A/N

Hey Guys or Gals

I have written another fan fiction! It's about Adventure Time again because I absolutely love it.

I randomly came up with this one

But anyway on with the Fanfic!

Sharkpedofromverpets has helped me with this chapter too.

Disclaimer: I don't own adventure time! Pendleton Ward does

My OC's:

Cassie: Is 14 and has medium long brown hair with blonde highlights in it with blueish greenish eyes, she is like every other teenager is a little bit clumsy and immature. When you first meet Cassie she is shy and may seem un-approachable but when you get to know her she is out going and is not afraid to speak the truth. Her nickname is Snow.

Chelsea: Is Cassie's Best friend aged 14 and has shortish brown hair and is kind of exactly like Cassie except for a few minor differences. Her nickname which Cassie sometimes calls her is turtle lady. Chelsea loves playing games and hanging with Cassie especially if the "tricksters" are there as Chelsea and Cassie trick them back.

Scarlet: Blonde wavy hair down to her waist and his Chelsea's and Cassie's best friend also is like Cassie and is a fan girl same as Cassie and same age as Cassie, Grace, Montana and Chelsea. Usually hangs with them at school and doesn't like Grace and Montana as they used to be best friends with them but then had a huge fight when they were 10.

Grace: Is a friend of Cassie's and it is age 14 too but is mostly known with Montana as the "tricksters" because they always play tricks on her and sometimes Chelsea. Grace has Strawberry blonde hair that goes down to her waist. Like Cassie Grace is first off shy but when you get to know her she is a bit outgoing but still sometimes shy and goes to the same school as Cassie, Chelsea, Scarlet and Montana. Grace and Montana rarely talk to Scarlet after their fight when they were 10.

Montana: Is 14 years old too and best friends with Grace and friends with Cassie and Chelsea. She has dark brown hair which goes half way down her back and is the shortest out of all of them. With Grace she is known as the "tricksters" cause of their love of playing tricks on Cassie, Chelsea and sometimes Scarlet.

Please enjoy One Very Special Reason and please review

:D

Chapter 1:

In one world then wait where am I!

Cassie's POV

After waking up on a normal Sunday morning I decided to text Chelsea and see if she wanted to go to the shops to meet up because I knew the "tricksters" were going to be there and it was a boring Sunday after all and I had no home work either which is unusual.

After waiting for what it seemed forever but in reality it was only 5 minutes or less, Chelsea texted back sure I'm going to go to EB games too.

After getting dressed into a black tank top with a star on it and some jeans I walked to the shops to meet Chelsea.

At shops

After meeting up with Chelsea, we decided to go to EB games to buy some new games and found Scarlet in EB games.

After buying some new games Scarlet said "Hey Snow" a bit concerned and worried.

"Yeah what's wrong you kind of seem scared or worried about something" I said concerned of what Scarlet was worrying about.

"This probably sounds kind of stupid but I had a dream or kind of vision actually, that you randomly disappeared and ended up in a place that you were put there for one very special reason to stop major things from happening" Scarlet said not sure if it sounded silly but relieved to get that off her chest.

"Don't worry that sounds awesome like in Inuyasha, Kagome gets thrown into the feudal era of Japan" I said excitedly.

"Snow this serious listen" Scarlet and Chelsea said at the same time.

"Ok geez I know this is serious but seriously guys why someone would pick me to prevent major things from happening" I said

Why would someone pick me of all people to prevent major things from happening?

I mean I'm clumsy, immature and shy but then crazy and immature I mean see me at school.

"Oh no here comes the "tricksters" Chelsea said knocking me out of my daydream.

"Oh yeah, let's go somewhere else cause I am definitely not in the mood to hang out with them" I said kind of angrily because they are definitely really annoying sometimes.

"I just want a "trickster" free day for once in my life" I screamed in my head.

"Yep let's go" Scarlet said sick of Grace and Montana already although we haven't even talked to them.

As we ran away from Grace and Montana I of course tripped over but the last thing I saw was not the black and white tiled floor it was a blue swirling portal type thingy.

As I woke up my head was pounding like it was going to explode and I blacked out again but I didn't realize I was in a complete different world or time.

Finn's POV

When I was playing BMO I realized the sun was setting so I decided to go outside to sit and watch the sunset.

Unfortunately Jake had moved out already to move in with Lady Rainicorn as he now has his kids.

When I walked outside still locked in my thoughts I saw a beautiful girl with brown hair on the ground unconscious.

Although she was beautiful I thought she wasn't real because she looked human, but that's stupid because I'm the only human left in the whole of OOO.

The girl opened her beautiful bluey and greeny eyes and took in her new surroundings until her eyes landed on me.

Cassie's POV

As I woke up still feeling groggy I looked around at my new surroundings and I saw a boy around my age with a blue shirt and blue shorts with a bear hat on his head ( I have to say he looks kind of cute wait I didn't just say that!) staring at me so of course I screamed and I scream really loud I must say.

"Whoa calm down you're okay Im not going to hurt you" the mysterious yet cute boy said.

"I know this is not real so of course Grace and Montana must be up to their old tricks I fricking hate them sometimes! So come on come out Grace and Montana "I said really ticked cause Grace and Montana decided to be stupid again and trick me.

Why is it always me who they trick!?

I mean they haven't seen the dark side of me only a few people have.

At that time I stood up looking really ticked and no one messes with me when I'm angry because the last time someone did that at school I went crazy and nearly punched them although Scarlet and Chelsea heard me back before I snapped completely. Which when I snap completely in not so good.

"Whoa who's Grace and Montana I've never heard of them" the mysterious cute boy said looking at me concerned if I was going crazy.

"I'm not going crazy so don't worry but aren't I in 2013?" I said pretty sure I was still in 2013 but just in a other place or something thinking that Grace and Montana went really far to trick me.

"Nope you are in the land of OOO and I am OOO's hero and number 1 adventurer" the boy said.

"Okay? What's your name then hero?" I said already liking my new nickname for him.\

(A/N I know Cassie used Marcy's nickname)

"I'm Finn and who are you" Finn asked.

"I'm Cassie sorry about earlier it's just that the "tricksters" Grace and Montana always trick me and it really annoys me" I said embarrassed of how I yelled to Finn and I didn't even know his name then.

"Hey it's ok I'm used to it I get angry when one of my best friends Marceline the vampire queen tricks me" Finn told me relating how it's annoying when somebody annoys you.

"Oh that's bad" I said.

When I was talking to Finn I noticed that when he mentioned his friend Marceline I felt jealousy and I have only felt jealousy when my crush at school always hung out with girls

Third POV

Finn wouldn't admit it but whenever he looked at Cassie he thought she looked perfect. He felt this way about Flame Princess but they thought it would be better to be friends even though it hurt his heart he got over it. His heart broke when he got over Princess Bubblegum because she was his first real crush.

A/N how was that chapter? It may not be my best writing as I wrote this a couple of months ago and my writing has gotten a lot better since then.

Hope you guys enjoyed it :D

PLEASE REVIEW!

Or you wouldn't like to meet us mwhahahahaha because together we are unstoppable

Cassie get outta here and you too Finn

Sorry they decided to bring everyone from OOO into my bedroom!

Anyway Please Review!

It makes me feel happy and I know that you enjoy the story

But enough of me ranting!

Hope you enjoyed it! (Sorry for the long authors note too)