oh look at this, ANOTHER story, whilst so many other still need doing! XD.

Well, for those of you who've seen the recent TMNT 2: Out of the Shadows trailer, you can tell most of the fandom is in an uproar of how excited they are to see it, including me! So I've been working on a crossover between 2014 and 2012 turtles! Through the chapters, I'll be mainly focusing on the 2014 P.O.V of the 2012 counterparts, and I'll call the 2014 turtles by their full names so you'll know which ones I'm writing about.

I hope you enjoy it!

I OWN NOTHING! IF I DID, I'D BE STUPID RICH.

Eh? Get it? 'Stupid Rich'?...ah forget it.

Four in the Same

Chapter 1

Donatello sighed with a slow shake of his head as he stood up from his chair, adjusting his glasses on the bridge of his nose as he paced the floor back and forth, hands twitching nervously as he clasped them together. He then looked over his shoulder to face the four of...them...watching him pace from the couch, looking very much like children about to be punished by their parents.

Of course, they weren't in trouble by any means, oh no. Well, at least not with him personally, or his brothers. But Donatello presumed that it was simply due to the whole situation in general, plus the drastic difference in height and muscle-mass, that made them a little apprehensive…which was a little ironic, given that it was he that was freaking out the most, despite his calm, cool and collected demeanor…which was quickly starting to crumble.

"So," he began conversationally, clearing his throat when his voice cracked about two octaves before he continued, gaining the attention of everyone in the room. "To recap: You four are us. Us, from another dimension, filled with an entire race of alien robots called the 'Kraang', ninja robots, more mutants, time travelers, alien dinosaurs…and you were accidentally transported to our dimension through a portal that you can't locate by yourselves, so you need our help to find the portal, find your version of Master Splinter, and get back to your dimension within forty-eight hours, or else you'll be stuck here forever. Am I missing anything?"

The four other turtles – other turtles from another freaking dimension that were literally just like them – turned to each other, sharing timid glances, before they turned back to Donatello and shook their heads, wearing bashful, hesitant smiles.

"No, uh…we think you pretty much got everything," said Other Donnie. And it was only then that Donatello realized that not only was this version of him lankier and not quite as built as he was, not only did he or any of them not wear clothes or glasses – lucky little squirt – and have three toes instead of two, but when he smiled, he had an actual gap tooth. A freaking gap tooth. Good lord.

"Hm," Donatello muttered, nodding his head and swallowing thickly as he pursed his lips together, whatever words he had left to say being caught in his throat with no chance of being released.

Well then.

"It's a little difficult to take in, isn't it?" said Other Leo – who was so much like his own older brother in so many ways that it hurt, with the same bright blue eyes, the same crooked understanding smile and that same composed air about him whenever he spoke to him or Michelangelo or Raphael on a bad day– as he looked up at him, shrugging one shoulder.

"Yes, yes, it is, thank you for acknowledging that," Donatello managed to get out, before he went back to his pacing, mumbling incoherently under his breath of how this was impossible, this couldn't really be happening and yet it was this is unbelievable there are actual other versions of himself and his entire family sitting RIGHT IN FRONT OF HIM HOLY CATS THIS AMAZING WHAT –

"Leo, I think Donnie's broken," Michelangelo didn't whisper oh-so discreetly as his brothers – his brothers – watched him from behind the couch that their counterparts were sitting on.

Standing on right side of the couch with his arms folded across his chest, Leonardo chuckled and shook his head. "Not yet he isn't," he didn't whisper back.

"But he's getting there," Raphael quipped on the other side, hands on his hips as he regarded Donatello with a growing smirk.

"I can hear you," Donatello snapped.

"We know," they all chimed, grinning as they shrugged in unison. Donatello narrowed his eyes at them all behind his lenses. Good to know that they could still make jokes and tease him even at a time like this.

The little one, the Other Mikey – the one with freckles instead of dimples, a high pitched voice that had yet to crack and smile brighter than a thousand suns when directed at you – giggled at the exchange, idly swinging his legs back and forth as he sat there. "Dude, that is so something we would do, am I right?" he snickered, nudging Other Leo with his elbow and earning a tolerant smile and a roll of the eyes that only a big brother – only a Leo – could ever hope to pull off.

"You don't say," muttered the Other Raph – with intense, burning emerald eyes instead of blue, mirrored cracks on the left side of his plastron and carapace that looked like they'd been inflicted by a sword, and a sneer that reminded him less of Clint Eastwood and more of a wolf desperate to lash out from its cage – as he rolled his eyes skyward and crossed his arms defensively over his chest.

