Prompt: Sometimes when he's surprised or distracted Dipper's wings will pop out suddenly. Like one time Mabel had him cornered on the couch, tickling him into submission they went from frantically buzzing little buttwings to full-sized. *thwoomp* Dipper is now wedged in the cushions and Mabel is jammed against the coffee table. (Bonus, it happens every time someone that isn't family kisses him. Every. Time. Peck on the cheek? Thwoomp. Hand-kiss? Thwoomp. He wears them big at all formal occasions.)

You know how cats poof out their tails?

Kiiiiiiinda like that.

post/105650678268/sometimes-when-hes-surprised-or-distracted

A series of vignettes about Dipper and his wings.

Stan Pines glanced around the corner into the living room.

Yep, there was his great-nephew, floating cross-legged a few feet off the ground as he watched the television, listlessly flipping through channels and not paying attention to much of anything, solid for the next few hours thanks to a deal with Mabel.

Perfect.

Mask firmly in place, Stan leapt into the living room with a yell.

Dipper shrieked, flailing and falling over backwards, wings going twice as big as usual in an audible thwoomp as he tumbled halfway through the wall.

Stan cackled, laughing harder as Dipper cried, "Grunkle Stan, stop laughing! I'm stuuuuck!" plaintively, legs kicking as he tried to pull himself free.

The fact that Dipper's wings puffed out like a cat's tail was forgotten in favor of teasing him about getting stuck halfway through the wall (and then using that to con some cash out of tourists – never let it be said Stan couldn't milk everything he could out of an opportunity).

(Though he did help Dipper out of the wall. Eventually. After Mabel took a good dozen pictures or so or of a grumpy demon limply hanging through a wall, arms dangling, pouty and disgruntled.)

Henry thought he was getting used to the particular brand of crazy he'd be marrying into when he'd moved into the former Mystery Shack turned Supernatural Library.

That being said, he knew he was wrong when he walked into the kitchen and found Dipper clinging upside down to the ceiling like a cat in the cartoons, wings almost as big as he was, hissing at a Stan who was laughing so hard he was close to falling over.

He heard Mabel come up behind him and moved a little to the side so she could see, and she giggled. "Looks like Grunkle Stan got him again," she snorted quietly, and only then did Henry notice the mask Grunkle Stan must have dropped.

Henry started eying Dipper's wings again (he'd privately thought they were kinda cute, when they were small, but so far he'd only seen them big like that when Dipper was...yeah...so why...?).

"Uh...Mabel...?"

She giggled again, leaning against his side as she watched her brother and grunkle. "Dippy-cat," she said with satisfaction. " Gets all poofy. Just like a kitty."

This cult was not going down easy.

Dipper wasn't sure just what he'd expected – if they were sacrificing supernatural creatures instead of people, of course they were loaded for just about anything to come at them, but sheesh.

He may not have needed to breathe, but he was still panting as he and Mabel finished off the last of the cultists, both of them covered in blood (and how he hated to see his sister covered in that, wished he could keep her safe and away from all of this, bad enough he had to endure it but she wouldn't stay behind, not when her brother was going into danger or she could take down some cultists).

Still, the twins shared a victorious grin before they set out to free whatever sacrifices still lived as the last cultist fell.

Most of the would-have-been sacrifices nodded gravely or nervously in thanks before shooting off, running as fast away from the place as they could. All save the last.

Whatever they were, they were human shaped, and grinned widely when they saw Mabel – and the grin didn't fade when they saw Dipper.

"Well, isn't it my lucky day," they said, in a voice tinted with a faint, Midwestern American accent. "Getting rescued by two such...charming creatures," they continued, with a broad smile. "The name's Harkness. And what do I call you?"

Mabel giggled as he kissed her hand. "I'm Mizar, and that's Alcor."

If anything, Harkness looked more intrigued. "Well. Not everyday you meet a pair of stars."

His eyes traveled over both Mabel and Dipper equally, and Dipper tilted his head to the side as he studied Harkness in turn. "Are you...flirting with us? Both of us? Seriously? Because I feel like you're trying to flirt with us."

Harkness smiled brighter, and Dipper didn't move fast enough before Harkness was pressing a kiss to the back of his hand as passionate as the one he'd given Mabel. "I dunno. Do you want me to be?"

