Caution Should Be Used While Handling Medications

by FlyofJars47

Rating: mature
Tags: My Little Pony: Friendship is Magic, Zecora, Rainbow Dash, Fluttershy, Sex, Twilight Sparkle
Length: 2987

Zecora gives Fluttershy pills to assist with Angel's growth, pills not for Fluttershy to consume. But she does of course because clopfic exposition. Twilight tries to help but makes Fluttershy's growth worse.

Zecora gives Fluttershy pills to assist with Angel's growth, pills not for Fluttershy to consume. But she does of course because clopfic exposition. Twilight tries to help but makes Fluttershy's growth worse.

Contains: macro, growth, expansion, insertion
Does not contain: futa, crush, murder

Published 2016-06-01 03:40:01 UTC
Last updated 2016-06-01 03:40:01 UTC

Caution Should Be Used While Handling Medications

RAP RAP RAP

“Who is out there? Who has found my lair?”

“Umm... Fluttershy,” answered a meek voice.

Zecora yanked the door open. She squinted her eyes before recognition struck her face. “Ah, Fluttershy, my friend! What brings you to this end?” She held open the door.

Fluttershy entered, and Zecora nudged the door closed.

Fluttershy looked around the hut interior with a blank face. Zecora raised her eyebrows, as if to say, “Well?”

Fluttershy took a nervous breath. “Well... it occurred to me that Angel is quite small for a rabbit. And at my last check-up, I asked Doctor Hooves's opinion on it. We made an arrangement that I could bring Angel in. So I did, and Doctor Hooves said Angel should be larger by now. Angel eats his food as normal, but he hasn't gotten any bigger. Angel's severely underweight, and Doctor Hooves said he may develop health issues. He was sorry to say he didn't have medications for bunnies. Do you have anything that could help me out?”

Zecora put a hoof to her muzzle, thinking.

“Please,” Fluttershy murmured. “If that wouldn't inconvenience you.”

Zecora got a bottle from a shelf. “This concoction should do the trick for you. But use caution, for this is a dangerous brew.” As Fluttershy took it, it made a hollow, plunky noise. Several pills. She eyed the label. NOT FOR PONY CONSUMPTION. “Such a problem was the reason for this potion, but smaller animals only. Entertain no other notion. Smaller animals' metabolisms have a much different rate. Do not ingest this, or you may not like your weight.”

That evening, Fluttershy hummed as she prepared her hay sandwich. Her friends were coming over for dinner soon. Everypony was bringing a different item, and she had volunteered for sandwiches. Turning, she spotted a bottle on the edge of her counter.

She forgot to give Angel his pill! She opened the bottle, shook out a pill, and turned to deposit it in his food dish. Her tail whacked the bottle, scattering pills across the counter. “Oh Luna!” She frowned, tossed the pill into Angel's food, cleaned up the mess, then returned to preparing sandwiches. As she pressed the top bread down on hers, she didn't see the pill that had flown into it.

A knock at the door. Just in time. “Come in!” she chirped. The quintet of her friends paraded through the door, exchanging greetings with Fluttershy and savoring the aromas of the different foods. Rarity complimented Fluttershy on how well the table was set. Pinkie Pie was a bit disappointed about the lack of party décor. They put their foods down in the middle of the table, sat down, and dug in. They ate, chatted, and laughed, no different from their picnics together. Fluttershy sat at the end of the table, munching her hay sandwich, being happy with the rest of the bunch until...

“Oh dear,” she muttered and put a hoof to her tummy.

