Okay, um, I have no idea why I wrote this. Enjoy this one-shot that I made when I was half-asleep...

This happens a few days before Weirdmageddon, and no, I do not own Gravity Falls.

Mabel didn't know exactly how she had gotten it, but Mabel held a packet of Smile-Dip in her hands. She didn't know what to do with it though. Mabel didn't want to eat it and have hallucinations, but she didn't know what else to do with it.

Should I just throw it away? she thought. No, that's wasteful.

She sighed, before inspiration struck her. She had been sitting on the couch in the living-room, and she grinned as Dipper walked into the room. He was about to walk past her, but Mabel pushed off the couch and tackled him to the ground. He let out a yelp of surprise as he was forced onto his back. Mabel pinned him down by his shoulders.

"Mabel! What the heck!" he squeaked, trying to shove her off of him. Mabel held him down, not about to let her plan fail. She managed to tear open the packet of Smile-Dip while still holding her twin down. Dipper's eyes widened as he realized what she was doing.

"Mabel, no-!" he protested, but it was to late. Mabel had already poured the powder down her twin's throat. She released her hold on him and let him stand up. He coughed up some of the powder, releasing a short moan.

"What the heck was that for?" he questioned. Mabel grinned widely.

"Everyone reacts to Smile-Dip differently!" she chirped. "I wanted to see how it'd affect you! Think of it as science!"

Dipper scowled at her. "Really, Mabel?" he sighed. "Was that really necessary?"

Mabel nodded, but frowned as she realized the Smile-Dip didn't seem to do anything. "Aw, you might be immune to Smile-Dip," she joked. "And here I thought you might go off the rails!"

Dipper crossed his arms. "Did you really have to do that, though?" he grumbled. "I don't think..." Suddenly, he trailed off, his eyes widening as he stared off into space. Mabel grinned. It was working! The Smile-Dip was working.

She wondered what would happen next, as she watched her twin frozen in place. For a long moment, he just stood there, mumbling something to himself. Mabel tilted her head as she watched him. Suddenly, he broke into a huge grin. He hopped up into the air a couple of times like a kangaroo, before drawing in a deep breath.

"Hey there!" he chirped, his smile somehow growing wider. Mabel furrowed her brow in confusion.

"Uh, hey?" she responded. Dipper then grabbed both of her shoulders as he looked her in the eye.

"Do you know what time it is?" he asked her, shivering slightly from excitement. Mabel tried not to feel uncomfortable. After all, it was her idea to give him the Smile-Dip. So, she decided she might as well play along.

"No, I don't know what time it is," she replied, watching to see what his reaction would be. He frowned, his eyes widening slightly, before releasing a sigh, as if disappointed. He stepped back and crossed his arms.

"That's no good," he tsked, shaking his head. "Everyone else knows!" he added, gesturing towards an empty space besides him. "See? They know!"

Mabel giggled to herself. "Okay, can you tell me what time it is?" she asked, barely stifling her laughter. Dipper broke into another grin, shaking his head slightly.

"That's against the rules."

"What rules?" Mabel questioned, to which Dipper snickered.

"You know, the rules!" he said simply, rocking back and forth on his feet.

"Heh, okay Dipper-" she started, before being cut off by Dipper, who shrieked in terror, jumping five feet into the air. He backed himself into a wall, beginning to hyperventilate.

"Y-you can't say that!" he squeaked, his eyes wider than she though to be humanly possible. Mabel lifted a brow in confusion.

"Say what?" she asked, utterly bemused. Dipper pointed at her accusingly.

"That name! It's a death-wish to summon the demon! If you say it, he'll come to steal all our cherry juice!"

"Who will?" Mabel asked again, amused at the sight in front of her. Dipper's eyes flashed with fear.

"D-Dipper will!" he squealed, before gasping as he slapped a hand over his mouth. "OH NO. I SAID IT."

He was breathing heavily now, and Mabel didn't know whether to feel worried or entertained. "Hey, it's okay," she attempted to calm him down, holding her hands out. "He can't steal our cherry juice," she reassured. Dipper narrowed his eyes suspiciously.

"You're a liar!" he snapped, "He told me not to trust you!"

Mabel snorted in amusement. "So, the person who will supposedly steal our 'cherry juice' also told you not to trust me, and you believe him?"

Dipper nodded his head vigorously. "Yes! He may be a demon, but he doesn't lie! UNLIKE YOU!"

