Hey Guys, basically this story is a combo of Ooo and Aaa. It's going to get really interesting. So, enjoy! ^.^

Princess Bubblegum stood in front of the largest crowd she had ever seen. Every single resident of Ooo from every kingdom in existence was there, and not a single one of them would shut up. "Ladies and Gen-…" Princess Bubblegum tried to say but was instantly cut off by the realization that no one was listening.

She got closer to the large megaphone and tried once again to get the attention of the crowd, "Um, people of Ooo! Plea-…" Once again, she was ignored.

Becoming frustrated, she angrily yelled into the megaphone, "YO! People! PEOPLE! LISTEN UPPP!" Everyone's heads instantly snapped up to stare up at the balcony where Princess Bubblegum stood in all her sugary pink glory.

She smoothed out her dress and began to explain. "People of Ooo, I understand some of you are uncomfortable with the people standing around you," a soft murmur of agreement arose from the crowd, "but, I wouldn't call you all here unless it's for serious reasons… And these are indeed, serious reasons. A couple of days ago, I was visited by a candy person by the name of Prince Gumball. He came through a portal he opened from a different dimension. He informed me that in his dimension there are people there who are exactly like each one of us, except they are the opposite gender; they are called our 'others', and he is mine. He also told me that his dimension – Aaa – is going to completely explode for unknown reasons in a week from now. So, the plan is that the people of Aaa will come to Ooo through the portal and live with their 'others'. And keep in mind here that they are practically your other halves, or twins, so they should be treated as such."

Princess Bubblegum paused for a moment to take in the crowd's reaction to this news. No one moved. No one talked. And many wore a face of pure focus on their faces as they stared up at the pink princess.

After a moment passed, Princess Bubblegum took a deep breath and continued, "They will arrive in a week. Take this week to prepare for your new roommate, and remember: they are practically you. So, they will probably be okay with what you're okay with. Be here on Sunday to pick them up and take them to their new castle, Er, I mean home. Meeting adjourned. Come on everyone! We all have a lot of work to do!" And with that, the crowd began to disperse among Ooo.

6 DAYS LATER/SATURDAY EVENING

Finn & Jake:

Finn was just putting the finishing touches on his "other's" room when Jake walked in covered in pink paint.

"Finn! Hey bro! You almost done? Mine's just missing uni—"Jake abruptly stopped talking and eyeballed the room Finn was working on, taking in every detail. "Dude, what is this? It looks exactly like your room!"

Finn gave Jake a blank look. "Well, yeah. PB said that the others are 'practically you'. And this is me." Finn said with a shrug.

"But, they're still girls! Girls like pink, pretty stuff. Not all these guy things. Swords? Really? She'll hate it!" Jake exclaimed matter-a-factly.

Finn gasped and dropped the hammer he was about to hang on the wall. "I never thought of that! But, it's too late to re-do it! They'll be here by tomorrow! Jake, what if they hate adventuring? Why is this so scary?" Finn began hyper ventilating.

"Woah, chill dude. It's all going to be okay. PB said so." Jake walked over to Finn and calmed him down by patting his back repeatedly until his breathing returned to normal. "I guess all we can do is keep working and hope for the best…" Jake said with a sigh.

THE NEXT DAY…

Marshall Lee (In Aaa)

Marshall Lee was standing outside the candy castle waiting to be transported to Ooo with only a small satchel slung over shoulder and his axebass slung over the other. It was a cloudy morning, so he didn't need an umbrella just yet. He looked at all the terrified faces around him and sighed. Wusses he thought. Eventually he spotted Cake. She was the size of an oversized horse and she had numerous bags tied around her torso. Must be all of Fionna's useless junk he thought with a smirk slowly gliding across his lips at the thought of Fionna.

Then, there she was. Her bunny ears popped up among the mess of luggage on Cake's back, and her face soon submerged also. She was directing the traffic and trying to make the frenzied chaos less frenzied and less chaotic. It was so her. In all her heroic-ness, the tuft of golden hair she purposely left out of her hat got in her eyes. Marshall Lee smiled with the appearance of a good opportunity and flew up.

He snuck up behind the heroine and once he was above her, he grabbed the tuft of hair and gently pulled it upward just so she could see. She swung around and looked up and smiled at the sight of Marshall's mischievous face.

"Marshall! Nice man-purse! Help me down?" she smiled. Marshall grabbed onto the 14-year-old's strong hands, and flew up a couple of feet, then carefully descended to the ground.

Throughout the course of the rest of the morning, Marshall stayed by the heroine's side, helping her with her heroic duties. They joked, and laughed their way through the line. They debated whether Marshall's satchel was a man-purse or not. They pranked numerous people. At some point, Cake found Lord Monochromichorm and left Marshall and Fionna alone, which surprised Marshall.

Eventually they reached the portal. They were the last ones. Prince Gumhead, Er, Gumball was standing next to the portal making sure everyone got through safely. Marshall Lee could instantly see Fionna's face contort into sickening adoration at the sight of the prince. "Oh brother," Marshall said under his breath.

When the Prince spotted them, he yelled out, "Fionna! Vampire citizen! I'm so glad to see you!"

"You are?" Fionna blushed.

"Yes! I must go to Ooo to make sure the people remain in order for the time being. I need you to stay here until the last minute to make sure that everyone made it through," Prince Gumball said, completely oblivious to Fionna's disappointment.

"Uh, er, oka-…" Fionna started to say, but Prince Gumball had already jumped through the portal.

"He's not worth it Fionna," Marshall said slowly. He didn't make eye contact with her, but he could feel her confused blue eyes staring at his head. After a moment she moved her gaze to the ground and they stayed like that for the next hour until Marshall Lee finally spoke.

"It's 11:59. The world's going to blow up in less than 30 seconds. Let's go." As he turned to walk through the portal, he heard a familiar yell at the end of the hall.

It was Peppermint Maid. She was screaming and running as fast as her short candy legs would take her. "WAIT! Wait for me!" She screamed.

Marshall then heard a second pair of feet break into a run. Dammit, Fiona. Let me take care of this.

The ground began to shake and Marshall took off towards the pair. A boom erupted from outside the castle walls. He reached them in ten seconds. He picked up Peppermint maid and tossed her across the room towards the portal. She cracked on impact, but still got up at leaped through the portal.

Marshall then swiftly grabbed Fionna and pulled her close to his body and put his hand behind her head for support. And she clung to him as he raced across the room.

We're not going to make it he thought as the room became enveloped in a blinding white. He took a large leap as a high-pitched sound surrounded them. His shoulder was wet. Fionna was crying. He took one last desperate leap. And they were in Ooo.

Dear my very few readers, I'm sorry this is so short T.T

But, I didn't want to spend a poop-load of time on something that has no future…. I have BIG plans for this story. I want this to be an on-going thing, a series. So, does this story have a future? Do you guys want me to keep writing? R&R?

And I'm going have quite a few fiolee moments in this… I gets more romantic when she ages, just wait. Be prepared for cuteness. ;)

OMFG. Random tidbit right here. But I'm in the car as I'm typing this, and I look up to check the time on the car radio and it was showing the artist of the song being played and it stopped at "Marshall_Math" just as I looked up. O.O It was really creepy… But it gave me an idea…. So, the first person who can tell me what the artist's stage name is will get to name the OC I MIGHT throw in the story later on…. That's it! Thanks for reading! R&R [lessthanthree]