Based on this picture that frikineitor143 drew. art/Monster-falls-Monster-dance-535317257

Pacifica- c'mon, it's like you've got FOUR left legs now!
Dipper- hey, not my fault this tile floor is slippery!

(It had been a week since an ancient spell was unleashed upon the town, turning the inhabitants into monsters, some more slowly than others)

Dipper: I still have LEGS, Pacifica!
Pacifica: Well, the other girls don't ride on MY back.

Dipper- hey, I'd give YOU a ride, but you don't exactly fit... and you end up nearly strangling me.
Pacifica- naga-like instincts, Pines! I can't help it!
Dipper- wait a minute... where'd Mabel go?
Pacifica- probably in the tub. You know she can't last long outta the water.

Wendy, who had become a wolf-girl, came towards them.

Wendy: We even have to keep Ospreys from attacking her.
Dipper: Do I have to give you a ride now?
Pacifica: Well, she'll only give you fleas.

Wendy- EXCUSE ME?! I DO NOT have fleas! And at least I can attract a guy without hypnotizing him!

(Dipper jumps back into Pacifica's arms)

Dipper: WENDY! Don't startle me like that!
PAcifca: Yeah! Deer get startled easily, Wendy! Sit!

Wendy- *rolls her eyes* That won't work on me; you guys may have let your monster instincts overtake you, but I haven't.

Pacifica: How are you adapting to your new monster form?
Dipper: I've a much bigger appetite, and eat tons of plants. Even some that people can't eat, but deer can.
Pacifica: I won't let Wendy chase you, Dipper. I can turn her into a statue!

Dipper- she's not gonna do THAT! ...but I have seen her eating a lot of raw meat lately.
Pacifica- I know. And I had to triple make sure none of the hors d'oeuvres had bacon or else she'd be going crazy right now.

Pacifica: Has Soos completed the water carrier for her?
Mabel: Yeah!

Dipper, Wendy, and Pacifica look to see Mabel as a mermaid, rolling over in a high-tech mobile tank of water.

Dipper: How's being aquatic treating you?
Mabel: Well, I've got a craving for fish, crabs, clams, oysters, and shrimps. It's like, I gotta EAT!
Dipper: Same with me and plants!
Pacifica: You've also got two stomachs now.
Dipper: We're ALL giving in to our new monster instincts.
Wendy: I'M not. (She itches herself with her foot)

Dipper- you so sure?
Wendy- I was able to do that before I changed. You may not know this, but I'm very flexible, human or werewolf.
Mabel- at least you don't got parts of your body falling off like Robbie. I swear I've had to re-sew his arms back on 12 times since the change.
Wendy- Let Tambry do that for you, she is a succubus now; she feeds on his love.
Dipper- you know I can't help but wonder how Soos was able to make that, what with him being a slime creature now.
Mabel- Grunkle Stand and Grunkle Ford helped. Being a gargoyle and owl creature didn't diminish their handy skills.

Pacifica: Is Soos having trouble staying solid? I could turn him into a statue.

Mabel- he can stay solid, he's just gooey.
Dipper- and I'm not letting you turn my best bud into a statue!

Mabel: I'm thirsty!
Dipper: Let's get her to the lake?
Wendy: As long as she doesn't swallow sailors.^^

Later, at the lake…..Mabel is splashing around and swimming near a rocky beach, eating freshwater clams raw. Dipper is eating some shrubs, eating more than a normal human would.

Pacifica: Wow! You twins eat so much! More than you could before! MAybe I should go for that pig?
Dipper: Mmmpphh. Don't bother. Mmmmm.
Pacifica: That makes 5 pounds of plants you've eaten. Mabel's appetite might be bigger than YOUR's!^^
Dipper: What makes you think that?
Pacifica: I heard a guy singing while fishing over there, but I heard a splash, and when I looked again, the guy wasn't fishing, his gear was left there, and I'm certain that Mabel's following the legend of sirens and such.

Dipper: What are you saying?
Pacifica: Look at her. She's got a content look on her face, licking her lips, and…..

