Envy is Magic

by Cosmonaut

Rating: mature
Tags: Cutie Mark Crusaders, Rarity, Sex, Sweetie Belle, Anthro, My Little Pony: Friendship is Magic, Porn, Fetish
Length: 17336

Skinny Sweetie Belle is waifish and thin... until a magic spell starts making her grow

What's a unicorn to do when life isn't going her way?

That question has ached at Sweetie Belle for years, as her friends all blossomed into their adult selves while poor Sweetie stayed as skinny as she was since seven. With no end in sight to the jeering, bullying and constant sense of inadequacy Sweetie is just about to give up on herself until... a solution presents itself in the unlikliest of ways...

Edited by Klamnei

Cover art by myself.

Published 2019-11-15 23:50:02 UTC
Last updated 2019-11-30 00:17:46 UTC

Below Average Unicorn

Sweetie Belle woke up, and immediately wish she hadn’t.

It's not that she was late for school. In fact, she often rose out of bed quite early. There weren’t even any tests scheduled for today that she should be worried about. The sight awaiting her however was enough to ruin her morning. She hoped she was still dreaming but as Sweetie rubbed her eyes and deftly swished her curly mauve hair out of her face the source of her dismay remained in view.

Three dresses hung from her closet door, their elegant beauty shining agonizingly bright in the dim light of her bedroom.

“Great…” Sweetie grumbled, tossing her blankets aside and trudging over to her bedroom mirror. The pale, skinny girl in the mirror balefully traced her eyes over Sweetie Belle and sighed. The dresses WERE fabulous, as could be expected of a talented fashionista. No doubt Rarity had prepared them last night in anticipation of school picture day near the end of the month. They were delicate, fabulous, sexy, and slightly revealing without being trashy. Truly appropriate clothes for a yearbook photo. The problem was that she would be wearing one of them.

Despite being in her late teens Sweeties body hadn’t quite gotten the puberty boost she’d expected. Every year she was waiting for the day her immature little body would begin its transformation into adulthood. With another small sigh, Sweetie pulled up the hem of her shirt and eyed the mirror mournfully.

Her bottle green eyes traced the cute, round curvature of her adorable girlish face, to her sad, undeveloped chest that didn’t even necessitate a training bra. Further down her soft, slightly pudgy tummy sat nestled between her less than ample hips. At five-foot two she was barely taller than she was at 10 years old, and certainly shaped the same. Her legs weren’t stick thin, but they weren’t shapely either. Her arms were skinny limp noodles… and the sad excuse for a rump nestled below her tail belied all hints of maturity.

With the speed of a sad turtle, she undressed, the child sized nightshirt falling next to the hamper by her closet. Sweetie Belle swished her long, fluffy tail and laid out her clothes for the day. Her wardrobe had changed little over the years, despite her sisters repeated offerings to create new custom clothes just for her. A lot of her clothes were as immature as her body. Sweetie had just expected to one day outgrow her old digs and then would accept Rarity's offer to craft some fitting outfits… however, that day never came, and Sweetie could sense that her older sister felt burned by the repeated rejections to create new clothes.

Last year Sweetie had seven outfits to choose from.

“Morning mom, morning dad,” Sweetie Belle descended from the stairs morosely.

“Morning, sugar!” Her father bellowed, walking over and bending down to give his daughter a kiss on the forehead.

“Honey! Cheek! You’re going to poke your eye out on our daughters horn!” scolded wife.

Magnum laughed. “It's not that big, don’t worry!”

A scowl briefly crawled across Sweeties face. “I’ll see you after school, dad, thanks.”

“Ok Sweetie! Have a great day!” Magnum tousled Sweeties hair and marched out the door to work.

The kitchen table was well spread with a variety of healthy looking breakfast items. Bagels, croissants, several kinds of cream cheeses and a pot of tea. A lovingly arranged vase of flowers sat crowned in the middle of the breakfast spread like a tower above a small town. Everything was a little too nice.

“Is Rarity still here?” asked Sweetie Belle, taking a seat.

“In the bathroom, Sweetie,” replied her mother, buttering a poppy seed bagel. “She’s putting on her face.”

“I’m right here darling,” a svelte voice sang out behind her. Sweetie Belle swiveled in her chair as Rarity sauntered into the room.

Tall, sexy, curvy, buxom and naturally beautiful, Rarity typically stood at a lofty five-foot nine, however she had donned 3-inch heels and stood at an imposing six-foot tall. There wasn’t a day gone by the fashionista wasn’t strapped into something that made her taller. The wardrobe she had on was business casual, but with those DD-cup breasts straining the fabric it was more business-sexy, and the black pencil skirt did wonders to accentuate those long, firm legs and plump thighs and rear. It was hard to believe that Rarity never got into modeling.

