Gravity Falls: Two Twin Tribulation (with Ryukkira)
 

"Welcome one! Welcome all! You're about to enter a world of peril and danger and loads and loads of totally-legit, I-swear-to-GOD-this-is-real inanimate object action... High octaine stuff that your flash photography can not handle so please turn the flash off unless we're outside because people might see it from the road and come this way if they do. THIS... is the... Mystery... Shack... Zone..."

Stan tried to make his speech end with something that could replace the word "Mystery" for "Twilight" but he wasn't quick witted enough and the thought came to him only after he had re-read the speech as it were on the napkin he snatched from the table.

"Alright whatever. This way please." He waved them all in, grumbling about how he went through hoops to entertain these people and all they ever did was whine about how something was too expensive or about how the no refunds policy infringed on the rights of blah blah blah.

Dipper didn't really care all that much about today's usual spiel. He had outright refused to help Grunkle Stan with his store today due to being particularly engrossed in one of his newly acquired books. Books on the "Acquisition of Interesting Phenomena and Institutional Irony" as it were.

He sat back on the couch and looked over to see if his sister Mabel was around. He knew she could probably provide some hefty insight on some of this stuff despite her disinterest in avid reading. Usually the fun they had together dealt with Pillow-Fights and more action oriented stuff.

"Aww!!"Mable laughs as she begins to act like she is vomiting while squirting Dipper with silly string. She was a bit of a odd ball compared to her twin, 90 percent of the time if they got into a strange situation it was because of her.

"Ack! Mabel! Come on now. Listen to me on this. This subject might end up being relevant for us!" Dipper shouted across the room, a bit irritated.

"Stop being such a party pooper Dipper."Mable replies

Dipper pouted and sat up right on his seat. He hated when things got like this. Here he came with relevant information that might clue them into the majesty of this place and there she was not listening.

"I'm not being a party pooper. I just want us to be prepared. I mean, come on, aren't you at least a little interested? When a situational parallel happens to us that we're not prepared for, what are you gonna do then huh?"

"Blah!!!"Mable replies as she sprays more silly string

"GAH!" Dipper got a face full of the stuff and wiped it off of him. He growled for a minute before grinning. Alright then. She wanted to play hard ball huh?

He loved playing around with his sister but when she got dismissive of the serious stuff, often he'd have to stoop to her level playing field to get a reaction out of her.

"Alright then. If that's how you wanna play it. Then I WON'T tell you. Not a single thing. Infact, I'm gonna keep it nice and shut tight. OH and I know just the thing to use to keep it closed too." Dipper said, suddenly reaching over and removing the belt around Mabel's skirt! He then wrapped it around the book tightly, snicking as her skirt fell to the floor.

"Aw!!"Mable screams as she quickly pulls her skirt back up before pulling Dipper's pants down

"WAAH!" Dipper didn't expect her to react so quickly! He quickly bent down and pulled them up before blushing a bit and groaning. Then he got an idea. "Hey Mabel something's crawling on your back!" He shouted all of a sudden.

"Get it off get it off!"Mable screams letting go of her skirt as she tries to get whatever was on her back off