Mabel released a puff of breath. "Look, I'm not lying. Our, uh, our 'cherry juice' is safe."

Dipper shook his head. "No, not yet! If we want to protect our cherry juice, there's only one way to do it!" he declared. Mabel tilted her head to one side.

"Okay, what is that?" she questioned. In a second, Dipper had another wide grin on his face.

"I need your help for it!" he chirped, completely forgetting his fear from before. "C'mon, follow me!"

Without waiting for a response, he rushed out of the room. Mabel, deciding she shouldn't leave her delusional brother alone, decided to follow. She found him rifling through the drawers in the kitchen, humming thoughtfully. "Hey, what are you doing?" she inquired. Dipper glanced over at her, before shutting a drawer he was searching through. He let out a disappointed sigh.

"I can't find it," he whined.

"Find what?"

"The cherry juice!"

"W-why are you looking for cherry juice in the drawers?"

Dipper rolled his eyes. "You're too simple-minded to understand," he scoffed, before turning to an empty space besides him. "Can you believe how stupid she is?" he asked the empty space. Mabel didn't know is she should be offended or amused now. Dipper continued staring at the space for a moment, before he gasped with realization.

"Of course! You're right!" he chirped, before he opened one drawer in particular. He reached in and pulled out a large silver knife. Mabel's eyes widened and her jaw dropped. "If we can't find the cherry juice, we'll have to make our own!"

Then he turned to Mabel with that same grin, only now it looked more unsettling. "Do you wanna go first?"

Once Mabel realized what she meant, her heart skipped a beat. "Uh, n-no," she stammered. Dipper sighed.

"Alright, fine," he frowned, before grinning again. "I'll go first then!" He turned the knife so that it was pointing at him. Mabel tensed in fear, before launching herself forwards. She tackled her brother to the ground, wrestling the weapon from his hands. He gaped at her in surprise, before snapping out of his shock and attempting to push her off of him. She threw the knife to the side to pin his arms to his sides. He writhed on the ground, trying in vain to escape her grip.

"Hey! Let me go!" he growled, struggling to escape her. Mabel shook her head.

"No. You need to calm. Down."

Dipper narrowed his eyes at her, before turning his head to stare behind her, his mouth opening in shock. "N-no! More demons!" Mabel turned her head and released a relieved sigh. Ford and Stan stood in the doorway, watching the scene with wide eyes and utterly confused expressions.

"Uh, a little help, please?" she asked, her eyes flickering to Dipper, whose struggles grew greater with each passing second.

"W-what is going on?" Stan stammered. "Help with what?"

"Help trying to secure my delusional brother." When Stan and Ford exchanged confused expressions, she added, "Look, I'll explain in a moment, but can you please just help me?"

At that moment, Dipper freed both of his arms. With a growl, he shoved her backwards, earning a yelp from Mabel, who was sent sprawling on the floor. Dipper wasted no time in jumping to his feet, before leaping up onto the table, his eyes widened with fear and anger both.

"You're all crazy!" he cried out. "Get away from me, you soul-stealing demons! You're working for Dipper, aren't you!?" Then he slapped himself in the face. "DANG IT! I said his name again!"

Stan leaned towards Mabel, who had gotten off of the ground. "What's he yellin' about?" he muttered. Mabel sighed.

"Long story," she grumbled. "Look, we just need restrain him."

"But, Mabel," Ford began, his gaze not wavering from Dipper, who continued watching them with fearful eyes. "What... why is he, uh, acting like this?"

"That's kind of my fault," Mabel admitted. Dipper, meanwhile, was scanning the trio of supposed demons in front of him. What were they waiting for?

Deciding not to wait and find out, he whipped around and leapt off the table, making a mad-dash out the door. Mabel groaned. "Come on, we need to go get him," she sighed. Her great-uncles nodded, and she was relieved they had stopped asking questions for now. The three, Mabel hoping beyond hope that Dipper would snap out of this already, followed her delusional twin as he entered the gift-shop. He glanced around wildly, ignoring the bemused glances that tourists cast in his direction.

Wendy, who had been "working" at the cash-register, glanced up from her magazine as Dipper bolted into the gift-shop, Ford, Stan, and Mabel not far behind. Normally, this wouldn't have been too strange, but Dipper looked like he was panicking, his eyes wide with terror, Ford and Stan looked utterly confused, and Mabel looked annoyed and irritated. Wendy lifted a brow as Dipper turned around, letting out a yelp of surprise and fear as he saw Mabel and his great-uncles.