“Ohhh you look marvelous today, Rarity!” beamed mother, her proud smile a million bucks. “What’s the occasion?”

“I have a business meeting scheduled with a stallion today about a potential swimsuit line,” Rarity pulled a seat next to Sweetie Belle and began daintily adding cream cheese to a slice of whole wheat toast. “If everything goes swimmingly with Hard Bargain I SHOULD have a full swimwear line in time for April. I have several prototype suits in my purse as well, they’re quite lovely and very striking if I do say so myself.”

“Thats fantastic! Can we see them?” asked mother in between bites.

I do apologize mother, but I have them already neatly packed and organized in ascending order of intricacy and I do not have the time to spare,” Rarity's horn flared to life and floated the patterned purse over to the table, clearly packed with garments.

“Okay, I understand.”

“However… I am wearing my second most striking bikini underneath my clothes right now.

Sweetie swallowed her last bit of bagel. “I thought your bra was looking too bright for the shirt you were wearing.”

“Indeed Sweetie. I hope you weren't thinking I was sneaking away this morning with such an obvious fashion faux pas,” Rarity swiftly unbuttoned her conservative white shirt and thrusted her chest out proudly. Her plump, sexy breasts were lovingly cupped by a thin, lacy bright red bikini band that clearly had some kind of embroidered texture in a lighter red diamond pattern that caught the light and accentuated the curve of her milky white titflesh. Inches of cleavage jutted out and wobbled enticingly for any and all to see. It was tantalizing, eye-catching, and absolutely irresistible.

“Wow…. that’s amazing Rarity!” Sweetie Belle exclaimed, her voice cracking.

“Oh my! Rarity that's one of the most beautiful bikini tops I’ve ever seen!,” gushed mother, as Rarity buttoned herself back up. “The material you picked is wonderful! So pretty! And much better than my one piece suits!”

“Thank you, thank you!” Rarity smiled happily. “I’m certain Mr. Bargain will drop dead at the sight of my prototypes.”

“Dearie, you modeled all these yourself?” asked mother.

“Of course, over the past two weeks. It’s why you haven't seen me here for breakfast. I intend to do quite a bit more if these first runs garner approval.

“Well, I think you should have your little sister help you model these outfits to save you some time!”

Rarities light, airy laugh filled the room. “Oh, sorry,” she coughed into her fist, “You were serious about that.”

“Rarity,” said her mother sternly. But Sweetie Belle had already gotten up from the table and was heading out the door, her face burning in embarrassment as Rarity explained that this fashion line was marketed to women… and not little girls.

One tortuous school day later and Sweetie Belle was exiting class in relief. It had been another arduous seven hours of feeling small and inadequate amongst her peers. The slight from her sister had stung her all day and the misery accompanying it was only amplified by her classmates, all of her whom were taller than her. Gym class today had been most agonizing with the jogging they had to do and it was the last period of the day too. Her legs were still sore from the workout and she had lagged far behind her friends. Sweetie bent down to massage her sore calves.

“Hey Sweetie Belle!” a pair of voices chorused.

Sweetie glanced up and smiled weakly. “Hiya Scoots, Applebloom.”

Sweeties two best friends were standing right in front of her with slight smiles on their faces. Neither of them had changed out of their gym clothes yet. Part of the reason she’d left was them. For the past few years she’d watched them grow and blossom into attractive adults while her own body physically stunted. Scootaloo had grown to a staggering five-foot eleven with perky C cup breasts and towered over Sweetie Belle. The many years of training with Rainbow Dash had earned her a lithe, sexy body that was rippling with strong, sinewy muscles (and 14” biceps as she liked to often brag and display like her idol). Applebloom was neither as tall or athletic, standing at a five-foot seven with a much curvier, pear-shaped body and strong legs. Paired with her D-cup breasts and powerful thighs it was like she were twice as wide in the hips as Sweetie was.

“Where didja go right after the bell rang? Y’never split class so early!’ Applebloom exclaimed, sidling next to Sweetie.

“Yeah! And you didn’t even like, wave or look at us either,” Scootaloo plopped down to the right of Sweetie and squatted on the bench, her amazing legs bulging with muscle. “What gives?”

Sweetie Belle leaned back on the bench and shut her eyes. “I’m just tired girls, I wanted to get home so I could get off them and rest.”

Scootaloo considered that for the briefest moment. “Bull!”

“C’mon Sweetie, what’s really goin’ on? I barely see ya like, all DAY and every time I did…” Applebloom bit her lip, glancing to Scootaloo who nodded once. “Ya looked like ya were about to cry.”

