Marco Diaz met a magical girl when he was fourteen years old. They became best friends… and soon, he became secretly in love with her. For two years, they hung out together, fought evil and enjoyed each other's company. But before telling her how he really felt, Marco watched Star return to her home dimension. Sure, he tried distracting himself with different girls like Jackie...

What if Wendy and Jackie were actually mermaids. And what if they met and had to defeat an enemy team up. Set in between season 2 of gravity falls and season 1 of star vs FOE

"Sparkle rainbow tsunami!" a girl's voice called. A giant, sparkly, rainbow-colored wave flooded past the twins. "So cool," Mabel whispered. Mabel/Star.

With one show done and the other on it's way, Marco and Mabel decide to relax at the Stop & Slurp store.

If you want to know what happens, click here. If you don't, keep scrolling. Oh spoiler alert that doesn't make sense: I'm pretty sure this is the first MabelxStar fanfic here, and is inspired by a drawing on the internet. If you know what I mean, feel free to let me know.

Star and Marco's dimensional scissors are broken and it causes them to go to Gravity Falls instead. They may need the help from the Pines Twins to get back home.

Being bored with everything, Star makes a bet with Bill Cipher. In order to avoid her Royal Magical Wand being taken by Bill (who secretly plans to take Mewni with force), her and Marco have to kidnap the Pines twins to know where the Author's journals are... (Rated K for the moment. Rating might change as story progresses)

Yes, this is a Star VS the forces of Evil and Gravity Falls crossover fic. It's Mrs. Diaz' birthday, and unbeknowest to Star, she HATES her birthday, when Star throw's her a surprise and unintentionally brings her down, she makes it her mission to find out what she hates about her birthday, her search takes her to Gravity Falls, and brings about an angry mafia.

Star left for Mewni four months ago. Now, Marco makes a deal with someone he shouldn't have and ends up in Gravity Falls. Star having trouble in her dimension, and she may have to do something drastic.

Takes place during the Blood Moon Ball. What happens when the Blood Moon shines on Tom and Marco instead of Star and Marco? Rated M for later chapters. Part two in a three fic series.

Dipper and Mabel return to Gravity Falls as Juniors in high school. Bill gains a human body and tries to woo Dipper. Part one of a three fic series, rated M for later chapters.

Star and Marco were going through dimensions and had got stuck in gravity falls they meet Mabel and Dipper and it takes place in the episode "Carpet Diem".

Technically a Star Wars/Star vs. the Forces of Evil/Gravity Falls crossover. A new threat arrives in Gravity Falls, and it's up to Dipper and Mabel to confront it. One-Shot.

Mabel and Dipper now know who the author of the journals and they also meet two new friends

Star and Marco moved into the Mystery Shack on the Pines twins' 13th birthday, and have had many an adventure together, but things start to get weird when Marco has a dream about Bill. (Established Starco, One-Sided Billdip)