Wendy set down her magazine as she watched, half bemused and half amused, as the scene unfolded before her eyes. Dipper began running around the gift-shop, waving his arms in the air, screaming something about "demons coming to steal our cherry juice". The few tourists in the gift-shop left quickly, clearly confused as to what the heck Dipper was saying, just as Wendy was.

Somehow, they got Dipper backed up into a corner. His twin and great-uncles surrounded him, much to his obvious dismay. Wendy had not the slightest clue as to why Dipper was acting so... weird... and didn't know why the heck the three were trying to get him under control.

Mabel started slowly towards her terrified twin, holding her hands out in front of her as if trying to calm him down. "Bro, you just gotta take deep breaths, this is starting to get really annoying. It was fun at first, but now you're acting insane."

Dipper narrowed his eyes at the three, growling slightly. Wait, growling? Wendy thought. She'd never heard anyone actually growl before. He pressed himself against the wall, his narrowed eyes darting from Mabel to his great-uncles like a cornered, wild animal.

He turned to an empty space besides him, staring angrily. "A lot of help you are!" he spat to the empty space, Wendy trying not to break out into laughter. Mabel must've finally noticed that Wendy was there, because she released a puff of breath, walking over to her while her great-uncles made sure Dipper couldn't even try escaping.

"Hey, Mabel, what's even going on?" she asked Mabel once she came over. Mabel groaned, looking worn-out.

"Okay, you know that convenience-store we went to earlier this summer?" When Wendy nodded, she continued. "Well, I may or may not have saved a little Smile-Dip from there, and I may or may not have forced Dipper to have some, and it may or may have made him go totally delusional. Now he thinks his name is the name of some soul-stealing demon, he thinks me and our Grunkles are also demons, he keeps talking to empty spaces, and he has a weird obsession with cherry juice... But it's not... cherry juice... It's, ya know, that stuff that looks like what cherry juice might look like, if you know what I mean," she finished, and Wendy did indeed know what she meant.

"Is there anyway I can help with... this?" Wendy asked, gesturing towards the two great-uncles who were still trying to get Dipper to calm down, though probably failing by the looks of it.

Mabel opened her mouth to respond, but Dipper cut her off. "LOOK, BEHIND YOU! THERE'S AN AIRPLANE! IT WANTS YOUR CHERRY JUICE!" he yelled, most likely trying to distract the two elders. Somehow, it worked. The two turned around, despite common-sense, and Dipper bolted for the door to the outside. Knowing full-well that there was a lot more risk of him doing something stupid in the outside-well, Mabel flung herself after him.

"Oh, no you don't!" she cried as Dipper reached for the door handle. His eyes widened as Mabel barreled into him. The two collapsed onto the ground with a thud. Mabel tried to pin him down as she had done many more times before that same day, but with little success. The twins grappled on the ground, each of them trying to gain the upper-hand. Unfortunately, fueled by misplaced fear, Dipper managed to win their struggling, holding her down with his hands pressed down onto her throat. Mabel wheezed as her breathing came out slightly strained. After a moment, all the fear drained from Dipper's expression, shifting back to the wide grin he had worn earlier that day.

And given what the circumstances were right now, that grin just became a million times more unnerving. Then he broke off into laughter, falling onto his back and releasing Mabel, who scrambled to her feet. Dipper lay sprawled on the floor, still laughing like nothing had happened. After a long moment, he just... passed out.

Mabel approached him hesitantly. She let out the breath she didn't know she'd been holding. "I think the Smile-Dip finally wore off," she concluded. And indeed it did.

A Few Days Later

Dipper flipped through the pages of his book, honestly feeling bored. He thought he might be about to nod off, but then...

He jumped up into the air with a yelp of shock as Mabel jumped out of nowhere. "Hey, Dipper! Do you want some cherry juice?" she teased, referencing the... incident... from a few days ago. Dipper's cheeks grew red with embarrassment.

"Shut up," he mumbled. "You're the one who basically drugged me."

Mabel snickered. "Yeah, but even I didn't act nearly that insane when I had Smile-Dip."

"I'm never gonna hear the end of this, am I?" Dipper huffed, to which Mabel shook her head.

"No, no you will not."