Okay so this is my very first fanfic. (yays!). I came up with this story because to me, Mabel and Steven would make a very cute couple and I wanted to make a story about that. However this story has alot more than that. I hope you enjoy it and please, please, please review! I really want to hear your opinions/questions/criticisms on it.

Dipper followed Mabel deep into the forest behind their great uncle's mystery shack. The sun was just about to rise and it's golden rays shone through the branches into Dipper's eyes. He groaned, rubbing his sleep deprived eyes as he tried not to stumble on any tree roots.

"Mabel, where are you taking me?" He said slightly annoyed. His morning bird sister smiled her classic braces-filled grin as she grabbed his hand and pulled him to move faster.

"C'mon Dipper, you promised me that one day I could be in charge of solving a mystery! And I found one!"

"It couldn't wait until 7:00?" Whatever Mabel was excited for, it was something huge. Mabel had woken Dipper up at 4:00 in the morning to go on their adventure. He had no clue as to where they were going, but Dipper yawned and kept trudging behind his sister. Mabel was skipping through the bushes, unaware of the leaves and twigs stuck on her recently knitted creation- a blue sweater with a chocolate donut on the front and sleeves that gave the illusion they were dipped in fudge. She carried on her shoulders a pink and purple backpack with green lightning bolts and a button that read "meow's it going?" She had almost woken her brother in the middle of the night when she packed their bags supplies for the journey. Dipper wasn't sure what those supplies were exactly for, but for whatever reason, it includes a bag of jellybeans, knitting needles, a pan, her grappling hook, three tubes of glitter, and a rock. Mabel stopped all of a sudden and turned to her brother.

"We're here," she hissed with suspense. She pushed a few bushes out of the way to reveal a platform made of crystal. The platform gleamed in the sunlight and sparkled like a diamond ring.

"Woah," Dipper said, impressed at his sister's finding. He immediately pulled out his journal and searched for the magical entity on one of its pages, but there was nothing written about it.

"Strange", he thought aloud, "the journal doesn't mention anything about it."

"Hey Dipper," Mabel called from the platform, "maybe this thing is a stage built by an intergalactic alien boy band that travels through space to perform decade defying music!"

"Yes, Mabel. This is a stage for a boy band from outer space" he said sarcastically. But before Dipper could read another sentence from his journal, Mabel started singing off-key.

"A love out of this world," she sang, loud enough for the birds to fly away scared.

"Shhhh! Mabel!" Dipper hissed, afraid Grunkle Stan might catch them sneaking off this early. But she wouldn't listen.

"Won't you be a part of my galaxy?" Dipper got up to stop Mabel's singing when he slipped and fell. Mabel burst into laughter as Dipper spun around to see the zipper of his backpack was stuck on the tree's bark. Dipper was getting irritated at Mabel's childish behavior, so he ripped his bag from the tree and marched onto the platform.

"Mabel, if you want to lead the mission, take it seriously then."

"I am taking it seriously. I'm not the one who fell on his butt while a certain adorable sister tries to solve this mystery."

"Oh yeah, because your singing will get us closer to the answer."

"It will, watch. LA LA LA LA LA LA!"

"Mabel! I-" Dipper paused. So did Mabel. A bean of light flashed from the crystal platform, surrounding them in an ultraviolet glow. They found themselves levetating, feeling the weightlessness as they float.

"What's going on?" Mabel panicked.

"I don't know!" Dipper shouted. They screamed as they were transported through the light.

•••

Steven slouched on the couch waiting for the crystal gems to return from their mission. He had went swimming, attempted to teach Lion some tricks, and finished playing the latest game of the Golf War saga during their absence. He sat there staring at the ceiling for the past 15 minutes, dying from boredom, when the warp pad started to glow.

Oh boy, the gems are back, he thought as he ran to the crystal pad to greet them. The light faded and revealed not the crystal gems, but a human boy and girl his age.

Steven approached the pair cautiously. A look of curiosity and surprise appeared on his face. The humans looked back at Steven with a slight nervous disposition. After a brief moment of silence, Steven considered the thought that they were gems like him and welcomed the strangers into the temple.

"Hello, my name's Steven," he told them, "what's your name?"

The boy looked at him with suspicion, but his sister was quick to introduce themselves. "I'm Mabel, and this is my brother, Dipper." Dipper awkwardly waved his hand at the chubby boy. Steven smiled. He was happy that he found new gem friends.

"So what kind of gems are you guys?" Steven asked as he searched a very uncomfortable Dipper for his gem.

"Gems?" Mabel asked confused. Steven lifted his shirt to show the twins the rose quartz in his belly button.

"Wow!" Mabel said amazed, inches away from steven's gem, "you got a gem growing out of your body!" Her eyes glistened from the light reflected from the rose quartz. Dipper, however, was dumbfounded by it. He frantically flipped through the journal for something, anything on jewel people, but there was nothing. Dipper figured that he would just have to watch Steven and write down his findings. Steven pulled down his shirt and noticed the knitted pastery on Mabel's sweater.

"Do you like donuts?" He asked Mabel.

"I love donuts!" She gasped.

"We have the best donut shop here in Beach City. You wanna check it out?"

"That sounds awes-" Mabel was interrupted by Dipper overhearing the conversation.

"Wait-Beach City?" Dipper didn't recognize the name from any map. "How far are we from Gravity Falls?"

"Gravity Falls? I've never heard of that place before. Is that where you guys are from?"

Before Dipper could answer, the crystal pad was glowing once more.

"The gems are back!" Steven announced with joy. More of these creatures? Dipper thought. But Dipper didn't know that these gems were much bigger and more powerful compared to Steven.

That was chapter one of five. What will happen to the twins next? (dun dun dunnn!) Again, if you can, please review this story.