Sweetie Belle grimaced and exhaled deeply. “Fiiiine. It’s picture day soon and I’m upset OKAY!”

“Well uh, why’s that for?” Applebloom pulled at the hem of her T-Shirt. “Shoot, I don’t ‘member y’all being cross the last couple years.”

There wasn’t any wiggling out of this situation. Trapped and tired, Sweetie spilled it. She told her friends how she was upset at how puberty never came thru for her, how inadequate she felt around her sister, and the rest of the girls at school, and how the slight insult she dealt with in the morning ruined her mood for the day.

“And to top it all off, I just KNOW there’s nothing happening for me in the future too!” Sweetie wiped the slight tears from the corners of her eyes. “I’m too old now. I’m not growing anymore than I am now and I know it, even though my doctor says there's still a chance,” Sweetie sniffled. “I know it’s a lie to make me not feel as bad, but it just does.”

“You’re beautiful the way you are right now!” Scootaloo leaned over and squeezed Sweetie Belle in a big, strongl hug. “Besides! You’re not a doctor! Maybe things are just going to happen late for you!”

“Scootaloo's right, y’all got to not be upset over this, girl!” Applebloom leaned over and joined in on the group hug, squeezing just as tight.

“I just look like a little kid,” Sweetie muttered out. She had been slouching and her face was literally being mashed with her friends’ big soft breasts. She wished she could just crawl into a hole and die.

The group hug finally ended and the girls offered up some more kind words of encouragement before walking down the dirt road to their homes. Sweetie Belle half-listened and mostly nodded and smiled as if she were in a fog. Her heart was still stewing with emotion as she waved goodbye to them. Maybe some sweets at Sugarcube Corner would make her feel better….

“Come again, Sweetie! And be sure to keep that frown upside down!”

Sweetie Belle giggled and waved Pinkie Pie goodbye. Despite not being a filly anymore the bubbly pink mare always had a bouncy fun demeanor that could cheer anypony up. Sweetie gripped the ice cream cone tightly with her fingers and decided to take the scenic route home. Right now she felt a little better and didn't want to just resign herself to laying in bed all day.

Turning a corner she spotted a scaly purple tail disappearing into the woods to the right down the path. Just for a split-second, but definitely saw it.

“Spike?”

Sweetie Belle chomped the last bit of her ice cream and lightly jogged over-

Bumping right into the dragon.

“Oof!” Sweetie stumbled backwards and landed hard on her tail.

“Sorry! I guess I didn’t see you!” Spike bent down and lifted Sweetie Belle back to her feet so easily she might as well have weighed nothing. “Are you alright?” he asked.

Sweetie brushed at a small dirt smear on her blouse. “I’m okay… what are you doing?”

“I’m on a secret mission,” Spike grinned, revealing a small wagon full of books. “Don’t let ANYONE know.”

“Sure thing Spike,” she smirked up at him. Despite the drake being practically the same age as her, he was still technically a kid. A strapping, six-foot tall kid, but one nonetheless. Years from now he’d be a proper teen and who knows how different.

“Well?” he said expectantly.

“Well what?” replied Sweetie.

“Aren’t you going to ask me what my secret mission is?”

Sweetie giggled. “Then it wouldn’t be secret anymore.”

Spike thought about that for a moment.

“True. But I know you can keep a secret, so I’m going to tell you what I’m up to!” Spike said, reaching down into the wagon to pull out a random book.

“I’m getting rid of these books without Twilight knowing!”

Sweetie Belle gasped. “Really? Won’t she be so mad?! Twilight loves her books!”

“Which is a total problem because then there's too much of them,” he grumbled, tossing her the thin novel in his hands. “These are all reprinted, duplicated, yellowed, damaged fiction novels that have NO value at all and are just taking up space in the library.”

“Oh….” Sweetie thumbed through the slim book and dropped it back in the wagon. “How come Twilight won’t just get rid of them if they’re junk books?”

Spike rolled his eyes. “Twilights kind of a…. book hoarder. I don’t think she physically can bring herself to do something like that. Or ask me to directly.” He paused to pull the wagon further into the woods, motioning for Sweetie to come with. “Even after, ngh, arguing with her and explaining that she should devote shelfspace to new books she actually needs space for I couldn't get HER to do it.”

Sweetie Belle followed Spike down the small trail, careful to avoid stepping on any rocks. “That sounds like Twilight all right.”

After a few more feet they finally made it to a small clearing where a small pit had been clawed out in the middle. Spike started to toss the books into the pit as fast as he could.

