Adventure Time!

by MyLittleBronyDude

Rating: everyone
Tags: Adventure Time, Main 6, My Little Pony: Friendship is Magic, Other, Comedy, Adventure, Princess Celestia, Crossover
Length: 2247

Finn and Jake get teleported by Magic Man! Will they ever make it home?

After a glorious battle, Finn and Jake have earned a long rest in their treehouse. Little do they know that Magic Man sent a portal into their doorway and sent them to Equestria! Obviously, hilarity ensues.

Published 2019-02-25 05:40:01 UTC
Last updated 2019-04-27 20:41:17 UTC

Magic Man’s Portal

“Man, Jake. That was mathematical!” As Finn the Human, hero of Ooo and best bud of Jake, did a frontflip to the door to the treehouse, they both started talking about who did what and why King Worm had to keep invading the Candy Kingdom.

“Yeah, Finn. Hey, you wanna play Portender Defender? I’m still the kiiiiiing!” As Jake the Dog, shapeshifter and best bud of Finn, said this, a crown appeared on his head.

“Hey! That’s a fleshy head crown.”, Finn cried indignantly, “Fleshy head crowns don’t count.” The two continued bickering until they decided to move the argument inside.

“Come on Finn, let’s go inside. I’m sure BMO is waiting for us patiently.” With that he opened the door, not once looking at the inside of the treehouse.

“Thanks, Jake.” Finn walked into the house, expecting to see all of their treasure, but instead seeing a portal that he had just walked into and didn’t have time to get out! “Whooaaaa!”

“FINN! Oh no! Finn just walked into a weird swirly portal! I need to go get him back!” With that he jumped into the portal, not once seeing a grinning Magic Man staring at the portal with intense eyes.

The journey to Equestria is a perilous one for all, and Finn was no exception. The trip left him reeling, with no idea where he was and a million gazillion questions chasing each other in his head.

“Whoa! That was some maximum skronky stuff!” As Finn staggered around, trying to stand, he realised that he wasn’t in the Land Of Ooo anymore. And, Finn had turned into a pony!

“Whoa! What the bunk? Why am I a lumping pony? Okay, Finn. You just gotta calm down and look around.” Finn turned his head to look around and saw a small town, complete with a castle. “Wow, this place looks a lot like the Candy Kingdom. Except without candy people. And Gumball Guardians. And PB. And a lot of other junk.”

“Hey, where’s Jake? He was right behind me.” Finn looked at his tail and started freaking out. “Whoa! I have a tail! Do I still have my backpack? Or my sword?” He tried to grab his scarlet sword but failed as he only had hooves. “Maybe if I think about it really hard... like super really hard...” Instantly, his horn lit up and his sword floated out of his saddlebags. “Ooh! I’ve got magics! Aw, yeah boiiii!”

“Aaaaah!” Suddenly, a yellow pony with wings (a pegasus maybe?) fell on Finn’s head, squashing him to the ground. “Hey, watch it, man! I only just got here! Who are you, anyway?”

“My name’s Jake. Nice to meet you dude.” Jake flapped his wings gingerly. “Do you think I can fly with these things, random stranger who just happens to look like my best buddy Finn?”

“Jaaaaaaaaake! It’s me! Your best buddy Finn! I can prove it!” With that, his horn lights up and his sword floats out of his green saddlebags.

“Oh. Hi Finn. Where are we?” Jake scratched his head with his wings and looked at his flank. “Hey, look! I have a butt mark! And by the looks of it, you do too.” Jake’s cutie mark was bacon pancakes, and Finn’s cutie mark was his sword. “Do you think I can still shapeshift?

“I don’t know, Jake. I think we should go find a monster and kick its butt!” Finn drew his sword surrounded by his magical aura.

“Yeah, that sounds fun. Let’s do it!” Finn and Jake ran off into the town.

Twilight was organising the books in her castle for about the twelfth time today when she heard crashing and swords. “I wonder what’s going on out there...” Twilight trotted to the window and saw two ponies fighting an URSA MAJOR! One of them was a yellow pegasus shapeshifting into a unicorn and shoot a spell and then shapeshift AGAIN into an earth pony and take a huge kick at the huge celestial bear. The other one was casting spells while slashing at it with a yellow sword, all the while jumping and back flipping and yelling intelligible things.

