Dipper

"There is no way I'm helping Mabel infiltrate my girlfriend's great-uncle's brain!" I exclaimed.
"W-well, Mabel wants to talk to you." Will's tie extended into a screen, and Mabel appeared on it.
"Dear brother, do you really trust Pacifica?" She asked.
"Yes!" I hissed. "Cancel the deal so we can get out."
"I'm afraid not." Mabel shrugged. "A deal is a deal. I don't break my promises."
"What do you want?"
"Just your cooperation."
"Or, I can tie up Will until Mr. Southeast wakes up and we can get out of his mind."
"Then I'll kill Pacifica." Mabel tossed a knife up and down. "She's lying unconscious on the ground, a perfect target. Too easy, in fact. Maybe I could wake her up and torture her until she dies?"
"Don't you dare!" My voice trembled.
"I seem to have hit your weak spot, huh?" Mabel stopped tossing the knife and pointed it at me as she spoke. "Listen up, you help Will find the memory of Stan Southeast inputting the code to his safe and I'll let her live. If you can't find the code, guess who you can say sweet dreams to?"
"You're my sister!"
"And you're my brother. It's our job to antagonize each other once in a while. Please, Dipper, if you won't do this for me, I strongly urge you to for Pacifica if you don't want to find her head hanging over our mantel."
"Fine." I said. "I'll help."
"Thank you, brother, you've made the right choice." The screen collapsed back into Will's bow tie.
"If you see any of the others, don't tell them of this. They can't know. Just try to avoid being captured, okay?"
"Y-yes, master." Will said.
"Let's split, then." I started off in the other direction to start looking in doors.
Please forgive me, Pacifica, I thought, but this is for you.

Eventually, I was able to find the code. I called over Will, who took note of it, and we closed the door back up.
"Now pretend like I've captured you. Go back home when we wake up, and tell Mabel."
"Yes, master." Will said.
"I found him!" I called out. Soon, Pacifica, Wendy, and Gideon came around the corner.
"Yay!" Pacifica hugged me. "Finally we can get back to watching Free! in Czech!"
Yay?
"Will, take us out." I ordered.
"Y-yes, master." He nodded, and a blinding white light grew around us.

We woke up in the living room. Luckily, Mr. Southeast was still asleep. Will was bobbing in the doorway.
"Will, go home." I said. He nodded, and floated away.
"I'll go set up ITunes again!" Pacifica ran out of the room to outside. Wendy got up.
"I'll see you guys later." She waved, taking a can of spray paint from behind the sofa.
That just left me and Gideon.
"Look, Gideon, I'm sorry that you hate me, but please don't hate me just because of my sister. I was a little on edge the night I threatened you." I held out my hand. "I promise that I have no bad intentions with Pacifica and if you want me to break up with her I understand."
"No, I understand. I guess I'm a little overprotective of my cousin." Gideon shook my hand. "I can't blame you for your sisters mistakes. After helping us with Mabel shrinking me and Pacifica and getting a demon out of our Grunkle Stan's mind, I think you're okay."
"Thanks." I nodded.
I was lying. But if it meant I got to stay with Pacifica, that's okay.
"Ready to watch anime in actual English this time?" Pacifica called from outside.
"Sure!" I called back. "Bye, Gideon."
"Bye, Dipper."

Pacifica

Dipper came outside and sat on the top of the picnic bench with me.
I was about to push play on the episode when I paused.
"Dipper, why did you send Will inside my mind?"
He looked down.
"Dipper, you promised to tell me."
"I-I just wanted to know what you saw when you looked at the Gremloblin."
"That isn't an excuse. Why did you?"
"Because I love you, and I wanted to know what you were afraid of so I could keep you safe."
"That's no excuse to go inside my mind."
"Then is this?"
Dipper leaned in and kissed me on the lips, then pulled away.
"Dipper, I-"
"Whatever happens, I love you, okay?" He said.
I looked down at the grass and closed the laptop.
"I know you're lying. Come back when you can tell me really why you sent Will into my head."
I stood up.
"Goodnight."
Dipper grabbed the sleeve of my jacket.
"Please, Pacifica. I am telling the truth."
I yanked away my jacket. "No. Goodnight."
I walked to the Mystery Shack, and before I went in, I turned around.
"I didn't remember at first, but now I do. I saw you agree to help Will and Mabel."
"What?"
"I couldn't hear it well, but as I was passing by a hall you were in, I heard you say you would help Mabel."
I turned around and slammed the door behind me.

Later that night, I woke up to hear a loud crash.
Me and Gideon hurried down the stairs, along with Grunkle Stan, to see Mabel standing in the office. The window had been broken, and the safe was opened. In her hands was the deed to the Mystery Shack.
"Huh? What?" Gideon looked surprised. "But we stopped Will!"
"So Dipper did help you!" I cried.
"You're smarter than you look." Mabel crossed her arms. "Yes, he did. And now this is our property, so get out."
Her amulet glowed, and we started to float up into the air, down the halls, and then we were thrown out the door into the grass.
"Goodbye." Mabel giggled, and she slammed the front door shut.
We all stood up and stared at the Mystery Shack for a second. How could this be happening?
"Pacifica!"
I turned to see Dipper running towards me, and he grabbed my hand.
"I'm sorry! I'll try to convince her to-"
"Shut up!" I cried, yanking my hand away. "I can't believe you! You helped her!"
"Pacifica, I-"
"Don't even speak to me!" I screamed. "You don't even love me! You sent a demon inside my mind, and you took my house? Some boyfriend! It's over!"
I stormed off, down the driveway. Gideon and Grunkle Stan glared at him before they turned and followed me.