“What's the rush?” asked Sweetie Belle, who wasn’t that interested in touching the mouldy old books.

“No rush I just, ugh,” Spike stopped for a second to clutch his stomach. “I had like, 3 huge cups of soda at the Hayburger an hour ago and I want to finish this and get to a bathroom.”

“Just use a tree,” suggested Sweetie Belle, walking over to the wagon.

Spike grimaced. “I don’t really want to. We’re in the forest and I don’t want to like, whizz on a sleeping monster or something.”

“Alright, lemme help,” Sweetie Belle’s horn lit up and she began floating books over to the pile one at a time. They were almost done when her eyes caught a hefty moss-green hardcover book that Spike had just tossed into the air.

“What's that one?” Sweetie asked, snatching it with her magic and floating it over to her.

Spike inhaled deeply and spit a stream of fire onto the pile. The books burst into flame and immediately began cooking. “That’s a copy of a secret cursed spellbook I found once… it’s uh, like, really cursed. That's why I’m burning it.”

“How’s it cursed?” Sweetie held the book in her hands and eyed it. The design on the front was intricate and eye catching, and it felt nice to hold it.

“It’s like, I let Rarity use it and like, it kind of made her mad with power and stuff and like… its bad just throw it in the fire I’ll explain in a minute!” Spike ran into the dense foliage at the edge of the clearing with his claws fumbling at his belt.

“Power...?” Sweeties eyes lit up, her thumb tracing a small circle on the books cover. Sweetie Belle looked at the burning pile of ashen pages, then back to the book, then to the fire again.

“Alright Spike, I’m tossing it into the fire!” Sweetie Belle called out into the treeline, then stuffed the spellbook into her knapsack and turned tail towards home. If Rarity had used it and was still fine what harm could there be in taking a look?

Back in her bedroom Sweetie Belle was sprawled out on the comforter with the book wide open on the pillow. She flipped through it with interest, legs idly kicking in the air as she did.

“These are weird,” she muttered to herself, occasionally spying a oddly titled spell name or visual interpretation of an arcane ritual circle. Some of these spells were very dated and needed multiple unicorns to cast too. Sweetie skipped all of the magic that had extra requirements or seemed too difficult.

“Ooh here we go!” Sweetie stopped at a crude illustration of a very tall adult mare next to an average sized smaller mare. A height indicator was next to them, although the numerics were faded. The larger mare was more than two heads taller. “No circles, no rituals. Solo cast! Perfect!”

Sweetie Belle traced her index finger along the words near the bottom of the text. “The spell hereto written may be executed at any time within the regular duration of Lunar and Solar cycles, discounting partial or total eclipse of either body. This particular magical weave self-casts upon verbal proclamation. Alteration of the spell renders said magic inert and useless as said incantation draws, consumes and proliferates the energy triggered via the Sin of Envy, infused with Lust. No other Sin(s) may substitute.”

Sweetie Belle felt a shudder creep up her spine.

Heart’s Desire, Burning Sleep,” began Sweetie Belle, reading the next line. A sickly green light began filling the black text, “Take All Hate, Emotion Cheap… Ascend Thyself With The Jealous Wicked, Goad All Fools, The Weak Strick-ed.”

The magic lettering flowed up to the tip of Sweetie’s horn, traveling down the spiral fluting all the way to the base, where it disappeared inside of her skull. It felt really nice. Like she’d just had a nice massage at the top of her head. Sweetie Belle sat up and inspected her body for any changes. Not seeing anything she shrugged and pulled herself under the covers. Simmering energy settled within her and perhaps tomorrow she would wake up a new mare.

Second Puberty

It was school picture day and the hall was abuzz with laughter and chatter. A long line of students stood waiting for their turn to sit down and have their photograph taken. Every student was dressed to impress: nice suits, beautiful dresses, makeup and wonderfully prepared hair. Applebloom and Scootaloo, both wearing frilled, colorful clothes and looking drop-dead gorgeous. They waved to Sweetie Belle from their spot in the line.

Sweetie waved back with a weak smile and faced forwards in line. It had been three weeks since she’d cast the spell with no results. Day after day Sweetie jumped out of bed to check herself against her bedroom wall for any sign of increased height. Nothing showed for it. She was still the same five-foot two scrawny girl she’d always been. She didn’t understand why. Jealousy over her classmates, sister and friends had been a daily feeling for years and now the spell she cast didn’t recognize how she felt? What a scam.

She should have thrown the book into the fire.

“Next!” cried out the sharp haughty voice of Photo Finish. Silver Spoon finished her photo and joined Diamond Tiara by the side. Sweetie Belle stepped up to the penultimate spot.