They say the scream that followed could be heard all throughout Equestria and shattered every single window within a 20 kilometre radius.

Twilight teleported to everywhere to find the other Element Bearers to send the Ursa Major back to its cave. “Come on, girls! We have work to do! There’s an Ursa Major in Ponyville and two ponies are holding her off as we speak. So, let’s see some hustle, people!”

As soon as they got there, Elements at the ready in case things got out of hoof, they saw that the Ursa Major was lying on the ground with the two ponies Twilight saw earlier through her window playing music. The yellow shapeshifter was playing a small violin with his horn that he probably shapeshifted into, and the beige pony was wearing a white hat, blue shirt and green saddlebags, all while playing a flute that seemed to be made from bamboo.

“Hey, who are you? What are you doing here?” As Twilight yelled out to them, she lit up her horn and teleported the Ursa Major back to her cave where her baby, the Ursa Minor, was waiting and crying.

“Oh, hello there. I’m Jake, a magic shapeshifting dog from the Land of Ooo, and this is Finn, adventurer extraordinaire and hero of Ooo. We’re best buddies and adopted brothers.” Jake floated his small violin into Finn’s saddlebags. “Where we come from, Finn here is a human wearing these clothes.”

The Mane Six were absolutely stunned. A thump could be heard, and when everyone looked for the source of the noise, they found a twitching Twilight lying on the ground.

“Twilight? TWILIGHT! Are you okay?” Twilight woke up to Pinkie Pie’s hot pink mane in her muzzle. The rumours were true. Her mane did smell like cotton candy. As she looked around she saw that the two ponies that called themselves ‘Finn’ and ‘Jake’ were still there looking scared. Well, not scared. Finn was looking curious and Jake was looking bored.

“So you two weren’t some crazy dream that I had last night, then?” At the sound of her voice, both Finn and Jake snapped to attention looking at Twilight. “Why are you two here? How did you get here? When did you get here? I have so many questions!” As she said this, she used her magic to push Pinkie off of her and stand up.

It was Finn that spoke first. “Well, all I know is that I walked through the door to my treehouse and then I fell out of the sky and landed here.”

Jake piped up to put his two bits in. “Finn walked through a portal and he didn’t even know it! So I went after him after a bit of an internal battle.”

Twilight almost fainted again. “Oh, why did this have to happen on cleaning day, of all days? WHYYYYYY!” And then Twilight fainted for the second time in as many hours.

Less Talk, More Fight!

After almost depleting the supply of smelling salts and one Celestia-sized teleport later, they were all in the throne room in Canterlot.

“So, let me get this straight. You two are from an alternate world where being a shapeshifting magic dog is normal, and the humans blew themselves and a big chunk of their planet out of existence with a nuclear bomb meant for a last ditch attempt to save themselves from an evil threat leaving only you?” Twilight had some weird days, and this one took the cake. And most of Sugarcube Corner as well. It even sounded weirder when said out loud!

“Is somepony talking about CAKE?”, screamed Pinkie Pie, party planner extraordinare and the most hyperactive pony in Ponyville. Who, for some strange reason, can read other ponies minds.

“How did you - oh, never mind. So, Finn, Jake. Was I right?” As she said this, a smile started to grow on Twilight’s face.

“Uh, yeah, actually. Wow. Nobody has ever managed to sum up our history in a way that made me feel like we are all idiots.” Finn rubbed the back of his head with a large hoof, looking very uncomfortable. Jake, on the other hoof, was looking bored. So bored, in fact, that he was about to fall asleep.

“Yay!”, Twilight said. “Spike, take a note. Never tell Lyra Heartstrings or Trixie Lulamoon about the humans or what they’ve done.” All of a sudden, out of nowhere, Spike materialised out of nowhere and wrote it down.

“AAHh-oh, that’s a baby dragon. He’s cute!”, said Finn with wide eyes.

Spike blushed. “Thanks. I hear that you’re not from around here. Is this true?”

