So this has been an idea I've had for years at this point with this AU and I originally wanted it to be a spin-off one-shot but decided to do this. It was also going to be an anniversary thing too. Doesn't affect the plot, but I think it is fun. Hope you like it too!

"So you're banned from the family reunion?!" Stan shouted over the sounds of the dirtbike as they sped across town.

"Yeah, I beat up my cousin at one a few years ago!" Kyle replied as he sped up on the road.

"Why the hell do you do that?"

"He was annoying me! Also, he was like a living Jewish stereotype, can't believe we have the same name."

"His name is also Kyle?"

"Fucking hate that, like ya couldn't have found something else, it made it a lot worse since people liked to joke about us being alike, which we were NOT!"

Stan chuckled at his boyfriend's rant, the redhead's mother had just left this morning to go to Jersey for a family reunion, Gerald had work and Ike didn't want to go, and Kyle had just told him the story as to why he wasn't allowed to come. Which the redhead didn't seem to mind, preferring to stay home the rest of the holiday after that camping trip.

The two were just planning on riding around for a while till they got bored and probably went to go see a movie. All was going well, only for a blue vortex to suddenly appear in front of their path, the two teens watched it appear out of thin air and screamed. Kyle tried to turn to swerve, but it was already too late and they entered.

The next thing they knew they were falling out of the sky, thankfully it was short, and they landed on the snow. However, Kyle was the first to land, which was followed by Stan landing on top of him, elbowing him in the gut upon impact. He groaned in pain as he looked up only for his eyes to widen as he saw his bike hurdling towards them, he wrapped his arms around Stan and rolled over, avoiding the crash. He did wince at the sound though while he held Stan close, not hearing a voice not far off.

Kyle tried to catch his breath, but it was a bit difficult with his helmet on, probably the same for Stan since he could hear him. They lay like that for a minute, trying to gather their thoughts and ask what the hell just happened, only to hear crunching snow of footsteps and a voice, a strangely familiar one. "Hey, are you guys okay?"

He turned his head to look only for his breath to hitch. There was a teen that looked just like him wearing a bright orange coat and green hat, like the ones in his closet, and he could see red curls sticking out of some of the edges. He glanced at the person next to him and the guy looked just like Stan if he wasn't goth.

Why does he look like a jock?! Like he was wearing a South Park Highschool sports jacket!

"Hey are-"

"You have got to be fucking kidding me."

Kyle glanced at his helmeted boyfriend as he got up, escaping his grasp, Kyle followed after, finally standing up out of the cold wet snow.

"Uh, what?" The Stan look-a-like asked as he glanced at the other Kyle.

Kyle looked at his goth boyfriend as he started to take off his helmet, so he followed suit with his own. With their heads how free, the look-a-like teens' mouths dropped with the look-a-like Stan muttering, "Holy shit."

The look of shock would've been hilarious if they weren't in the same state.

"Hey what the fuck is taking so long!" An annoying voice shouted, they all turned to look and who they saw made the goth and Jersey redhead tense.

Eric fucking Cartman.

He stopped and looked in between the two pairs only to yell, "Are you fucking for real!? Two Khals! What the-"

He was cut off when Kyle without the hat pulled out a switchblade and took a step forward with his teeth bared. "Choose your next words wisely fucker. Don't think I won't gut you like the disgusting pig you are."

The overweight teen took a step back as the new Kyle pointed the blade right at him, he looked like he was about to say something but cut himself off by the sea-green eyes glaring daggers into him.

"Whoa, hey you should-," The jock-looking Stan tried to de-escalate the situation but didn't get far as Cartman backed up and said, "You know what, screw you guys, I'm going home!" Then proceeded to march off, with Jersey Kyle's eyes glaring at every step he made.

"Dude, what the fuck?"

He turned and looked at the two look-a-likes once Cartman was out of sight and said, "Where the actual hell are we?"

Kyle and Stan sat on the couch of orange and green wearing Kyle's couch, with the jock Stan sitting on a chair staring at them. It wasn't really rude since they kept staring as well. Sounds could be heard coming from the kitchen as the other Kyle was making drinks. "Soooo, you're goth?"

Goth Stan gave his counterpart a dead stare and replied, "Obviously."