Sighing again, Donatello trudged back hopelessly to his computer desk chair and let himself plop into it, lifting his glasses off before rubbing a hand over his eyes. It was almost two in the morning, far too early to be learning about other dimensions and other versions of his family, and the purple clad turtle was exhausted in every way imaginable. And Splinter hadn't even come home yet. "I'm sorry, I really am, I'm just…this shouldn't be – can't be possible," he said.

Putting his glasses back on, he looked back at the four of them again. "How are you guys not freaking out about this? This is huge, possibly the greatest scientific discovery of all time and yet – "

"Trust me, we get it," Other Donnie said, holding up a hand as he stood up from the couch, offering Donatello another gap-toothed smile as he approached him. "We've already been through the whole 'oh my god there're other 'us-es' that exist' thing. We know exactly what you're going through, and believe me, it wasn't any easier to believe," he added with a weary look that showed he really had been through it all. And probably to the same 'holy crap science' extent that Donatello was currently suffering too, since they were, y'know, the exact same person.

"Yeah dude, we totally get it, yo," Other Mikey added eagerly, practically bouncing on his seat and jostling Leo and Raph on either side of him. "We've seen, like, tons of other versions of us. We even saw this one dimension where these two guys made a cool lookin' comic book out of us, and we even had a dorky cartoon series – ooh, I think they even made live-action movies of us with guys in giant turtle suits and Raph says 'DAAAAAAMN!' –"

"MIKEY!" the three other-turtles barked, making little Mikey – even Michelangelo out of instinct – flinch backwards as he clamped his mouth shut.

"Now is really not the time for that," Other Donnie said, pinning Other Mikey with an insufferable look that Donatello had seen and done a thousand times in his lifetime. In response, Other Mikey grinned timidly and shrugged with a soft "sorry" under his breath. Other Raph then smacked him upside the head, to which Other Mikey responded by sticking his tongue out at him. Other Leo shook his head, pinching the space between his brows with a long-suffering sigh.

However, despite the truth of Other Donnie's words about the sheer direness of the situation they'd found themselves in, Donatello couldn't help but smile a little at the exchange, visibly relaxing as he watched them bicker with one another. They all looked so different compared to him and his brothers; their size, their voices...everything about them was different…but that was all physical. They looked different in nearly every possible way, but their personalities, their quirks, their brotherly bond that hid the pure undying love and affection for one another underneath relentless teasing and banter and 'I will pound you Mikey' threats…

Everything that made them, well, them, was still there.

It didn't matter that they were from different dimensions, because the eight of them in this room were still very much four in the same. They were still brothers. They were still family.

And as he shared a knowing glance with his other brothers in the room, it was clear that they knew it, too.

"So, now that we've gotten all that out of the way," said Other Donnie, turning back to face Donatello with another smile that was both apologetic – probably in Mikey's stead – and sincere, "does this mean you guys will help us out?"

Letting out a final breath, to release the remnants of the bubbling tension and confusion, Donatello grinned. "Well, it would be kinda stupid not to. After all, you're us, aren't you?" he said.

The surprised look on the other turtle's face was almost like looking into a mirror, before he grinned back, his humorous chuckle hiding the relief that flooded through him. Behind him, his brothers were grinning too, sharing hope-filled glances with one another that, oddly enough, spread a warm feeling through Donatello's chest.

Then he stood up, putting on his best impression of Leonardo as he put his hands on his hips, smiling down at his shorter self. "Let's rock and roll, boys," he announced proudly.

He heard a chorus of loud smirks float across the room, all of them coming from the other six turtles as they shook their heads, both Raphaels' slapping a hand over their face. "Man, that is so damn corny," the larger Raphael said.

Donatello frowned, crossing his arms defensively. "Hey! You never said that whenever Leo says it!"

"That's because it's cooler when I say it," Leonardo boasted, earning a muffled laugh from the smaller Leo.

"Alright!" Other Mikey crowed, jumping up from the couch as he punched the sky with glee. "Y'all better watch out, Kraang! 'Cus the turtles are comin' at ya! BOOYAKASHA!"

Four sets of eyes stared at the freckled turtle in bewilderment.

"Booyakasha?" Michelangelo repeated, raising a brow.

"The hell does that mean?" Raphael muttered.

"Doesn't sound right," Leonardo mused, shaking his head.

Donatello was inclined to agree with all of them as he made a face. What kind of catchphrase was that? It was weirder than 'Cowabunga', and that was really saying something.

The smaller Mikey blinked, looking at each of them in confusion. "What? You guys don't say that either? Dude, are we the only ones who say 'Booyakasha'? Bummer."

A/N: ADVENTURE! I hope you guys enjoyed that and more are on the way! :)