Note to readers: This is my first Gravity Falls and Star vs. The Forces of Evil fanfic crossover. So characters might be out of character for a few moments so bear with me.

Chapter 1

Entering a New Chapter

Gravity Falls dimension

It was a hot August morning in California. But at the same time school was around the corner, so everyone began to return home from their vacation travels. Meanwhile at the Pines family home, Dipper and Mabel are still in their beds, enjoying the last weekend of Summer break.

"Well," Dipper says to himself, looking out the window, "Two more days until high school. Which means more work than middle school." He gets out of bed and kneels down, reaching for a brown box under his bed. He starts to wipe away some of the dust that accumulated on top of it. Dipper slowly pulls off the top and within the box are multiple pictures of Wendy from two years ago.

"Dipper, it's Mabel." Mabel quietly says standing outside of Dipper's, room, still tired from her recent slumber. Dipper quickly places the top onto the box and shoves it under her bed.

"You can come in!" He nervously yells, trying to conceal his secret.

Mabel walks in and greets her brother with a smile. "You have any good dreams last night Dipper?"

Dipper starts to blush, suddenly remembering the dream he had when him and Wendy were together, cuddling together in a bed. "No, not really." He calmly responds, yet still thinking about his dream.

"You sure? I mean you're pretty red right now." She retorts, grinning even more wider than before."

"Mabel, I'm fine." Dipper says slightly raising his voice, but still managing to keep his cool. "Is there anything you wanted to talk about or something? Or were you just trying to get me in a bad mood?"

Mabel chuckles. "Dipper, didn't you hear? Grunkle Stan is coming to visit!" Mabel shouts in an excited tone.

"Wait, which Stan are you talking about?"

"Stan…" Mabel mumbles to herself. "It was either the one that owned a shack or the one that came out of a portal…"

Dipper's mind lit up. If Great-Uncle Ford came to visit, they could talk about a lot of new discoveries he's found and secrets that have been revealed. But after the Weirdmagedon that almost destroyed the world two years ago, nothing weird should be happening for a while.

"Well, it doesn't really matter. If it's either one of them I'll be fine. But besides that, what are the plans for today?"

"Well, since mom and dad are gone today we could always… You know…"

Dipper knew exactly what she meant. It's been a good four weeks since the last time they did it, but for some reason, he wasn't really feeling in the mood.

"Sorry Mabel, not this time."

"Aww, come on Dipper please?" Mabel whines. "I'll let you be on top this time, I promise."

"You sure?"

"I'm absolutely positive."

"Fine, let's just make this quick, because I don't want to get caught."

"Well come on and let's go before it's too late."

The two twins leave Dipper's room and hey walk into their parents room. Dipper walks towards the other side of the bed and pulls out a black box from under it. Mabel walks up to Dipper and takes the box away from him.

"Dipper, if you don't want to do this, we don't have to."

"No way. We made it this far, why stop now." His statement gives Mabel a slight smile. "But if I end up on the bottom, I'm never doing this again."

Mabel opens the box and it reveals a infinitely changing die. The same one Great-Uncle Ford brought back from his thirty year "exploration". They both stared at each other, gazing into each other's eyes. Mabel's hands started to sweat as she held the box in her hand. Dipper, even after talking with Ford, still couldn't manage to make the die's roll's predictable. But for some reason, everytime Mabel rolled it, she got what she wanted. It was frustrating for him and he just wanted it to work in his favor for once. Mabel picks up the die and stares at it for a few seconds before tossing it to the floor.

"Please be something good…" Dipper repeats to himself as he watches it roll.

The die stops and it lands on a pizza-like symbol. Mabel looks at Dipper with a bright smile, while he sighs. He was glad it landed on something other than… well it was kinda weird to rethink during the time. The die glowed as a huge pizza instantly appeared in the middle of the room, nearly covering their toes in melted cheese.

"Mabel, what were you thinking?" Dipper says, concerned for a good reason.

"Well, I was hungry and you didn't want to be on the bottom, so… I made a giant pizza" She replies in a cheery manner.

"That doesn't really make any sense, but okay. But how are we gonna eat all of this?

"Oh, I've got an idea." Mabel picks up the die and rolls it again. It lands on a scissor shaped icon and a giant pair of scissors forms beside the enlarged pizza. She picks up the scissors and starts cutting the pizza.

