I'm going to be making some oneshots for alternate universes and what ifs for Gravity Falls, and I'll let you know what the chapters are about in the ANs. This will be marked as completed, but I'm going to add more whenever I feel like it.

Just so you know, these oneshots are just for fun and will sometimes be crossovers, but I'd still like to know what you think! They aren't connected either. I hope you like the first oneshot! ONWARDS AOSHIMA!

Mystery Kids AU: Mabel's Surprise

It had been several days since Dr Loboto had been apprehended, and the Mystery Kids was formed. It had been peaceful, with everyone getting to know each other better, but it might not be for long.

Mabel had been cooped up in the attic, and she had locked the door to stop anyone from entering. She told everyone that she was working on a 'surprise project' for them, and the others couldn't help but be nervous (since the last 'surprise' she had for them was to jump out at the most unexpected moments wearing various disguises and yell, "Boo!"). They left her alone though, and even steered clear of the attic under the pretence that they were 'respecting her space while she worked'.

All of the other Mystery Kids were downstairs. Dipper and Coraline were playing chess, Lili was channel surfing the TV with Norman, and Raz was entertaining Neil and Wybie with tales of his 'awesomely heroic' (*cough*not*cough*) adventures.

Suddenly, they all heard a very loud and excited squeal accompanied with several happy oinks from above them. They all stopped what they were doing and, as one, turned to the staircase with growing apprehension.

Mabel and Waddles appeared at the top of the stairs and started running down them two at a time. Mabel's hands were behind her back, and when she slipped on the fourth last step she refused to use them to break her fall and crashed into the wall. They all winced.

"I'm okay!" Mabel cried, sticking her head into the room and grinning reassuringly at them. She stepped into the room, her hands still hiding something behind her back as Waddles ran over to the TV. "The surprise is finished!" She announced, grinning even wider, proudly.

"Mabel, remember the last time you 'surprised' us?" Dipper deadpanned, and rolled his eyes as he used air quotes around the word. "Coraline thought you were a monster and kicked you into the wall!"

Coraline rubbed her arm abashedly at the reminder and mumbled yet another apology.

"I know bro-bro, but you're all gonna like this surprise! I promise, cross my heart." She tried to cross her heart with her foot, since her hands were still occupied, but lost her balance and almost fell.

Norman eyed her arms, "What is the surprise?"

Mabel took a deep breath, and thrust her arms out so they could all see what she'd been hiding. "Ta-da!" In her hands was a bunch of colourful handmade sweaters. They could see all the colours of the rainbow; from red to dark teal, from black to yellow.

"I made everyone sweaters!" Mabel happily exclaimed, and quicker than a bullet, she pulled her creations onto everyone before they could process what had happened and stood back in front of them.

Dipper was wearing a white sweater with blue trimming, sleeves, and a pine tree on it. Norman had a dark teal sweater with slightly lighter trimming and little green ghosts on it, while Neil was wearing a yellow one with the same pale blue kitten from his lunchbox on it. Coraline's sweater was midnight blue with little white stars on it and Wybie's sweater was black with silver stripes and a white skull on it, closely resembling his jacket - save for the skull. Raz was wearing a green sweater with darker green stripes and an orange lightning bolt on it while Lili had a pink sweater with red trimming and a red and green flame on it. Each of them had the words 'Mystery Kids' sewn onto the collars.

"What do you think? Waddles helped me make them!" Mabel asked excitedly, bouncing on her feet. "I'm wearing my special sweater too!" She pointed at her pink shooting star sweater, which now also featured the Mystery Kids name on the collar. "Do you like them?" A hint of uncertainty leaked into her voice, but her smile was as big and hopeful as ever.

They all examined their new Mabel sweaters, handmade and patterned just for them. It was amazing how fast Mabel had finished them, it had only been a few hours since she locked herself up. They were all unique and special, made just for them. It was truely heartwarming, and they could all feel soft smiles tugging at their lips.

"Mabel, this is..." Wybie trailed off, unable to find the words.

"Yeah, these are..." Neil wasn't able to finish either. Like the infinite horizon, the words had eluded them.

"...Awesome!" Raz yelled, punching the air, since he had no such problems.

"I'm gonna wear mine every day in winter." Lili promised.

They all grinned and thanked Mabel profusely for her gifts, and she glowed with happiness.

"You guys are welcome! I'm glad you like them!" Dipper frowned at Mabel's statement.

"Mabel, we don't like these-" Dipper began, and everyone looked at him in confusion, Mabel especially.

"W-What?" She stammered, her smile sliding from her face.

"-We love them!" Dipper finished, and Mabel's smile returned full-force as everyone's confusion changed to understanding.

"Aw, Dipper!" She pounced on her brother in a hug, knocking them both to the ground. They rolled around, hugging and giggling for a minute, before breathlessly getting up.

"You almost had me there, little bro!" Mabel teased, punching her slightly younger twin's upper arm.

Dipper rubbed the sore spot on his arm, failing to glare at her and instead continuing to grin cheekily at her. "Don't call me that! You're only older by five minutes!"

"I'm still the alpha twin, broseph." She claimed proudly, and he fondly rolled his eyes.

"Whatever you say, Mabel."

That night, before they went to sleep, everyone thanked Mabel again for their sweaters. It was really sweet and they appreciated it, and they made sure Mabel knew it.

When they'd all finally gone to sleep, Mabel turned to Waddles who was lying next to her.

"We did good, Waddles. We did good. Thanks for the help!"

Waddles oinked softly in reply, and Mabel smiled, hugging him. "Goodnight, Waddles. Goodnight, everyone." She closed her eyes and went to sleep, softly snoring, with the wind whistling through her braces.

I hope you Mystery Kids fans like it.

If you don't know about the Mystery Kids AU and if this confused you, then essentially the original Mystery Kids is Dipper and Mabel from Gravity Falls, Norman and Neil from ParaNorman, Coraline and Wybie from Coraline, and Raz and Lili from Psychonauts. They form a group called the Mystery Kids to help protect the world from anything supernatural, and all of them are about 13 except for the twins, who are still in their first summer of adventures. Other people (like Dib and Zim from Invader Zim) are sometimes added, but I like the original group way more.

Mystery Kids noobs and veterans alike, if they haven't seen it yet, should definitely watch Mystery Kids Episode 1 by Kirsten Lien on YouTube. Here's the link:

www youtube com/watch?v=zgAwamjVtzQ

(Add in full stops where the spaces are) Ciao!