Mabel crowed with laughter as Dipper's wings flared out in shock with an audible whoomph, frozen and staring in shock until he started babbling, blushing cherry red. "Okay, yeah, so, uh, we need to get going now, hope you can find your own way home, Mizar come on!"

Mabel giggled again as Dipper dragged her away, his face still aflame, and blew a kiss back at Harkness. "Bye, Harkness!" she called back, and he watched them go with a flirty little wave as Mabel started to tease her brother, the pair blipping out of sight seconds later.

(And no, Mabel didn't let it go. Not for a very, very long time.)

Dipper was hissing, softly, wings mantling behind him, huge and void dark, arms close to his sides with his claws bared and razor sharp and eyes ablaze.

Mabel would have tried to calm him, but right now, she was feeling the same. She leveled a glare at the man on the other side of the library counter, casually as possible reaching underneath the counter for the weapons stored there.

"What was that, again?" she asked coldly, daring the man to repeat himself even as he stared at the demon who (to his eyes) had suddenly appeared behind the woman he'd thought would be easy to intimidate, with her colorful sweater and big, sequined flower in her hair.

"I...that is..."

"You are going to get out of Gravity Falls," Mabel said softly, almost unheard over her brother's hiss, the one that went straight to the animal part of the brain and flicked the 'terror' switch, "and if you ever try any of the things you mentioned, well..."

She nodded toward Dipper, behind her, and the man nodded his head so hard it looked like it would fall off. Backing away, he never took his eyes off Dipper until he was out the door and running.

Mabel braced herself on the counter once she was sure he was gone, and Dipper's still huge wings came down to wrap around her, hiding her from the world, and he wrapped his arms around her from behind, burying his face in her hair and nuzzling.

The smile it brought to her face was a little sad, but fond nevertheless. Her brother really did act like a cat, sometimes.

Mabel glanced into the kitchen again, giggling, and Henry watched with raised eyebrows from his seat on the couch.

He finally felt safe enough to just sit and read, and he didn't really feel like getting up just yet, but he also wanted to know just what Dipper was doing in the kitchen (where he was doing the dishes in exchange for some of Henry's catch from yesterday's fishing trip – and Henry was very definitely not going to watch when Dipper ate them) that had Mabel giggling like that.

Finally relenting, he stood up and looked over his wife's head into the kitchen.

There was a CD playing, and Dipper was swaying along to the poppy, bright music – and his wings were twitching in time, a different tempo than his hips, flicking and stretching and dancing along.

"...do you think he knows he's doing that?" Henry asked quietly. Mabel shook her head, pulling her camera out of nowhere and starting to shoot video.

"He forgets he's doing it until it gets pointed out," she whispered. "Then he gets all stiff about it and tries not to move them." With that thought, they watched silently, getting video of Dipper's little dance until the song ended.

Mabel returned to the living room, still smiling, but Henry hesitated. He glanced back at the demon in the kitchen, still bopping along to the music, wings dancing, and smiled fondly before he rejoined Mabel.

The first year Pacifica Northwest was allowed to host the annual Northwest Ball was also the last time until her parents were simply too old and had no other choice, save stopping the balls or having a distant cousin, not of the direct line, host it outside of Gravity Falls.

She blamed it in part on the fact that she, at least, honored her family's promise to invite all of Gravity Falls to the party.

And when she said all, she meant ALL of Gravity Falls. The Northwest Manor was packed to the roof with all manner of creatures, human and not, and somewhere she knew her parents were losing their minds, something she would deal with later. For now, she was enjoying herself too much as she ducked and wove through the crowd to find the Pines.

She hadn't expected her crush on Dipper Pines to come back full force when she finally managed to find him and his sister in the crowd. (She had resorted to looking for Mabel's husband, or the 'Extremely Tall Red-headed Tree' as she mentally dubbed him. Considering Mabel called him her 'Gigantic Moose Man' she felt she was safe calling him that – mentally, at least.)

She'd expected the formal suit out of Dipper and something bright and glittery from Mabel. Well, she was right on both those counts, though Mabel's pulled together into something that managed to be amazingly bright, covered in glitter and sequins, and beautiful, resembling fireworks on a starry night to Pacifica's eye while still being amazingly loud and purely Mabel.