“Ready for the final Yearbook photo of your life?” teased Silver, smirking at Sweetie Belle. “I don’t know why you bother. There’s three perfectly good photos to re-use before this one.”

“Buzz offff,” Sweetie gritted her teeth. “I look great in this dress.”

“The dress looks great because your sister made it,” corrected Diamond Tiara, playing with the extravagant necklace that settled deep into her cleavage. “You wearing it doesn’t do it any favors. Maybe if it was hugging the body of a mare who wasn’t built like a nine-year old it would do you any favors.”

“Next!” cried Photo Finish, the seat ready.

The two taller mares laughed and walked away, their hooves clicking on the tiled floor as they confidently strayed to the refreshments table. Sweetie Belle silently fumed at the two perfect jerks. They didn’t deserve to be that tall, that busty, to have such nice rumps filling out-

“NEXT!” said Photo Finish insistently. Sweetie Belle marched over and sat down in front of the camera, grabbing a bouquet prop of red roses to hold in her hand.

“Hey Sweetie! How’d it go?”

Twist took a seat next to Sweetie Belle. The petite unicorn had stormed to the back of the cafeteria to be alone for a few minutes. She had such a foul look on her face that Photo Finish rejected all 3 takes for her yearbook photo. In a month she would be able to reshoot it and get into the yearbook. It didn’t help at all that Photo Finish was incredibly loud and direct about it either. Everyone heard the fashion mogul screech out her disappointment.

“It went like garbage,” Sweetie Belle muttered, playing with the straw in her drink. “I couldn’t even get a nice photo.”

“Aww, I’m sorry to hear that,” Twist patted her on the back. “Y’know, for the past couple years I never had a good photo either because of my braces. This is the first year I had a good one!”

Sweetie Belle sighed, looking over the redhead. She was always an ugly duckling but the past year had really done work to improve herself. No more braces, contacts instead of glasses, wearing nicer clothes; it was a wonder how a bunch of little things coming together could make such a market improvement.

“It was really nice to finally have that good one. Every year I’d take one and be so unhappy,” Twist prattled on, playing with her frizzy hair.

“Uh-huh,” Sweetie propped up her head with her shoulder, staring glumly as Scootaloo sat down in the picture chair to take her photo.

“And every year I’d be sitting down thinking how jealous I am of everyone else. Especially you in your dresses.”

A tingle of magic buzzed across Sweetie’s horn and she perked up.

“Say what now?” Sweetie Belle said with interest.

“Oh you know… I’m a little jealous of you is all,” Twist continued. “You’ve got the most perfect fluffy curled hair and I’ve got this frizzy mess… and when your sister makes you a dress she goes all out! You look so beautiful in this! I look just okay… and this is just me but I wish I had your face too. I’ve got such chubby cheeks.”

Sweetie Belle’s breath hitched, feeling the magic at the base of her horn sizzle and flow through her body.

“Anyway. It was nice chatting with you! Shady just finished his picture so I’ll talk to you later!” Twist said cheerfully, standing up and heading towards the well-dressed stallion. Sweetie abruptly got up to and raced to the ladies room. Scootaloo and Applebloom slowed their walk towards her and looked at each other in confusion.

The door behind her clanged as Sweetie magically latched it shut. The sensations running through her body right now was nothing short of ecstasy. It was like her clothes were shrinking, but Sweetie knew it must be otherwise. She was growing. Expanding her perfectly fitting outfit.

The training bra she had on was already tight, and getting tighter. Sweetie ran to the mirror with glee. Her reflection revealed it all: her once flat chest was filling the dress. At the front where there was only but a subtle divide was now the outlines of actual breasts and the beginnings of a womanly bosom. Her arms felt equally parts sore and electric as the lengthened imperceptibly. Her legs stretched in size. Soon her matchstick thin legs had filled out and padded with fat and muscle alike, and her hips creaked and widened. For the first time in Sweetie Belle’s young life she had a FIGURE to speak of.

As her body buzzed in the sensation of growth Sweetie did a little dance in glee. The spell wasn’t a dud!

The day after Sweetie Belle was on airs. Beneath her slightly stretched T-shirt she proudly wore a 32 B-Cup bra. It was a day she never thought would come when she could graduate to a regular bra like all the other mares her age. The shorts she had on hugged her rump nicer than ever before. Prior to picture day she barely had a rump to speak of! Measuring her height once she ran home revealed a growth of four whole inches. She was only an inch shorter than Applebloom!