BURP!

Pacifica:…..AND she made and unnaturally loud burp.
Dipper: OMG. She just burped out a hat!
Wendy: I'm nervous. Dipper's got TWO stomachs, and is part deer, so it makes SENSE to have a big appetite, but THIS is weird, even for our adventures.

Dipper- and what with all this happening after Summer-ween, I'm surprised it's still happening.
Wendy- when you can, ask Ford when this'll be over... when he's not spitting up pellets.
Mabel- guys, I didn't eat a fisherman, I just ate a sandwich he kept in his hat.
Pacifica- who keeps a sandwich in their hat?
Dipper- we're all monsters and you're curious about THAT?!

Dipper: PAcifica, are you eating rodents?
Pacifica: No. Cows and pigs.
Mabel: PIGS?!
Wendy: You're scaring her.
Pacifica: I'm telling the truth though.

(one of her hair snakes hisses)

Pacifica: Shut up, Rolf.

Mabel- you named them all?
Pacifica- I can't exactly style them, so what else am I supposed to do? Besides Mabel, I can't eat your pig; he keeps flying out of my reach.
Mabel- Waddles grew wings?
Dipper- I guess this monster spell didn't just effect the humans.

PAcifica: Hold on fellas, I'M hungry.

She slithers into the forest, squeezing sounds are heard, a loud GULP is heard, and she slithers back with a massive bulge in her stomach, licking her lips)

Dipper: WHAT did you eat?
Pacifica: Ummmm…..an Elk and wolf?
Dipper: Wolves don't live around here. A coyote. But…..an ELK?
Pacifica: Dipper, I'm NOT a cannibal. Relax.

Dipper- OK, this town does not have enough to fill our dietary needs. I need to talk to Grunkle Ford and see if there's a cure for this spell.

Pacifica: Yeah, let's get going! (Another hair snake start hissing in her nostril) Matt! Knock it off!

Dipper- maybe you should get a haircut.
*all of Pacifica's snakes squeak in terror*

Pacifica: Don't scare them!

Mabel- Dip, you can complain later; I'm getting the need to get back home here!
Wendy- I got this. *puts Mabel on her back and runs to the Mystery Shack*

Later…..

Mabel is splashing around in the tub, getting water on the floor, making leaks.

Mabel- thanks for taking me here Wendy.
Wendy- can't let one of my best friends suffocate to death.

Pacifica- alright, so you're just gonna go downstairs and ask Ford how to cure all this?
Dipper- unless he and Stan are having an aerial dogfight again. I'm surprised Stan is able to fly so high what with being a living statue and all.
Pacifica- I don't remember using my powers on him.
Dipper- He's a gargoyle; they turn into statues during the day and come to life at night.

Mabel: I thought that gargoyles turning into statues during the day was only in that Disney cartoon.
Dipper: Gargoyles, it was called.

Downstairs…..

Ford: Kids! WWHHOOOOOOOOOO'S there?
Pacifica: Seriously? Owl jokes?
Ford: WHO are you to talk? Hoo!

Dipper- at least he's making jokes against himself and not us.
Pacifica- you're right dear.
Dipper- Pacifica...
Pacifica- not THAT kind of deer.
Ford- cute jokes, but what are you kids doing down here?
Dipper- we need to know if you've found the cure for all this, and if you haven't, when will you?
Ford- I'm trying, but Stan won't come down here to help me.
Dipper- it's day-time, he's frozen as a statue now.
Ford- oh... I didn't realize that. Well, once the books dry off I'll start looking for a cure.
Dipper- they got wet?
Ford- sorta, the handy-man picked them up with his gooey hands.

PAcifica: That MORON! UGH.
Dipper: SOOS! C'mere!

Ford- he's not here. His girlfriend came by and they've been gone all day.
Dipper- oh, Melody flew in?
Ford- yes... literally. She's turned into a half-bird creature.
Dipper- so... this monster disease is spreading across Oregon?