She felt strange. It wasn't a stomachache. It was like the feeling one gets when just going past the peak of a roller coaster. A weird, light, floaty feeling, but not a bad feeling. It radiated out from her core to her limbs, slow as sap. Her friends were locked on to Pinkie, who was in the middle of some long, convoluted joke. Fluttershy tried to focus in too. She fidgeted in her seat. Was it always this uncomfortable? And... was she... looking down the table a bit higher than a moment ago? Then a little higher. Then a little higher. Biting her lip and feeling a sweat coming on, she looked to the floor. Indeed, the floor was falling away from her, as if she were taking off in a hot air balloon. She shrieked, and her friends wheeled.“Fluttershy, what's wr- Oh, dear Celestia!” Twilight yelped. “What in tarnation?!” Applejack gasped. Her friends' faces faded from jovial to mortified. A look of sheer panic painted Fluttershy's. As her head climbed higher and higher toward the ceiling, she looked down at her growing body. Her hips, thighs, and rear were growing a bit faster than the rest of her. Her thighs started to spill out over the seat's edges as the chair's back supporters began cutting into her swelling butt. The wooden chair creaked like a sinking ship under her rocketing weight. Then it broke with a loud splintery snap, and a thunderous thud resonated throughout the cottage. Her legs were growing under the table. She scrambled backwards, trying to get out, but found she could not when her rump met a wall. Just when her expanding thighs hit the table bottom and started lifting it, sliding plates down to shatter on the floor, her growth stopped.

Fluttershy glanced from face to face, managing nothing more than a pleading expression. Words eluded her. They were still statuesque, jaws agape. Except for Twilight, who was looking down and mouthing things to herself, lost in thought. Fluttershy silently thanked them for not running and screaming. She felt like such a freak. Just then, she knew she had somehow ingested one or more of Zecora's pills. So, she explained the situation, and as she went on, they calmed down.

“I'll go see Zecora first thing tomorrow morning. We'll figure something out.” Twilight assured.

“Oh, thank you Twilight.” Fluttershy had to speak even softer than usual to attain a normal speaking volume.

“May I borrow the bottle for studying?”

“Yes. Certainly.” But a fear rose in Fluttershy. Zecora was... grave. And she hadn't said anything about a cure.

That night, Fluttershy learned that she was too big for her four-post bed. So she pulled her mattress on the floor and slept on that. As she dozed, her body underwent changes. Her frame started elongating, bones pushing outward. Her hooves stretched further and further, inch by inch. More and more meat and fat added onto her mass. Her succulent, ballooning ass formed a deeper and deeper imprint in her mattress. If she had been wearing her usual nightgown, her curvaceous hips and full thighs would have torn right through. Her body swelled and swelled, taking up more and more space. Still deep in sleep, she turned over on her side. Her growth coasted to a halt when she had almost filled her bedroom.

The next morning, Fluttershy's eyes opened, and she made to stretch. But could not. Why was the wall so close to her head? Then it hit her. “Oh no...” she sighed. Her body, packed into the room, was almost in the fetal position. She could move her limbs to some degree, but not enough to turn around in the room, let alone squeeze her Brobdingnagian form through the door. Just as much, her colossal hips prevented her from shifting position. Her hip grazed the ceiling just enough to wedge her in. She could feel the door frame to her bedroom squishing into her monumental ass. She could do nothing but lay there.

Later, her ears perked up. A knock at the door. “Come in.”

A creak. “Fluttershy, it's Twilight.” Fluttershy heard hoofsteps pitter patter around her cottage. “Where are you?”

“My bedroom.”

Twilight turned the doorknob, but she didn't have to pull. The weight of Fluttershy's ass pressing against the door pushed it right open. Twilight jumped back, then stared at the globular asscheeks blocking her entrance, sideways, one on top of the other. She wasn't surprised by Fluttershy's new size. Her visit with Zecora had prepared her. “Umm, Fluttershy? Would you please move a bit?”

“I'll try.” The massive butt scooted forward a bit, jiggling all the way.

“Fluttershy, that's not enough. Could you spread your legs maybe?”

Twilight could see the muscles working beneath the fur of Fluttershy's gigantic ass. Her thighs spread apart some. Minimal room, but Twilight knew Fluttershy was doing her best.

“I'm coming in.” Twilight took a deep breath before mounting Fluttershy's bottom thigh and worming her way through the gap. By Celestia was it tight. When she tumbled out onto the bedroom floor, she was gasping for breath.

“Oh dear, Twilight. I'm so sorry.”

“It's all right. Forget it.” She tried to catch her breath. “I visited Zecora today. I'll skip euphemisms. The bad news is, she doesn't have a cure.”

