Author's note: Hey guys this is an idea that just popped in my head tell me what you think :)

Fionna was siting on her bed in her room playing with BMO when a cat with coffee spotted fur came in with letters in her hand. "Hey Girly you got a letter from PG!" Cake said excitedly. Fionna looked up from her game and hopefully said," Is it an," she jumped off the bed and pulled out her sword and stood heroically," ADVENTURE!"

Cake shook her head at the girl," No, Honey buns it's an invitation to a ball." Fionna dropped her crystal sword in disappointment," I'm not going it's just going to be like every other ball he's had." she sat back on the bed and returned to her game.

"Fi, it doesn't seem so much like a ball more of a small party, and he's not hosting it. He's been invited to the land of Ooo and he chose you as his plus one." Fionna blushed a little because of that. She had liked Gumball for a long time, but it never got passed a crush felling. The blond paused the game one more time and looked at the cat. "Ok, do you know who's all invited? Marshall or FP?" she said not wanting to only know two people at the party.

Cake looked at the letter and shook her head," No, from what I can tell the hostess is...umm...Princess Bubblegum." Fionna thought a moment," Wait will you go too?" Cake handed Fionna the other letter from Lord Monochromicorn. Fionna nodded and Cake didn't give her time to verbally answer. She grabbed the adventuress's arm and whisked her to the bathroom. "Come on girly the party's tonight!"

Marshall was floating above his bed, playing with his axe guitar, when a paper airplane comes threw his window and hits him in the head.

Hey cuz it's Marcy any way I need a favor from you.
My guitarist quit on me and we have a gig tonight in Ooo.
Can you do me this solid? And we have to be there by 7
to get things set up.
P.S. It's formal.

The vampire looked at the time and cursed the clock read 6:30 there was no way he could do this and look sexier then he normally looked. He flew threw his house and scrambled together what he could find. Luckily he found a black blazer, a red tie, white shirt, and not so badly torn pants.

He ran his fingers threw his black hair, grabbed his guitar and flew out the door. He looked at his watch it said 6:55 and he said to himself," Shit, how am I going to get to Ooo in five minutes."

Cake and Fionna were putting on the finishing touches on their outfits. Fionna was wearing a dark blue dress with white ruffles and a light blue trim around the skirt and sleeves of the dress. The sleeves had a slight puff in the shoulders than extended to her elbow, she also wore a light blue bow around her neck and a pair of silver earrings. She still had on her Mary Janes and her bunny hat, which she refused to take off.

Cake was taking a simpler approach she was wearing a light pink bow around her neck and a ring that Lord Mo gave her for their anniversary last year and now she has an excuse to wear it.

"Hey Cake, I'm gonna bring my sword kay." Fionna said causally. Cake turned to look at her sister," No you're not! That thing will clash with your dress, you can hide a dagger if that makes you feel better but not that sword!" Fionna just muttered to herself, but agreed to her terms.

"Oh, and one more thing," the cat stretched her arm and grabbed the hat off her head and quickly used the other arm to block as the other hid the hat," No bunny hat!" Cake finished with a smirk as the blond hair fell to her knees.

"No fair Cake, you used magical cat powers." Fionna whined with a pouty face. Cake just stuck her tongue and pulled the human girl on her back and stretched. "Come on, we're going to be late." the cat said as they left their home.