Pacifica: Great. I'm gonna be a Naga for the rest of my life!
Dipper: Calm down, we'll find a way!
Wendy: We'd BETTER find a way.

Dipper- Wendy, how'd you get down here?
Wendy- you left the door open. I kinda freaked being stuck in the elevator for a bit though.
Ford- it seems beastly instinct are starting to take those effected by the spell over. We need to get working on the cure. *lets out a giant screech like an eagle* That... wasn't intentional...
Dipper- Grunkle Ford, hold on for a bit... *turns the light on* Wait... you're not half owl... you're a GRIFFIN!

(The fur on Wendy's back stands up as she snarls at Ford)

Dipper: Calm down Wendy!
PAcifica: I've got a special power!
Dipper: PAcifica!

(Pacifica starts to turn Ford into stone out of defense.)

Dipper- you two CHILL! He's not doing anything wrong.
*Dipper has Pacifica stop, and he's only stone from the waist down*
Dipper- now change him back.
Pacifica- uh... I don't know how...
Ford- oy, Dipper, looks like it's up to you. The journals should have dried off by now.

Pacifica opens the journal.

Pacifica- "Alright, it seems the ingredients we need are spread across Gravity falls. We need two underwater plants from the lake, two roots from in the forest, and a giant cauldron full of boiling water to mix it all in."
Dipper- alright, that seems easy enough. You and Mabel can get the plants from the lake, Wendy and I'll head into the forest and get the roots, and Ford can stay here to boil the water."
Pacifica- hold up, there's one more thing, after everything's mixed together, a special incantation has to be recited while the cauldron is lifted into the sky.
Dipper- but... none of us can do that.
new voice- except for one!
*entering the dungeon is Stan*
Ford- Stanley, where you been?
Stan- frozen as stone all day. One of the hindrances of being a gargoyle, but no worries, once the potions finished I'll take it outside and lift it into the sky.
Pacifica- hold on; it has to be brewed outside, not inside.
Stan- easy fix. *lifts Ford and carries him outside*
Pacifica- alright, I'll get Mabel and then we'll all set out to get the ingredients.

Stan: Get going. I got frozen while taking a leak outside.

(Everyone laughs)

Ford: Must've been awkward.
Pacifica: Just do your part.
Dipper: Let's get going!

*upstairs*
Mabel- *to Pacifica* alright, just lemme get in my giant tank and we'll head to the lake.
Pacifica- luckily being a Naga also makes me a better swimmer.

Wendy- think you can keep up with me?
Dipper- I need to track down the roots and you need to dig 'em up. We can do this.

Dipper and Wendy go hiking by a stream, searching for the plants that'll provide the roots required.

Dipper: Being part deer, I now have great knowledge of the region's plants.
Wendy: Well, that's just a give.
Dipper: Look over there!

Dipper points to a sandy bank, where some violet tube-like flowers are growing.

Wendy: Dad tells me to stay away from those plants.
Dipper: Their roots are what we need!
Wendy: Alright!^^

*Dipper grabs the plants and tries to pull them out*
Dipper- DAMN! These are some deep roots!
Wendy- I got this.
*Wendy starts digging until she's halfway into the ground and is able to pull the plants out with ease*

~at the lake...~
Mabel- you ready, Pacifica?
Pacific- let's do this!
*Both she and Mabel dive deep into the water*

Mabel- hey, our appetites have been increased with these monstrous appearances.
Pacifica- we're ALL gonna have huge stomachaches when we turn back to normal...

They reach the plants. Pacifica gets them, but Mabel is then distracted by a hook with a chunk of fish attached to it!

Mabel: Oh my! (Licks her lips)

On the surface, a government boat is trying to get samples of the town's monsters. They've got a big collection already.

Agent #1: Anything yet?
Agent#2: Even though, it's been successful, an aquatic creature would help us.

the agents are Trigger and Powers)

Powers- what're we gonna keep it in? It's not like we have a tank up here.
Trigger- dead or alive, we'll still have a lot more proof.

