A/N: Okay... So this is a new one. It's a one-shot so, no other chappies. It's kind of monster falls, kind of not... Anyway, please review. Disclaimer: I know, ewe know, we know, ewe know, that I don't own Gravity Falls.
Grunkle Stan was rudely woken from his nap in the old battered armchair in front of the television. Stan groaned and pushed himself out of the hole he'd made for himself. He could tell by the girlish screams it was Mabel. He stomped into the front of the shack hoping to find something reasonable for her to be screaming about.
It wasn't Mabel.
It was Dipper.
Dipper was behind the counter wailing and pulling on his hat, the only part of his nephew in sight.
"Dipper, you'd better have a very good explanation for this."
The boy stopped immediately. "D- don't come any c- closer!"
"What's wrong, kid?" His voice softened almost imperceptibly. Something sounded odd with his nephew.
"I- I don't know!" Grunkle Stan sighed before shouting, "MABEL!"
The girl skipped down the steps and into the room with a cheerful brace-filled smile, "What's up, Grunkle Stan?"
"Something's wrong with your brother- figure it out." He gestured to the counter that Dipper was hiding behind.
He heard snatches of the conversation as he left the room.
"Go away!"
"Dipper, don't be a grumpy pants!"
"Don't come over here!"
"Or what?" She asked teasingly.
"Hey! Give me my hat back!"
"What's so-" and then Mabel cut off her words with a earth-shattering shriek.
"Mabel, shut up!"
"GRUNKLE STAN!"
He sighed and grouched before heading back into the store. It was now his turn to scream. His nephew stood before him, except it wasn't his nephew.
Dipper was wearing his signature orange shirt and his pine tree cap was clutched in his hands, but what was really shocking was the body of a deer where Dipper's legs should have been. They were a lovely faun color with speckles of white, his ears were also that of a deer's and they drooped considerably low.
Grunkle Stan finally managed to speak after his own wordless yell, "What did you do?!"
"What did I do?! This isn't my fault!" The Dipperdeer shouted, his ears flicking up of their own accord.
Mabel slowly blinked and Grunkle Stan knew they were in trouble when her pupils grew huge.
"You're adorable, bro-bro!"
"What?!" Dipper and Grunkle Stan asked at the same time. His nephew looked at him with panic and he only shrugged. Dipper collapsed into in a jumble of legs with a huff.
Mabel squealed, "Awwwww!"
Her twin scowled at her and crossed his arms.
Actually, now he thought about it, he could use this. Yeah... He could see it now,
"Come One, come all, and Behold! The Mutant Deer Boy! No ones knows how he came to be that way, or if there are more, but we do know that he needs money to survive! Please donate ten dollars to the cause!" He could make millions!
The tinkling of the door startled him out of his fantasy and alerted them to the arrival of their late employee. Wendy Corduroy froze at the sight of Dipper the deer and the other Pines' stricken faces.
"I'll just come back tomorrow..."