Dipper sighs and sits on his parents bed. He glared at Mabel, who was still cutting the pizza. Images of Wendy started to appear in his vision, but he didn't really mind. All he wanted was to be with her and nothing could change that. He glances back at Mabel once more and sees her start to bite a bit of crust, which caused him to chicle a bit. Sure, Dipper always wanted to be with Wendy, but not seeing her and being with Mabel all of the time started to change him.

"Dipper," Mabel says whist stuffing a price of pepperoni in her mouth, "This pizza isn't gonna eat itself." Dipper gets off the bed and joins Mabel, still in deep thought.

Monday Morning

"Mabel, hurry up. The bus is about to come!" Dipper shouts, as he opens the front door, ready to go to school.

"Hold on Dipper, just give me a second."Mabel responds. She puts on a pink sweater with a red heart emblem on it and runs downstairs to meet her brother.

"Mabel, it's been a few months since you wore that sweater. What gives?"

"Well, I kinda lost it in my other sweaters. But I found it."

"Well, we should get going." Dipper starts to walk outside, but feels a small tug on his shirt, keeping him from moving forward. "What is it, Mabel?"

"Where are we going again?" Mabel questions.

Dipper sighs and raises an eyebrow, "Do you seriously not know where we're going?" Do you even know why you got dressed?

"No, not really…"

Dipper face palms and sighs. "Mabel, it's the first day of high school."

"Really? The first day is today? Looks like we'll have to get through this together"

A bus pulls up to their house and they get on it. Pieces of paper are seen thrown across the bus and gum, stuck on the windows. Dipper and Mabel sit beside each other at the back of the of the bus.

"Hey, up here!" A familiar voice shouts from the middle of the bus. Dipper looks up and an excited smile grows on his face, while Mabel looks at him with confusion.

"Wendy!" Dipper shouts.

Wendy walks towards the back of the bus and sits in a seat across from them.

"Wendy, what are you doing here?" Mabel asks.

"Well, it turns out that my dad got some bear-wrestling job here, so we moved."

While Wendy is still talking, Dipper's vision gets fixed to her. He slowly stops hearing everything else going on and notices nothing but her. He's been waiting a very long time to see Wendy, but not going to the Mystery Shack for the past two years made him even more anxious to see her again. He finally felt happier. Her adult-like physique was holding him in awe. From her lips to her breasts, Dipper gazed.

"Hey, Dipper, are you okay?" Wendy asks, knocking Dipper out of his trance. "You kinda zoned out for a second there, everything okay?"

"Ye-Yeah… Everythings fine." Dipper quickly responds, getting an odd look from Wendy and Mabel.

The bus pulls up to the school and all the students start to wake up from their naps or whatever else a student could be doing during this time. The bus driver opens the door, letting all of the teens to get off and walk towards the school. The three teens walked off the bus and decided to walk together.

"So," Wendy says, trying to break the silence, "What have you two been doing without me?"

"Well, I've been skyping with Candy and Grenda. And Dipper here has be-"

"Going on trips for science classes!" Dipper shouts, cutting Mabel off.

"Oh look at you Dipper. Trying to be smart and stuff." Wendy teases.

"So, Wendy," Dipper says nervously, "You dating anyone? Or…"

"Really Dipper?" Wendy says in an annoyed tone. "I thought we've been through this already. I gave you closure and everything man…"

Dipper looked down in sadness. He knew Wendy was right about everything she said, but no matter how hard he tried, she was something he couldn't move away from. That's the main reason why he still has the pictures of Wendy under his bed. "You're right Wendy, I'm sorry."

""Look Dipper," Wendy continues, "I know you like me and all, but sometimes, even though you really want to be with someone and know deep down that you can never be with them, it's best just to move on." Wendy starts to walk away, leaving Dipper and Mabel behind.

"Dang it, Dipper," He thinks to himself, "It's been two years since you've seen her, now you screwed up everything.

Mabel puts her hand on Dipper's shoulder. "You okay, bro? You seem really stressed out."

"I'm fine, Mabel. I just gotta think things through for a few minutes."

The two twins walk together, entering the school. Dipper starts to question himself more and more about his relationship with Wendy. He knows it can never work out, but at the same time, keeping high hopes for the best. Mabel also starts to question things. She never noticed that Dipper still liked Wendy. And if he does, how did he conceal it so easily. Usually, he would physically start pouring out his emotions and the way he felt about certain people with verbal cues and all that other stuff. Guess he learned how to hide it better.

"Come on bro bro, let's head to class." Mabel says.

"Alright Mabel, I'm right behind you."

Well this ends chapter one. I hope some of you enjoyed it. Some of this may seem weird due to no prompting or maybe I'm just being too critical of myself. See ya next time.