“Oh no!” Fluttershy cried, putting her hooves to her face. “I'm going to keep getting bigger and bigger for the rest of my life?”

“Nonono,” Twilight assured. “The good news is, I do have a cure. A sort of reversal spell. It has to be cast on a garment of clothing, for the magic affects the pony through skin contact. Rarity's already on the job making a rather large garment, and she doesn't have a ton of material available right now, and the garment must be very close-fitting to be effective, so...”

Fluttershy raised her eyebrows.

“So it's a pair of panties. I told Rarity to make the largest pair she could. So that we don't have to worry about them being too small. So you can... grow into them. Just to be on the safe side. And I'll put another spell on them so they will not tear.” She eyed the walls with an apprehensive look.

“I know, Twilight. It's okay.” Fluttershy said, reading her thoughts. “I'm going to outgrow this room.”

A few hours later, after Twilight left, the feeling returned. Her head hit the wall while her ass pressed against the door frame even harder. Her limbs stretched, and she filled the room the best she could until she was beyond mobility. She felt the pressure increasing as cracks formed across the walls. It wasn't painful, and in actuality, she didn't really mind. In fact, the feeling started to give her pleasure. Sure, she'd rather live a normal life, but the feeling of pushing outward through the room's confines, of overcoming the pressure, of becoming greater than, it just felt so good. The walls gave way. The outer wall blew outward. The ceiling cracked apart and collapsed on top of her. But she didn't move. Oh no. She relished the feeling of growing through the ruins of her bedroom. After all the fun rubble had fallen off her body, she rolled outside and stood on all fours. And she kept growing, rising up and up and up until she could see over trees. She spotted her friends approaching over the hills. When they arrived, her growth had slowed, but was going on nonetheless. All but Twilight were trying to hide their shocked faces, awestruck at the staggering magnitude of Fluttershy's body.

“Here you go Fluttershy!” Twilight shouted up. They were looking up, squinting their eyes against the sun at Fluttershy's near forty-foot high, pear-shaped body.

“Oh my,” whispered Fluttershy (It was more of a boom to her friends.). “Thank you.”

She held the panties in her hooves, stepped into them, and the struggle against her rump began. It was close. If the panties had arrived any later, the effort of hauling them over her incredibly immense bottom might have been impossible. If Fluttershy were normal-sized, her thighs would have been substantially thick, and her bubble butt, unarguably juicy. At this size however, they were nothing less than utterly massive. The seconds of the motion of pulling the panties up and around her ass, a curving back-up-forward motion, seemed to drag on. When the elastic fabric snapped down, her tremendous, plump asscheeks wobbled. “Oh!” Fluttershy gasped, blushing.

“Hey, it worked.” She smiled. “I finally stopped growing.” But the feeling returned. And it was intensified. Worry seeped across Fluttershy's face. “Oh no...” She shut her eyes and began moaning with pleasure. The ponies below her felt the ground rumbling. The sound of her straining panties was just audible, sort of like the sound packing peanuts make when they're shook around in a box. Oh, but the panties were so tight.

If what Fluttershy had been experiencing so far were ripples, this growth spurt hit her like a tsunami. The force of her sudden growth knocked her friends back. Her height shot skyward as the ever-increasing tonnage of her flesh, especially present in her titanic ass and godlike thighs, cast a shadow over them. Her cries reverberated across the fields.

“What's happenin' now?” Applejack cried.

Twilight could only theorize. “I don't know! The only thing I can think of is, her body wants to continue growing, but this addition proved to it an obstacle! So, her body kicked into growth overdrive! She shot past the base threshold of the panties! Now they're stretching along with her!”

“An' how far can they stretch?”

“Infinitely,” said Twilight, her voice desolate.

“Well, what're we supposed to do?” Applejack yelled.

Twilight narrowed her eyes. No, that can't be right. Fluttershy's body didn't do this when it met the obstacle of Fluttershy's room. What went wrong? She knew she had cast that spell. She had crushed Zecora's pills into a powder, put it in a jar, put the jar in the right receptacle of her reversal box, and put the recipient jar of powder in the left receptacle. She had found the reversal box in the library's basement not even a week ago. This was her first use. She had turned the coffee machine-like box on and let it run its course. The powder in the left jar should then reverse the effects of the right jar's powder. She had taken the jar and spread its content all over the panties. Had she grabbed the wrong jar, giving Fluttershy the rest of the bottle's growth pills?

