༒︎sɹǝɥʇoɹq uoɯǝp༒︎

Explanation

Before the brunette stood two people. A woman with back length brown hair tied in  a low bun and wearing a long purple dress with black heals under. She had a warn motherly smile on as she looked at Dipper.
"You've grown so much!" She said hugging the boy who hugged back.
"I know Mom" he then looked up at the man that had stood beside her. He had a stern look on his face with his hands crossed. He had thick black glasses on and a dark blue shirt with black tailor pants and black shoes on. His looks were exactly the same as Dipper's only his hair was black and swished back with gel. He also gave off dangerous vibes that made Dipper shudder.
"Son," he nodded at Dipper grabbing the two suitcases.
"Father," he replied with the same tone.
"Aren't you gonna invite us in?" The man asked. Dipper just walked in.
"Mabel, Mom and Father are here" a few clanking noises were heard as the girl came running.
"Mom!"
"Mabsy!" The woman yelled back as the two started squealing and jumping around.
"Look at you! So grown up and mature! Ooh is that glitter on your sweater?" Mabel giggled then turned to her father.
"Dad!" She yelled hugging the man who smiled slightly at her.
"Hey kid," he said hugging her. She giggled pulling away. Soon Ford and Stan came into the hall greeting the two. All the while the Pines went on chatting deciding where the new comers would sleep and such in the kitchen. Bill watched from above using an invisibility spell.
"By the way I think Dipper and Mabel have a few things to tell you about" Stan said a hand on Dipper's shoulder. The teen sighed. Mabel motioned to her parents to take seats while the Grunckles left the room. Dipper and Mabel sat across from there parents.
"So do you remember when we first came to Gravity Falls?" The two adults nodded. Dipper went on.
"Well , you see..." He started explaining everything from how they met people saw things they weren't supposed to. They also told them about Bill and Weirdmaggedon and also about how he was defeated then came back in a human form asking for help and forgiveness. Soon Mabel was the one to explain how Dipper fell for the demon and how the demon fell for him too, how they met Tad and ended defeating him. They also started speaking of the other versions which caught there parents off guard. When they stopped to see there reaction they weren't surprised by what came next.
"That's a hell of an imagination," was what their father replied.
"But its true," Mabel said.
"Mabel honey, all these stuff you've spoken off are really fun but really you were chased by gnomes?" Her mother giggled at the story.
"Okay you don't believe us, but maybe you'll believe Bill" suddenly the demon appeared between the twins.
"Mom Dad this is Bill Cipher" Mabel introduced. The demon smiled at them.
"What the how did he?" The two stared in shock.
"Calm down Martha it could just be a simple trick," Bilk twitched.
"Simple trick?" He asked then held out his hand a flame came from it.
"Then what do you call this?" He asked.
"Pyromania" the man shrugged. On the other had Martha could only watch in awe.
"Oh really? Let's try this then" the blonde said merging back into a triangle. He crossed his arms at the man's face.
"You could be a hologram" Bill yelled in frustration.
"What is it that humans can't explain!?" He yelled.
"What about body exchanger?" Dipper offered. Bill grinned as he went strait for the man.
"Hey old man if I prove my point will you believe me?" He asked holding his hand out. The man nodded shaking his hand.
"Deal?" Bill asked.
"Deal" he replied without a second thought. Suddenly Bill was sucked into his body. The older man's body grew limp as he hit his head on the table.
"Daniel!?" His wife yelled in terror. Seconds passed when suddenly he raised his head up. Martha looked at him worriedly and gasped when she saw his eyes. Yellow slits replaced onyx eyes.
"Wow its been a while since I've taken over someone else's body instead of your Pine Tree" he winked at the brunette who rolled his eyes.
"You believe us now?" Mabel asked.
"Okay okay, just get him out if there" there mother replied. Dipper nodded at Bill who just pouted before reappearing between the twins. Daniel Pines panted in shock as he looked at Bill.
"What kind of monster are you?"
"Father!" Bill smirked.
"Why a Mind Demon of course," he chuckled.
"That's enough, you two are coming home!" There Father yelled. He got up about to leave.
"Daniel please wait!" His wife tried to stop him.
"We're not going anywhere," Mabel said. The two parents turned to them.
"What do you mean, get up let's leave now!" The two didn't even budge at his words. The man growled attempting to grab Dipper's arm. Suddenly lightning roared down in the kitchen almost touching the man.
"What the!?" He looked at Dipper. Around the boy was a blueish aura while his eyes glowed a sky blue as he sat looking at his Father.
"We won't leave, and you might not want to anger us" Mabel stated her eyes glowing pink.