~under water...~
*Mabel swims towards the bait, but Pacifica tries to stop her*
*Pacifica wraps her naga-tail around Mabel's body, holding her back*
*Mabel looks back and Pacifica shaking her head, as she's unable to talk under-water*
*Mabel just frowns and slaps Pacifica with her fish-tail, causing the Naga to let go*
*Mabel bites into the bait and the hook catches her lip, and the agents pull her up*

Trigger- YES! Caught one!
Powers- reel it in!
*Trigger and Powers pull the rod and reel Mabel in*
Trigger- oh my goodness! A mermaid!
Powers- with all the creatures we have in the cage here, this isn't a surprise*
*Mabel is screaming in pain from the hook in her lip, and Trigger and Powers throw her in the cage with the others*
*the others are Wendy's friends; Thompson as a Satyr, Robbie as a zombie, Tambry as a succubus, Lee as a Na'vi, and Nate as a were-leopard*
the group- Mabel!
Lee- oh no, they got her now!
*with a lack of water, Mabel's face begins to turn blue as she begins gasping*
Thompson- guys, she's suffocating! What do we do?!
Tambry- hey, I'd use my powers to seduce the agents to letting us go, but I can't get this blindfold off!
Robbie- and my fingers fell off trying to get it untied!
*with what little consciousness she has left, Mabel yanks off Robbie's arm and sew back on his fingers, then throws it outta the cage*
Robbie- ah, I get it!
*Robbie mentally controls his arm and trips the agents, then takes the key from Powers pocket*

*As Robbie uses his arm to free them from the cage, deep under the water, something whizzes past Pacifica*
Pacifica- *thinking* what was THAT?!

~on the surface...~
*Something bursts from the water and launches at the boat*
Deep voice- LET GO OF MY FRIEND!
*Grenda lands onto the boat with octopus tentacles like Ursula*
*Grenda grabs the agents and flings them into the water as the cage is unlocked*
lighter voice- seems we came in the nick of time
*Candy climbs up, now a water goblin*
*Lee lifts up Mabel, now unconscious, and throws her into the water*

*Pacifca sees Mabel land and pulls her under so she can start breathing again*

~back in the forest~
*Dipper and Wendy are heading back to the mystery shack with their roots*
Dipper- do you get the feeling that we just missed a lot of action?
Wendy- nah, not really...

Mabel- hey! You're not the one with an unapproved lip piercing!
Pacifica- you could've pulled it out.
Mabel- it hurts!
Stan- we'll fix all this later, did you kids get the ingredients!
Wendy- we did.
Pacifica- same here.
*Wendy, Mabel, Pacifica and Dipper all hand Ford the root and plants and he puts them in the cauldron of boiling water*
Ford- now when this turns green and a large puff of smoke comes out, then it'll be ready. Stanley will then fly into the air with this cauldron and once he's above the tallest tree he will let it go. Then the cure will be distributed and everyone'll turn back to normal.
Stan- myself included?
Ford- of course.
Stan- then... how am I gonna land safely on the ground without my wings?

Soos: I'll catch you Stan!
Stan: I get the feeling that you'd be only too eager to do so.

Stan lifts the immense cauldron into the air, and a wave of pure magical energy is released. People who had become monsters are transforming back into people. The group is returned to their normal forms as Stan falls onto Soos, with the cauldron landing nearby.

Soos: OOF!
Stan: I say medical treatment is needed for Soos.
Soos: Ooog!
Dipper: Pacifica! You've become fat!

Pacifica DID become bloated, due to the immense meal she had as a Naga.

Pacifica: BUUURRRPPP! We probably should have waited a week before doing this.

Ford- I forgot to mention there would be some nasty side effects to using this cure. You'll be back in shape tomorrow morning, but don't expect to get a good nights sleep.
Pacifica- why would my body shape effect my sleep?
Ford- whatever is ingested soon gets digested.
Pacifica- uh-oh...
Dipper- I'm happy I just ate some leafy greens.
Mabel- the fish hook is still stuck in my lip!