“Yeah, it is. I’m a human from the Land of Ooo, where we are never in short supply of magic or food people.” As Finn said this, Princess Celestia nodded to the guards and they all left, except Shining Armor.

“I do not think we should discuss this here. Let us move to one of the unused towers. It should be away from prying eyes and ears.” Princess Celestia beckoned with her wing, and everyone followed. As they trotted, Celestia fixed Shining with a look that spoke volumes.

Magic Man was overjoyed. He had done it! He had sent the annoying human boy and his dumb shapeshifting dog away for good! He started jumping around an empty clearing in the middle of the cotton candy forest. Then he stopped.

“Wait. If Finn and Jake are gone, then that means that...” Magic man turned to the Candy Kingdom wearing the most evil grin imaginable (think green grouchy guy in popular Christmas movie). “... I can have some fun! Oh yeah!” And with that, he began jumping around everywhere. Then, all of a sudden, a voice spoke, ringing throughout the clearing.

“Ah, yes. The infamous Magic Man from Mars. Wow, and I thought I lived in a weird universe,” Magic Man whipped his head around wildly, looking for the source of the voice. Fireballs appeared in both of his hands as he readied himself to fight.

“You know, you really give us chaos spirits a bad name with your badness and the evil and-“ Magic Man began to tune out the voice that was somehow both grating and soothing at the same time. He sent out a tracking spell to find where the voice was coming from. He was shocked to find out that the presence was everywhere and nowhere at the same time. This entity truly was remarkable. He tuned back in to the real world to begin lobbing fireballs and catch the last of what the voice was saying.

“-and then I ate the tea kettle, tabby pattern and all! Oh it’s a good story, but it’s not why I’m here. I’m here because of you misusing your powers for evil! Magic Man, you are a disgrace to the magic community!” the voice said angrily.

Hearing his name snapped him out of his daze, and he managed to find his voice.

“Who-who are you, and where do you come from?” he asked, backing up into a tree.

The voice laughed again. “Oh, Magic Man. You really don’t remember your old pal Discord?” And with a snapping noise that echoed unnaturally around the clearing, he appeared, pouring himself a glass of chocolate milk and then drinking the glass.

Magic Man growled. “Discord! I should have known.”

“Alright, BMO. Tell me what you heard.” Princess Bubblegum was conducting tests on the portal to find out where Finn and Jake went. Any information would help to find them.

“I h-heard Finn and J-Jake at the door, then a weird s-swirling noise, a scream, and another swirling noise, and then it just stopped!” BMO started sobbing with tiny digital tears running down his screen.

PB frowned. This was going to be tougher than she thought. Just then, an explosion rocked all of Ooo. “Hurry back, Finn and Jake. We need you.”

After almost a solid hour of explaining backstories and questioning everything, everyone was up to speed on info, much to the delight of Twilight.

“So, yeah. That’s how my parents found Finn.” Jake was telling the story of how Finn was found. Finn had his hoof so deep in his face that it was about to come out the other side. Rainbow Dash and Pinkie Pie were laughing out loud hard, Twilight, Celestia, Fluttershy, and Rarity were all trying to suppress giggles, and Applejack and Shining Armor were smirking openly.

“Alright, I think that’s enough backstories for today. And no Jake, you are not telling them about Huntress Wizard.”

Jake frowned. “Awwww... But it’s so cute!”

“NO!”

Jake waved a hoof. “Fine. We need to crash somewhere. Preferably a treehouse.”

Fluttershy piped up. “Uh, I live in a tree. You can stay there until you need to go home.”

“Thanks, Flutters! Come, Jake, onwards! YAAAAAAAAAAAAH!”, screamed Finn as he went off to Fluttershy’s tree cottage.

“Uh, Finn? Jake? My house is that way.”

Finn turned around while still on top of Jake. “YAAAAAAAAAAAAH!”

Twilight covered her eyes with her hooves. “Ponyville is doomed.”

Author's Note

Sorry about the late chapter, I haven’t had any ideas, but it’s here now!

EDIT: I added lots of stuff in the middle, so enjoy!