Adventuretimeau Stories

Marshall Lee x Reader high school AU~ It all started when the delinquent new kid Marshall Lee got assigned as my partner for a sex-ed project. And then he wouldn't leave...

After Simon Petrikov is successful in his ritual to reunite with his beloved Betty, he is sent to a universe where Betty grew up around a different crowd and didn't go t...

You wake up feeling like ( a bitch ) you just took a nap on ice. You hear an old man yelling at something then hear silence. You open your eyes-

My first ever Adventure Time Frogman Fubblegum AU story. Just a simple lighthearted little SCUBAdventure and Rescue Frogman out-of-air simulation training dive set in th...

Gumball xMarshall Lee An AU where Prince Gumball is now Mr. Gumball and Marshall Lee the Vampire King, Fionna the Adventurer, and all the candy people are students at An...

It's been a while, hi. This is just another Adventure Time fic but it's a oneshot this time. It's about Finn and his younger brother Calvin. They both live on Founder's...

Post finale au where there's a plague, it's the apocalypse, LSP is dead, Simon is suicidal, and BMO mostly speaks in meme references. The only thing that can help them n...