"Right..." the jock-looking teen rubbed the back of his neck as he looked away. It was very awkward.

Thankfully this world's Kyle returned with drinks, the jersey and goth took the offered drinks and so he went and took a seat on the arm of the chair his Stan was sitting on. "So tell us how you got here? Maybe then we can figure out how to get you back."

Goth Stan took a sip of his drink and stated, "We were riding on Kyle's bike when this weird portal thing opened in front of us, and was too late to dodge it."

"Was that some of the weird shit you said happens in this town?" Kyle with a slight Jersey accent asked as he finished his drink.

"Barly even the tip of the iceberg."

The two teens on the chair looked at one another before Jock Stan asked, "Do you not know about South Park's history?"

Jersey Kyle sighed as he leaned forward, "Just moved here a couple of months ago, got expelled again, and South Park was the last school that'd have me."

"Expelled?!" Other Kyle yelled, a look of shock and horror on his face at the idea.

"Uh yeah, got into fights, caught smokin' weed, vandalized the walls...why are ya lookin' at me like that?"

Other Kyle looked like he was about to faint, making his Stan laugh, "Guess this Kyle here is a goodie-goodie."

"And yours is a jock," Jersey Kyle quipped back.

Jock Stan ignored the comment as he thought about what he said about just moving to town, "So wait, you didn't grow up in South Park?"

The two interdimensional counterparts looked at the two, "No, honestly we had to move a lot with how many times I got kicked out of school."

"So you weren't raised in Jersey either?" Other Kyle asked.

"Lived there till I was three."

"Then why are you so...Jersey?" he motioned to the Jersey counterpart's body, lightly pointing out the black unzipped jacket over top of his signature tanktop.

He didn't have an answer for that. "This is how I've always been?"

Other Kyle looked at him oddly, "Huh," then turned towards Goth Stan, "So you were raised in South Park?"

The goth nodded with his usual dead stare, "Yup...hate every moment of it."

The jersey boy smiled as he wrapped an arm around the goth and pulled him closer, "And once we graduate we're ditching."

"That bad?" Jock Stan asked, curious if their South Park was just as bad or worse.

The goth shrugged, "It's got better recently, mom divorced Randy and we moved back into our old house, but that doesn't mean I don't wanna get out of that shit-hole dead-end."

"Divorced huh? I wish..."

This got a response, "Yours are still together?"

Jock Stan nodded, "Yeah, I think it's gonna happen soon...I hope."

"Oof, sorry."

"So you guys grew up together?" Jersey Kyle questioned.

"Yeah, been best friends for as long as we can remember." Other Kyle said with nostalgia and a smile.

"That's adorable, are you two dating or what?"

That made the two on the chair pause, "Huh?"

The two on the couch blinked, "Okay so you're not dating."

"And you are?!" Both were now beat red, making the jersey boy grin, "Yup, have been since New Year."

"After we fucked," the goth added, chuckling at the sight.

"Yes after we fucked." The room fell quiet other than the slight laughter coming from the interdimensional travelers.

"Hey, guys what's Cartman yelling about-" A familiar blond in an orange parka walked in through the doorway only to freeze at the sight. After a moment he sighed and ran a hand through his hair, "So that's what that guy was on about." He rested his eyes for a moment, "Portal?"

The counterparts looked at one another, the previous bombshell was forgotten, before looking at Kenny, "Yeah."

He sighed, "Okay, so you guys have an hour till it should open again, for you to get home."

"Uh, Ken? How do you know this?" Other Kyle asked.

"Remember that summer I worked at Dr. Mefisto?"

"Oh...why is he still around?" Jock Stan grumbled as he leaned back in his seat.

"Heya fellas!" A new voice came from the door next to Kenny, making the goth freeze. "Butters?"

A shorter blond in light blue appeared, "Eric was throwing a fit so I came to see what was going on...Oh."

"Short version Butters, multi-verse," Kenny explained as he patted the shorter teen's head.

He just smiled, "Neat-o!" He walked over in front of the counterparts, "Hi! It's nice to meet you I'm-," he was cut off when the goth stood from his seat and hugged the shorter boy, confusing, most, of the people in the room.