“Rainbow Dash!” she shouted.

“What is it, Twi?” The ponies were backing away from Fluttershy's ever-widening hoof, now wider than her cottage.

“Stay here!” With that, she teleported to her lab and sought her reversal box. “Hey, Twilight. What's going-” Twilight put a hoof to Spike's head and shoved him out of the way. Yes. The right jar was on the floor, empty. She grabbed the left jar and teleported back.

She found Rainbow and shouted, “She's way too big for this to be effective pouring on her panties again! Ingestion won't work either! It's got to be deep inside her this time! You have to fly into her anus or vagina, open the lid, and spread it around as hard as you can!”

Rainbow bolted into the sky, increasing altitude by Fluttershy's back leg, or, rather, with it. She was flying so fast, she wouldn't be surprised if she did a sonic rainboom. When she passed the leg's mid-joint, clouds started to whiz by. She pulled up, avoiding flying straight into a leviathan thigh. She had to pull up even sharper when she reached Fluttershy's ass. Before she began the slow curve up Fluttershy's astronomical, and growing, butt, she caught a glimpse of a darker spot, no doubt a stain, on the panties around where Fluttershy's pussy should be.

Fluttershy's moans and cries became piercing screams of ecstasy. Because she just kept growing and growing, it took Rainbow longer to fly over the curvature of Fluttershy's ass than from the ground to her ass. But at last, Rainbow reached the point where the panties ended and Fluttershy's dock began. She flew in, but crashed straight into her asscrack, forgetting that while she was flying down, Fluttershy's body was rising up. Helpless, she began sliding down Fluttershy's asscrack. The air from outside blew down through the infinitely-stretching panties, blasting Rainbow in a fierce wind. The slide steepened the further Rainbow slid down the oh-so-long asscrack. Rainbow spotted a prominent bump ahead. More like a crater. Fluttershy's anus. Rainbow hit the edge of it, caught some air, and had to use her wings to scale it. An earth pony or a unicorn would have fallen in.

From Rainbow's perspective, she was in a valley, between two growing mountains, each within Canterlot range, with a vast sky of panty fabric. It was as if Fluttershy's body existed for one purpose, for one reason. To grow larger. She reached the equator of Fluttershy's ass, fell, and continued the slide on panty fabric.

The two mountains were experiencing earthquakes. The sheer force of Fluttershy's growth caused her asscheeks to jiggle in the tight panties struggling to contain them. To Rainbow, each jiggle was like an ocean wave of assflesh.

She felt a warm wetness on her back. She became aware of a very pungent but not unpleasant smell. The air tasted somewhat salty. Then the panties flattened out. She stood up, having to shift her footing because of the stretching fabric under her. She looked up, just as Fluttershy's cosmic pussy dumped heaps of nectar onto her, drenching her all over, like she was beneath a filling-dumping bucket attraction at a water park. Some got in Rainbow's mouth. Very sweet, almost like wild cherry. She couldn't help but be aroused. She craned her neck back and attempted to take in Fluttershy's voluminous, incalculable mass, weight, and size that was becoming more and more and more. Then she focused on the opened lips, gripped the jar, took a deep breath, and flew in.

Rainbow found herself in a dark cavern, which was only becoming more cavernous by the second. Vaginal juices were pouring on her like a monsoon. She removed the lid, held the jar out at arms' length, and span as fast as she could, Fluttershy's femcum misting off her twirling figure. The thunderous growing stopped. The aperture of Fluttershy's vaginal opening started to recede. Rainbow left the way she came.

Much later, after Fluttershy had returned to her normal size and had united with her friends, Twilight stood gazing across the fields, puzzled. Now what to do about the pair of panties lying across several fields, more than enough to cover all of Ponyville? As she pondered this, she struggled to grasp that, earlier that very day, Fluttershy had filled them.