Author's note: Hey there, I'm 12345eater or Emily, but to let you know this will be a fanfic about Marshall Lee and Fionna. There will be some fluff later on, so if you don't want that this isn't the right fanfic for you. Anyways this is my first fanfic I'm posting online so please leave reviews about what I could do better on. I only ask that you're nice about it. So please enjoy the first chapter!

1

Fionna

"Fionna?" she heard Cake call from in the living room. It was quite at the treehouse surprisingly, and she was enjoying it. It seemed every moment of her life she was running to chase after monsters and whatnot. Today was their day off. She was making popcorn currently, one of her favorite snacks. Cake preferred sweet things, like well cake. "Are you done with the snacks? I'm getting mighty bored waiting for you."

"Yeah, yeah I'm coming." she said as she walked into the living room. She plopped down into the recliner with her bowl of popcorn. Cake curled up into her lap, she was a cat after all.

"So I've been thinking you should ask Gumball out. It's been forever since you and Flame Prince broke up. Fionna you need a man in your life. Just look at me and Lord Monochromicorn, we are very happy and you need that kinda happiness in your life." Cake said, with lots of sass in her voice.

"I don't see why I need a boyfriend. It's not going to help me kill monsters is it? Besides Gumball isn't very fun is he? Don't get me wrong, he's a great friend, but I need someone more exciting. Kinda like Mar-" she began.

"Marshall Lee! I knew it! You like him, don't you?" Cake was practically purring. "I can see it now, the Vampire King and his new bride, the adventurist Fionna. Can I be you Maid of Honor?"

"I never said anything like that! I was just using him as an example!" Fionna yelled. "You're taking this the wrong way! Anyways even if I did like him, I would never ask him out. He's royalty, and I've learned my lesson with that."

"Fionna one bad experience doesn't mean you should give up the dating royals. I don't even think you could call Marshall royal, I mean he doesn't have that many subjects does he?" Cake said.

"I actually have more than you would think. They're not as nearly as mean as me though. Picture them as cute puppies and me as a vicious bull dog. And I'm not just any royalty am I? I'm a king and don't you forget it." said a voice behind them. Cake jumped out of her lap and into the air, hissing in surprise. Fionna went to elbow the perpetrator, but he was already in the air, laughing.

"What the glob are you doing here Marshall?!" she yelled. "I never said you could come over!"

Marshall's face changed from its normal cocky look, to a more serious look. He got a tighter grip on his base axe. "Fine I'll get right to the point. I need your help, and I need it now." So much for their peaceful evening.