Henry looked awkward in his suit, and once Pacifica would have made a snide comment about the fit of it, too short in the arms and legs and obviously off the rack, but she was better now, working to be better everyday, so she smiled instead, hurrying towards them with a wave and a hug for Mabel, stepping back to look at Dipper only to stop and stare when he finally moved.

What she had assumed was a shadow behind Dipper twitched, and she realized belatedly that she was staring and Northwests did not stare but...Dipper's wings were usually tiny things, but at this moment, they were huge, and draped in a delicate tracery of gold chains that sparkled when they caught the light, and they were amazingly gorgeous and inhuman, a smack in the face to the pro-naturals her parents had invited while still being so very formal and elegant.

Dipper caught her stare and bristled a touch defensively.

"Well, look who decided to get all dressed up for once," Pacifica teased before he could speak, recovering in the way she'd been taught over and over again, in the teasing the twins had taught her that was gentle and left everyone happy. "Don't I feel special."

The defensiveness melted away at the normal teasing and he stuck out his tongue at her, forked this time, another subtle slap in the face to the pro-nats in attendence, his wings twitching and shifting with his emotions and each movement, the chains chiming gently as he moved. "Only get extra dressed up for you, sweetie."

"And I appreciate it, honey," she teased back.

His wings were twitching in time to the music, and she'd seen them do that before, just not so...big. "...feel like overcompensating tonight? Where'd you even get that jewelry?"

Henry nearly snorted his drink, and Mabel cackled while Dipper looked affronted again. "See if I try and dress up for you again," he huffed, glancing at her out of the corner of his eye, all affronted dignity, and he reminded Pacifica of the cat her mother had had once, all false dignity covering amusement and embarrassment. "I don't know, you try and be formal for someone..."

Pacifica spotted her parents coming towards them and decided it was too perfect an opportunity to miss. "And you should be showing them off," she declared, threading her arm though his. Now that she was closer, she could see the earrings and ear cuffs Dipper was wearing, as if to accent his nonhuman ears, multiple thin chains connecting cuffs and rings, like he was going out of his way to flaunt every single bit of non human anatomy he had.

Knowing Dipper, he probably was. "Come on, my parents are headed this way. Let's have some fun. Plus, we match. Let's take advantage of it. I still want the details on that jewelry."

Involuntarily the three of them glanced down at Pacifica's dress, a formal yet somewhat frothy affair of black and white, with black and white pearl jewelry and white gloves, and two of them knew she'd probably picked it to irritate her parents.

Grinning, Dipper bowed and tucked her hand better into his elbow, one wing sweeping around to give Pacifica a backdrop of stars and gold chain. "Well, how can I refuse such a gracious offer?"

The two disappeared into the crowd, still teasing and barbing each other, and Mabel elbowed Henry. "And you didn't think we'd be welcome here," she teased. "Come on, I think Candy's at the cheese and chocolate fountains. Gotta keep up tradition."

Henry followed the sound of shrieking laughter to the living room, pausing in the doorway and leaning against the frame with a slowly spreading smile. Automatically he caught the camera Mabel tossed to him, raising it so he could continue to film three tiny redheads and his wife as they wailed on the demon in their living room.

Dipper was laughing so hard he was letting off little bouts of blue fire, not big or hot enough to hurt, and little yellow sparks, gold tears streaming from his eyes as he squirmed to get away from eight sets of tickling fingers – none of whom were playing fair, especially when one set belonged to the twin that knew all his weak points.

His little wings were buzzing so fast they were a blur, and Acacia was giggle snorting as she tried to get at the base of one (a major weak point in tickle fights, falling right between the back of Dipper's knees and behind his ears, which he still thought only Mabel knew about).

Dipper squeaked, and the frantically buzzing little wings sprang into full size with a thwoomp.

There were a few seconds of stunned silence as everyone stared at each other – the kids tumbled to various corners of the room, Mabel pinned against the wall by a wing, and Dipper, now wedged upside down between armchair and couch – blinking in surprise, Dipper as much as the rest of them.

(The rest of the video was too shaky to watch properly, due to how hard Henry was laughing once the first of them broke and started giggling.)