Summer with the Pine Twins: Summer's Coming to an End

Dipper and Mabel vs. the Future: Part 1

(y/n)'s p.o.v.

It was early in the morning when I woke up to Dipper screaming. Jolting up I glance at his bed to see his sister standing over him with googly eyes glued to her chin and she tells him in a goofy voice "Mornin' Dipper guess who?" An easy-going smile graces his lips as he rolls his eyes in amusement. "Oh, what joy if it isn't Mr. Upsidedownington. How long has it been? Third grade maybe?" I smile at Mabel's antics as she responds with the voice. "That's right and I'm here to deliver you an Upsidedownington fantastic message!" 

"Is it the message that we're getting too old for this sorta thing?" Dipper asks and Mabel nods, hopping off his bed and pointing at the calendar. "Um kinda actually. It's that we are exactly one week away from our thirteenth birthday!" She excitedly squeals, causing Dipper to jolt up as well. "Woah! Our birthday is coming up already? Soon we're gonna be actual teenagers!" "Finally I can stop reading pre-teen magazines and start reading post-pre-teen magazines!" "PG-13 movies here I come!" The two say getting excited before Mabel points out "And just think, only one more year until high school. High school Dipper! Where girls become women and they teach us stuff about you know what~" Mabel wiggles her eyebrows, confusing me before Dipper answers her.

"Trigonometry?" "Oh yeah baby!" That's when Grunkle Stan and Soos barge in, joining in on the excitement. "That's not the only good news coming up!  In one week my senior citizen ponytail kit is coming in the mail. I'm...I'm kinda going through some things." "In one week, my Grandma is finally letting me eat crackers on my bed. The future is coming for us all dudes." They all leave the room talking about the future and I look at the calendar and sigh before glancing at the photo of all of us together. In one week the twins would leave and go back to California. In one week the Mystery Shack would shut down for good and in one week my Aunt Shelli would be coming to pick me up and live with her at the farthest part of the country from them, I would be forced to say goodbye to the Pines family for who knows how long and I wasn't ready for it.

Dipper's p.o.v.

Mabel, Soos, (y/n), and I were in the living room, planning our birthday party for next week, Mabel soon grabbing our attention. "Alright party planners! In one week we become teenagers and our Summer vacation winds to an end so we need to throw the greatest party of all time! I'm talkin' piñatas with tinier piñatas inside!" Soos quickly gets on it before Mabel glances over my shoulder at the guest list. "I'm talkin' inviting everyone in town. Let's see where do we stand with the gnomes?"

"Not so fast Goofus and Girl-Goofus. After that zombie incident no one's throwing another party at my house I keep finding bits and pieces of the undead in the couch cushions," Grunkle Stan says barging into the room and proving his point by lifting a cushion on the recliner to show a decaying hand.

"But Grunkle Stan, we need some roof to raise!" Mabel exclaims when Soos speaks up. "Dude you could rent out the Gravity Falls High School Gym and have your party there. That place is empty all Summer long!" "That's a great idea, Soos, too the high school!" Mabel shouts when suddenly we hear an explosion and the house shakes and Ford's voice rings out. "Dipper! (y/n)! My face is on fire!" (y/n) and I exchange looks before I tell my sister "We'll just be a sec," We take off into the bathroom to find Grace patting Ford's face down with a cloth as I asked, "Great Uncle Ford are you ok?!" "Yes, he's fine, he just said that to get you two in here quickly," Grace tells us and (y/n) points at his face stating "But your face is on fire." "Yes, it's much faster than shaving. Now listen kids we have a very important mission and we need you two to help us. Remember the rift of interdimensional space-time I showed you? It's cracking."

Ford explains, showing us the cracked seal that contained the rift and Grace continues for him. "This is what Bill has been waiting for. If it breaks it'll cause reality as we know it to completely unravel! A hypothetical catastrophic event we call Weirdmageddon," Grace gestures to a blackboard covered in depictions of Weirdmageddon, unease building up as Ford told us:

"Bill is out there and he'd use any trick from deception to outright possession to make this happen. But for the sake of humanity, we mustn't let it." "What do we do?" I ask worriedly as Ford puts the contained rift in a special briefcase. "We patch the rift, I'll explain on the way." "But what about Mabel?" (y/n) starts to ask when She pops in the room and hands us a backpack. "It's ok you two, you should totally go with Grunkle Ford and Grace to save the world or whatever." "You sure?" I ask, unsure if she was being truthful or not. "We'll be doing birthday junk all week, plus I packed us walkie-talkies! Here's one for my party mission and one for your smarty mission."

The three of us laugh at the small joke before Ford clears his throat. "I did mention the fate of the universe is at stake, didn't I? Hurry! We haven't much time!" "Calm down honey they're just having some fun, it's what kids do," Grace says leading Ford out before telling us "But please do hurry this along." "Ok, Dipper it's your first big mission with Ford and Grace. A chance to prove yourself, don't mess this up," I mutter to myself before slamming into the wall and crying out in pain before laughing out "I'm alright," Giggling a bit (y/n) helps me leave the room without injuring myself more, along with a kiss where the bruise was on my forehead.

Mabel's p.o.v.

Soos drives me over to the high school and we enter the gym to see it filled with teenagers in a bunch of lines leading up to a table. "Woah Soos, I thought you said this place was empty," That's Wendy's face pokes out near the front of the line and waves us over. "Yo, my dawgs! What is up?" "Wendy! What are you doing here?" I ask and she rolls her eyes with a scoff. "Ugh, high school registration," I start to get excited and tell her "Oh! I'm only a year away from high school myself. Would you say your experience is more rom-com or wacky romp?"

"More like teen horror movie. High school is the worst. Classes get super hard. Your body just flat out turns against you and worst of all everybody hates you," She complains, soon gesturing to all the many classes listed on the walls and the teens glaring, growling, and hissing at each other. "Why aren't they singing about following their dreams? TV taught me that high school is like some sort of musical-" "TV lied man! If you could avoid growing up do it. I'd give anything to be twelve again," She says, shaking me before asking "Anyway what are you guys doing here?" "Oh just looking for a place to have my thirteenth birthday party..." I trail off before hearing an adult call out for Wendy. "Wendy Boidaroid? I mean Coyderoy?" "See what I mean?"