While still not much to speak of it was a marked improvement over how she looked before. Now that Sweetie figured out the proper way to trigger the spell she could correctly utilize it to achieve the figure she wanted. The image of herself, tall, busty, and heads taller than Princess Celestia popped into her head and Sweetie began skipping down the road. Her ultimate fantasy could be realized and all she need to do was seek out the catalysts.

Sweetie turned the corner to and entered Sugary Sweets Snack Shop. The bell dinged cheerfully.

“Just a minute!” a voice rang out from the back.

As Sweetie Belle placed a few chocolate dipped candy canes on the counter to purchase the mare whose voice belonged emerged from behind a curtain of beads.

“Oh! Hello Sweetie Belle! You’re looking great!” said Twist, immediately noticing the changes. “I think we’re the same height!”

Sweetie Belle practically beamed. “I think so too! It took forever but I think I’m finally in the middle of my growth spurt!”

“That’s a really late one!” mused Twist, ringing up the candy. “You’re so lucky! I wish I could get a boost in height at my age like you. It’s so lame still being shorter than your parents. I feel like a little kid still!”

The tingling in her horn began again. Sweetie Belle shakily dug four bits out of her tightening pocket. “Oh yes! I’m fitting in all my clothes so much better now! And some of them not so well!”

Sweetie Belle inhaled as the growth continued. The hem of her T-shirt popped out of her shorts where they’d been tucked in, revealing her flat, smooth belly. The sleeves tightened around her arms as previously small muscles began to swell under her coat. The arousal she felt when it happened last time also increased and Sweetie felt a sticky heat budding in her loins.

By the time the cash register dinged open Sweetie Belle had sprouted another two inches taller. She thanked the wide-eyed Twist and merrily skipped outside. Next stop was Sweet Apple Acres.

The warm sun filtered through the orchard trees as the Apple family picked their way through the northern fields. It was a decent harvest for these particular apples as they were typically difficult to cultivate and more often than not produced little to sell. The ones that did sold at a higher price and were considered a luxury flavor both raw and in baked foods. Applebloom was at the very tip of the orchard sitting on a tree branch, tossing apples into a wooden bucket far below her. She wasn’t very good aiming those fruits however. About a dozen loose apples were scattered around the area.

“Applebloom! I made it!” cried Sweetie Belle, arriving below with a grin on her face. “Sorry for being late! Had to stop for a snack.”

“That’s fine!” Applebloom yelled down. “We got plenty of apples to work with. Can y’all grab the ones I missed and toss them into the barrel?”

“Sure!” Sweetie Belle flared her horn and grabbed every apple she could see with her magic, dumping them into the wooden holder. “Where’s Scoots?”

“West of here. She wanted to do see if she could get more apples than me under an hour so ah said okay and now we’re jus’ picking apples I guess,” Applebloom dropped three apples down for Sweetie to catch. “You’re gonna have to go check to see her bucket once the hours up so let’s get pickin!”

For the next fifty minutes the two mares engaged in normal conversation: talking about school, work, boys, clothes and what they were doing later. Despite the spell being on her mind for the beginning of the conversation Sweetie realized she wasn’t going to get any kind of envious fuel into her and just had a nice talk. It was refreshing and kind of fun doing this menial task. Halfway through she stopped using magic and carted the barrel around physically, surprising both herself and Applebloom at her strength.

“Y’all should be exhausted doing that,” Applebloom said, jumping over to the last tree. She hadn’t touched the ground during her apple picking. “Gotta say ah would have been plum-tuckered out by now.”

Sweetie Belle wheezed, wiping her forehead with her arm. “Yeah… but like… it’s not so bad?”

“Should be,” Applebloom mused, tossing down a few apples. “This tree’s mostly got rotten fruit. We’re almost done.”

“Great,” said Sweetie Belle, leaning against the tree. She took a moment to pull out the handkerchief in her back pocket and then paused to admire her arm. Small muscles shifted underneath her creamy coat. It was quite a different sight than her usual noodly arm. She realized the spell wasn’t only making her taller and sexier, but stronger too!

“And done!” Applebloom jumped down and cleaned her overalls of leaves and sticks. “I got a bushel and a half done in an hour (184?). I bet Scootaloo hasn’t even-”

Applebloom cut herself off, staring at Sweetie Belle in surprise. “Are y’all standing on a rock or something?”

“What are you talking about?” said Sweetie Belle, lifting her leg to inspect her hoof.

Applebloom marched over until they were face to face. Her eyes were just shorter than Sweetie Belle’s. “Why you’re a whole inch taller’n me!” said Applebloom, looking Sweetie up and down. “Are y’all wearing a push up bra?”

“No.” Sweetie Belle said, her hands cupping the bottoms of her breasts. “Just a regular bra. I finally had my growth spurt! Sorry I didn’t mention it before.”