Ford: I'll see what I can do.

(He pulls a first aid kit form his coat)

Mabel: What're you doing?
Ford: Pulling it out. (Produces some tweezers)
Dipper: Be careful!

Ford- C'mon, I just cured a monster virus. I can pull out a fish hook out of my great-niece.
Dipper- without hurting her?

Ford: Let's find out!
MAbel: Careful!

Stan- Dammit Ford, NO! We're taking her to the hospital for this.
Ford- with all the debacle that's been going on today, the line to get in is probably 5 miles long.
Stan- I'd rather she wait and get it removed painlessly then try and explain to her parents why she's missing her lower lip.

Ford: Want me to take her there?
Soos: I'll go with her.

(That night, Pacifica shares a bed with Dipper while Mabel gets the hook removed)

Pacifica: I worried Dipper.
Dipper: She'll be back in a few hours. Maybe she can make new pajamas for you. You need need new ones.
Pacifica: I've gained 58 pounds with that monster stuff.

(Dipper snuggles Pacifica)

Dipper: You're soft.^^
Pacifica: Thanks

Dipper- kinda feels better laying down without 2 additional legs.
Pacifica- and at least I have legs to fit on the bed.

~downstairs...~
Stan- I gotta say, it feels better to know I won't turn to stone in the morning.
Ford- so true, and at least I don't have the urge to kill every rodent I see.
both- but I'm gonna miss the wings... *look at each other* JINX!

Soos returns with Mabel from the doctor.

Mabel: They let me keep the hook!
Ford: You got off the hook this time! Hahaha!
Soos: Dude, enough with the fish jokes.

Ford- I thought you were gonna make the joke. I just wanted to beat you to the punch.
Stan- you didn't, I got the last glass. *throws the empty pitcher of fruit punch away*
Ford- not THAT kind of punch Stanley. And I thought you were jinxed...
Stan- I thought you were.
Ford- point taken.
Mabel- well, I'm going to bed.
Ford- you might need this. *tosses Mabel her camera*
Mabel- ...I think I know why! *runs upstairs to see Pacifica and Dipper both asleep, snuggling each other*

They don't notice her at first.

Dipper: Oh man. Pacifica, you're just so SOFT.^^
Pacifica: I think you're entranced by this. I gotta do something about this fat.

Dipper- you remember what Ford said, you'll be back to normal by tomorrow.

Mabel is astonished by PAcifica's new weight.

Pacifica- *face turns green* uh oh... *jumps out of bed and rushes to the bathroom*
Dipper- what just happened?
*they both hear Pacifica barfing in the bathroom*
Mabel- I think she's losing weight the normal teenage way
Dipper- Bulimia is not normal, Mabel...

PAcifica: I'm not losing weight, I'm BARFING! (Barfs more)
Dipper: Need help?
Pacifica: Yeah!

(Dipper runs to Pacifica, using one hand to grab her plump belly, the other to stroke her back.)

Dipper: Let it out.
Pacifica: I think I ate something bad!

Mabel- probably all those live animals...
*Pacifica's belly begins to deflate as she continues to hurl*

Pacifica: Mabel? PLEASE get me lots of water!

Mabel- yeah, you need to rehydrate... can't believe I missed such a great scrap-book-urtunity.

Dipper: This ISN'T a good time.
Pacifica: WATER!

*Mabel grabs a bottle and runs it up to Pacifica so she can rehydrate*

(Pacifica brushes her teeth, rinses, and drinks like heck)

Pacifica: Thanks! I'm still plump, but I'll be alright.

Dipper- just don't make a habit of this. Anorexia isn't as healthy as so many of those wannabe cheerleaders think it is.

Pacifica: I heard that my dad makes MONEY off those people.

Dipper- how?
Pacifica- he set up a rehab center, charges a huge amount for admission, and cuts a lot of costs on the techniques those so-called 'doctors' use. More than half the patients end up turning back to their addictions and bad habits.

Wendy: That's unnaturally EVIL!

Pacifica- it's my dad…..