"Honey let's hear them out," Martha Pines suggested. The elder man clicked his tongue and sat back down.
"Even if you want us to leave, we'll decide to stay," Dipper stated.
"We know you guys are worried but at least think about it, if you drag us there we won't be happy and it might just make matters worse," Dipper explained.
"This all too ridiculous," Daniel muttered. He glared up at Bill.
"Let me guess so that does mean your dating my son," Bill grinned.
"Yeah!" He cheered. Martha smiled at Bill.
"Guess this isn't all that bad," Daniel turned to her.
"What are you saying!? Not only is our son a fag but he's one because of a monster!" Martha sighed.
"Oh hush Dan, Bill here seems like a nice guy and judging from what our children said he's done a lot and been through more than we can imagine to protect both," the man tched.
"Do your Grunckles even know about all this?" He asked. The two nodded.
"Great just freaking great!" He said. Dipper rolled his eyes not fazed.
"Oh and abut those people from other dimensions that looked like you three are they real," Martha asked.
"About that," Mabel then proceeded to call the other versions down.
In a snap they appeared making the two adults gasp.
"Oh my," Martha started.
"Let us present them these are the us from Levity Stands," Mabel said gesturing towards the blue dressed ones .
"And these are the ones from the Fight Falls" Dipper said towards the twins and Kill.
"Great two other demons" Daniel yelled in frustration.
"Hey watch your tongue old man this isn't our dimension so we could damage those old bones of yours," Kill said.
"Why you-!" Martha hit his shoulder making him shut up.
"Don't mind him, its great to meet people from other dimensions, my names Martha Pines and this is my husband Daniel Pines," the woman smiled.
"Well now that's settled any questions?"
"Oh oh oh oh!" Martha said enthusiastically.
"Mom?" Mabel asked.
"Does that mean Bill will be my son in law?" Dipper turned a deep shade.
"MOM!" He yelled in embarrassment.
"Let's think about it Pinetree" Dipper glared at him.
"I'm out of here," Daniel stated getting up.
"If you leave the shack there'll be something ready to catch you," Dipper G warned. The man halted turning towards his wife and his room. Martha shook her head.
"Don't mind him I think its great you finally got someone to love you for your weirdness," Dipper narrowed his eyes.
"What weirdness," she only giggled getting to leave going to her room.
"Wow what a family," Mabel G chuckled sitting back.
"Now I get where your hyper active personality came from," Will said towards Mabel who giggled. Bill sighed lifting Dipper up before sitting on his seat and placing the boy on his lap.
"I don't think I like your Father Pinetree," he muttered a hand on his lover's waist.
"Now you get why I was so nervous," Dipper sighed.
"That went well," Dipper G shrugged.
"Were you even listening to what there dad said?" Dipper P asked in disbelief.
"He still reacted better then our own parents did," Mabel G shrugged. Will dryly chuckled at that.
"Damn dude, that must be rough," Mabel P stated. Dipper G shrugged.
"Not like they even loved us to start with," Mabel G said casually.
"Oh come on! No parent hated there child," Mabel huffed. Dipper raised a brow at her.
"Uh Mabs?" He asked unsure.
"Shush Dip n Dots, Dad loves you" Dipper rolled his eyes.
"Damn your dimension is so much better," Dipper P said.
"I'm sure yours is fine," Mabel stated.
"No its chaotic, you can't even leave the shack without risking to get killed" Dipper P said.
"Where was that dimension when I asked for chaos?" Bill whined.
"I made sure to get away from you," Bill glared at him.
"By the way, were all talking about our parents but you three since your brothers, don't you have parents too?" Mabel P asked the demons. Kill froze while Bill went silent and Will just looked down at his fingers fidgeting.
"That's true you never told me anything about your family," Dipper said glancing at Bill.
"And I won't speak about them," he said.
"What's with that?" The gleeful boy asked.
"At least tell us who you look the most like," Will shrugged.
"Will looks like our mother and I look like our father, Bill is the weird one" Kill shrugged.
"We also have a sister though-"
"YOU HAVE A SISTER?!" The Mabels yelled.
"How come you never mentioned it?" Dipper G asked.
"Because if you pronounce her name she'll appear," Kill grumbled.
"But she can't appear in this dimension right?" Mabel P asked.
"She can, if Will is a Dream demon, Kill a Nightmare demon and I'm a Mind demon, there's also a Spirit demon" they nodded.
"Who's the Spirit Demon then?" Dipper G asked.
"Zill is- CRAP!" Kill stopped mid sentence as a puff of green was seen.
"Someone called a for a deal?"