Applebloom scoffed. “Well congratulations! I’m so darn happy for you!” She gave Sweetie a big hug, her larger chest crushing Sweetie’s smaller one. “Me an Scoot know y’all have been sore about yourself for a while. Glad to see ya smiling again.”

“Thanks,” said Sweetie sheepishly. As much as she liked the compliments and praised she wished Applebloom had reacting differently. “Where’s Scootaloo again? I’m going to find out how much she counted.”

“That away.” pointed Applebloom into the distance, towards a thicker grove. “Tell Scoots I’ll be heading to the barn to put these apples away.”

“I will!” Sweetie Belle bent over to pick up a stray apple, revealing her much fuller butt to Applebloom. “See ya later!”

As Sweetie Belle sashayed away, Applebloom admired the gently sway of her hips rocking back and forth. The unicorn looked so good now! And to have a growth spurt so late in her teens was unreal. Now she was the short one between the three of them. Applejack would surely joke about it next time the three of them

“Wish ah could have one last growth spurt and be taller too,” Applebloom said under her breath. “It’d be great to be the bigger sister.”

Sweetie Belle went bow-legged and braced herself against an apple tree from the spike in arousal she felt. A surge of magic had rippled through her body to her very core and she could feel every fiber of her body stretch and swell. Her outfit went from snug to tight, the sleeves stretching around her arms, and her T-shirt rode up further from the eager swell of her expanding breasts, revealing a lightly toned midriff and the beginning of a six-pack. The once slim unicorn now boasted the body of a seasoned athlete.

By the time she reached Scootaloo in the west orchard border, Sweetie Belle had inched up to a lithe five-foot ten with a body far superior to the average mare.

“Hey Sweetie Belle!” waved Scootaloo, relaxing on a log and munching an apple. “You helpin’ Applebloom count?”

“Sure was!” Sweetie Belle beamed, eying Scootaloo’s body like a predator spotting its next meal. The runner looked far less intimidating than she used to.

“What’s the number?” asked Scootaloo, sitting up.”

“One hundred, eighty two,” Sweetie Belle replied, waltzing over to the pegasus.

“Aw nuts! She beat me by twenty apples,” Scootaloo threw the core over her shoulder and snapped her fingers. “Still, I did pretty good if I do say so myself.”

Sweetie Belle sat on the log next to Scootaloo, tail swishing behind her excitedly. “I helped her out a little bit. Not with the picking but holding the catch basket in my arms.”

Scootaloo snorted. “Sorry, you carted that thing around without magic? C’mon Sweetie you ar-”

At that point Sweetie Belle couldn’t resist lifting her arm and flexing for Scootaloo. The orange pegasus gasped and dropped her apple.

“You! Wow! You are BUFF!” Scootaloo clamped her fingers around Sweetie’s arm to check if it was real. She squeezed it a few times, confirmed its authenticity. “That’s amazing! When did you start working out?”

“Weeks ago,” lied Sweetie Belle, enjoying Scootaloo's touch. “I guess it only really started kicking in during my growth spurt the past few days.”

That encouraged Scootaloo to bolt straight up. “No way! You’re taller too!?”

Sweetie Belle proudly stood up and Scootaloo put her hand on Sweeties head and hovered it to her face. Sweetie was only an inch shorter than her at the moment.

“Hot damn! That’s so awesome!” Scootaloo flexed her bicep and brought it up to Sweetie, who mimicked the motion. Scootaloo’s muscle was only a little bit larger than hers.

“Wow!” Scootaloo said in disbelief. “I don’t know what else to say but wow! It’s like this happened to you so fast!”

Sweetie Belle could feel a familiar tingle. “Oh yes! And I’m not even doing any special exercises! Just regular old stuff everypony knows how to do.”

“I wish I could grow muscle that fast,” said Scootaloo, eying the muscles in her arms and legs. “Working out and stuff. That’s totally unfair!”

A flash of pleasure rocketed down from the base of Sweetie’s horn and pinballed through her body. This feeling was quickly becoming addictive. This feeling of pleasurable growth. Any second now she’d ascend bigger, larger…

“Earth to Sweetie,” Scootaloo poked her in the shoulder.

“Huhn? What?” Sweetie blinked, the feeling of impending growth coiling in her chest like a spring.

“I said I’m heading back to the barn,” Scootaloo raised her eyebrow. “You totally zoned out on me just now.”

Sweetie Belle felt her body tingling. “You go ahead, I’ve got a stomach cramp.”

“...alright,” Scootaloo said, grabbing half the apples. “I’ll see you there? Maybe?”