"I'm glad to see you're okay..." the goth whispered as he pulled away.

Confused and wanting answers but probably won't answer them in front of the boy in question, Other Kyle asked, "Hey Butters, you care to get us some more drinks?"

The blond turned and smiled at the hat-wearing counterpart, "Sure Kyle!" He skipped to the kitchen.

Kenny had long since closed the door and stood by the chair and asked, "What was that about?"

The goth looked hesitant but Kyle intertwined their hands, making him feel a bit better, "Our Butters is dead...Cartman killed him."

"What?!"

"Yeah, I didn't know the kid, died before I moved there, but Cartman started some fuckin' cult and killed people in it," the jersey boy added bitterly. "Tried to kill Stan too. Was able to stop him though. His fat ass is in prison now."

The others looked at the two in shock. That was horrid.

"I mean I know Cartman is a dick and he's killed people before but Butters and for the sake of a cult?" Kenny muttered, trying to find a reason, only to find that yes, this was a possibility. "Nope, he would."

"God, I get why you want out now and why you reacted that way towards our Cartman," Other Kyle voiced.

"No shit," Goth Stan sighed as he leaned his head on Jersey Kyle's shoulder, with the redhead releasing the hold of his hand and how petting his raven black hair. "I'm back!" Butters called out as he walked back into the room with some cans of pop and handed them to the others, keeping one for himself. "So until you guys have time to go what's your place like?"

Kenny checked his phone and said, "We got awhile, so care to tell us who dating who in your world?" He finished with a perverted grin.

The jersey and goth boys shared a look and turned to the blond and answered, "You're dating Clyde."

Kenny blinked, "Huh?"

The two got onto the bike, which was in great condition despite the crash, and put their helmets back on, "Are you sure it'll appear?"

Kenny nodded, "Yeah, this happens like once every few years at the same time. Just the first time anyone's actually fallen through one of them."

Jersey Kyle looked at him with a concerned look but it was covered with his helmet, "Isn't that ya know, dangerous?"

Kenny shrugged, "Ask the scientist who sticks two asses on everything."

"He does what?"

Goth Stan rolled his eyes and looked at his and Kyle's counterparts. It was so weird. Seeing a what-if version of them. It was odd, and he could see the appeal if he had Kyle with him all of his life, but given the life he's lived, he wouldn't have it be any different. Despite how much of it sucked.

The two walked over, "So this is goodbye?" Other Kyle asked getting Jersey Kyle's attention.

"Yeah, just add this to the list of weird experiences in South Park," Goth Stan stated.

"It was nice meetin' ya!" Butters exclaimed from his spot next to Kenny, goth Stan smiled sadly behind the helmet, "It was good seeing you too Butters."

"This had been fun, but never again," Jersey Kyle remarked, "I think I've done had enough of South Park weirdness for the year."

The counterparts laughed, "You'll see," Jock Stan commented.

"Hey if you see your Cartman, punch him in the face for me!" Other Kyle voiced as he held his arm up in a fist.

Jersey Kyle grinned and replied, "Oh ho, he'll get what's comin' to him if I see his face again."

The portal then opened not too far in front of them, "Go!"

Kyle and Stan on the bike gave the group one last wave before shooting forward, right into the portal, which closed right after they entered. Leaving the group alone out in the snow, "What a day," Kyle sighed.

Stan placed his arm on Kyle's shoulder and put some of his weight on his best friend. "You said it."

"So they're kinky?"

Both teens' faces turned a bright red, already remembering how their counterparts were dating. They were more than likely kinky with those nicknames that even made them blush.

"Kenny!"

The blond laughed at their reactions, while Butters laughed too, but only because Kenny was.

So there was so much more I wanted to write for this chapter but I felt it would have severely knocked off the flow. So I'll list some of the ideas here...

Cannon Ike walks in and sees Jersey Kyle, so the kid runs away screaming.

J! Kyle learns about 'Kick the baby', he is not happy about that.

Admitting their past relationships.

Bits of their histories. Like how J! Kyle's family got Ike later on, and G! Stan's band with the goths.

C! Clyde shows up and learns a bit about his counterpart.

And a few others I can't think of.

But I had fun with this one, and I'm curious, what did you guys think of this one?