This is a fanfiction about the Mushroom War.

This is what I believe happened after the end of the episode "Bad Little Boy." Rated T for minor language and sexual content.

Flame Princess has just broken up with Finn, and Jake tells Finn how to tell others about their breakup without damaging Finn's ego: lying to create sympathy. That is until the white lie spirals out of control and becomes an insane story. Now throw in an angry exgirlfriend. Ouch, it looks like Finn is in trouble. ONESHOT. No pairings except one strange one. Based on Trian song

What in the blazes happen to Fionna to make her to do such a evil act? Why would she do this? Why!

Marshall Lee's sure in for an interesting time with his bunny eared friend. *Fiolee One-shot.

FIOLEE! Marshall Lee has prepared a song for Fionna, explaining to her how he loves her. Disclaimer: I do not own Adventure Time. The song sang by Marshall Lee is originally mine. FionnaxMarshall Lee pairing.

Fionna wakes up and finds Cake cooking some breakfeast.Cake gives her something and says that she will need it in the future while she isn't there.When Cake leaves,Fionna decides to go to the Candy Kingdom.But when Fionna starts to worry about Cake,she runs into many problems on the way finding her.Read this FanFiction to find out what happens!

Is it better to rule in the Nightosphere or serve in the Candy Kingdom?

Fiona is on a mission. She wants to tell Marshall Lee she loves him, but her first attempt proves disappointing. What will his reaction be?

Ok so I decided to make this story since I like reading stories of Adventure Time going to high school and I think this one will be way better than my first one. Enjoy .

Fionna asks Flame Prince to show her what the glob tier 15 is [lemon]

As life goes by, Finn & Jake must voyage through time to stop the destructor of life, the Infyrier, and save planet earth from its deadly wrath. Rated T (well, really more for 10 ) for suicidal tendencies and mild coarse of language.

Marceline's brother Gabe comes to Ooh to get back to the nightosphere to take vengeance on Hunsed Abadear his father for banishing him from the nightosphere to the prison dimension for being to powerful and not wanting to give up his position to his least favorite child.

After their breakup, Marceline winds up drunken at Bonnie's door. Uninhibited due to her drunkenness, she tells her what is going through her mind.

Not knowing what to do, Fionna accepts advice from Lumpy Space Prince. Maybe she didn't do it right, maybe Marshall Lee is just thick headed or maybe confusion was just bound to happen.

Aradia hates what he did to her but after over 300 hundred years will she possibly be able to forgive him? Does he even care about her anymore? Does she want him back in her life? Is there really anything left for her here? Does he even remember her? So many questions but maybe the biggest one of all, why does she love the number seven? Marshall Lee/OC

Marshall Lee finally begins to realize the feelings he has for Fionna the adventuress, and turns out she feels the same way about him too. But they're two different people, he's an evil vampire king, and she's an innocent hero. How will Marshall be able to control his natural instincts around a girl he's so in love with?

Marceline took a peek over Bubblegum's shoulder. "Whoa!" She flew around and seized the bag from her, gliding to the table and upending the satchel. A pile of what appeared to be miniaturized versions of the residents of Ooo lay in a heap on the table.

Marceline discovers that Bonnibel is rather possessive.

Se cuentan las aventuras y desventuras amorosas de una chica normal, común y corriente, que cualquiera de nosotrAs deseariamos ser.

Well, I mainly made this for Tevvy! He's is absoult-o-ly addicting to this show, and loves some yaoi himself so I though 'why not' :) I dont own anything! And Tevvy, I hope you come n visit me soon(or pick me up to hang out or I'll beat you down!), n joo like the book!

So this is my new story! Marshall and Fionna are fighting monsters, when Marshall is hit and becomes unconscious! When he wakes up, Fionna makes a lie saying that they are a couple. How will Marshall react? How will Fionna keep up the lie? Read to find out! Rated T for language, some romance stuff, and violence. Nothing TOO extreme! Advice is always welcome. Hope you enjoy!

Aria, prince of the Dark Angles has had it with his parents trying to change who he is, so fed up he runs away to begin a new life.

A one-shot that ties into "Onward, Into Another World!" In Ooo, New York, crime runs rampant. But, there is one shining light in the city of evil: Detective Finn Mertens. And when the police are unable to discover the culprit of a mysterious murder, Finn is the one to solve it!

Finn, now 18, discoverers he has superhuman abilities! But when Marceline is in danger, and a mysterious knight with similar powers and a connection to his past shows up, Finn is determined to protect her, no matter what! (Finnceline!)