Scootaloo walked away just as the spell unleashed itself, the unicorn climbing inch after inch, her hips widening, legs and arms swelling with even harder, more defined muscle. Her abs flexed and hardened one by one into firm abdominals befitting any seasoned Wonderbolt. Her back rippled and grew, as did her breasts, each over-stuffed mammary pushing her bra way past its limits. Inches of soft, white titflesh spilled out of every possible direction and the once-snugly fit garment was on the verge of collapse.

Finally a sweaty, built and very aroused six-foot one Sweetie Belle gasped, lustfully clutching her bigger chest. A little more and she would have cum right there where she stood. Sweetie Belle took a moment to admire her larger, even more improved body. She could bring the apples over right now and bask in the admiration and potentially, even more envy from her friends… but Sweetie didn’t feel like explaining the details of her growth as she burst out of her clothes in front of the Apple family and Scootaloo. Careful to tread lightly she turned tail and walked to Carousel Boutique.

New Heights

“AAAND DONE! That’s enough photos today! Let’s wrap it up folks! Sweetie Belle you can change back into your casual wear!”

The photographer, a portly unicorn stallion wearing a blue suit, chic blue scarf and a tasteful red fez packed up his camera. The rest of the crew began removing the lamps they set up for light due to the cloudy weather. A couple Pegasi flew down the road to notify the oversized taxi coach for Sweetie Belle. The two unicorns powering it woke up and set it to motion.

One of the small mares ran up to Sweetie Belle and blushed at the huge mare dis-robing from her leather skirt and matching black leather top. In the evening sunlight her nude muscled figure practically glowed against the dark outcrop of obsidian rock she was posing against. Sweetie Belle thanked the beet-red mare for providing her clothes and slipped on an incredibly short, tight black mini-skirt and proceeded to stuff her beach ball sized breasts into a tasteful patterned red and pink tube top. The last piece of her outfit was a jet-black choker with a jeweled charm of her cutie mark dangling from the front.

In a week Sweetie Belle had grown another several inches to a staggering eight-foot eleven. Her legs rivaled tree trunks, her body oozing raw power and sexuality. Each mammoth breast weighed dozens of pounds and rested upon her chest, both of them perfectly shaped and formed, unaffected by years of sag or gravity. They bounced lightly with each heavy step of her nearly four hundred pound body. The portly stallion tipped his hat towards Sweetie Belle and departed in a flash of light. The other unicorn crew members soon followed.

The last was the blushing unicorn who’d handed off her clothes. A slim, trim little thing who was only five foot tall in her heels. Sweetie Belle paused her stride to caress the tiny mare’s cheek, her thumb pressing against her full lips. The mare responded in kind, opening her mouth to briefly suck on the thick digit, looking up at the amazonian with lustful golden eyes.

“Tonight,” Sweetie Belle promised, the word dripping with sensuality. The unicorn gently bit her thumb and disappeared in a flash of light.

“Where to?” asked the driver, as Sweetie Belle swung her leg into the taxi cab.

“Ponyville,” Sweetie Belle said confidently, settling into the not too spacious cab. She was already out-growing it not even 5 days of using it to get around. Photo Finish was either going to have to get somepony to magically enlarge it or commission a new one.

“What part?”

“Shopping district.”

“We should be there in thirty minutes,” said the driver, horn flaring to life.

The last week had been a whirlwind for the formerly frail little mare. Sweetie Belle had done two photoshoots already, an interview in one of the trendiest fashion mags printing out of Manehatten, a press Q&A that followed her runway debut and now this shoot for the upcoming fall line. Her face and body had dominated the headlines in the city. Everyone wanted a piece of her. Especially once word got out of Sweetie’s newfound fondness of nudity. It felt right to show off her body that everyone wanted to see. She was magnificent.

A bump in the rode broke her train of thought, her horn tearing a hole through the roof fabric of the coach. Sweetie had to laugh.

Once she calmed down her thoughts returned to the mare from before. The small, turquoise coated mare had been her acquaintance the first day on the job. Wardrobe was her role. Satin Stitches was her name. As well as being on Sweetie Belle’s beck and call for whatever she needed. After a couple days of stolen glances, not so subtle comments and lingering touches Sweetie Belle had taken Satin late in the night under the guise of a bathrobe malfunction. They had spent hours together in bed, pleasuring each other in new, sexy ways.

The next night Satin Stitches invited another mare to her room: Curtain Call, another athletic mare who was poised to join Sweetie Belle on Photo Finishes fashion festival. The other was a taller, handsome muscle bound stallion fresh from his workout at a local gym. Sweetie Belle eloped with him as well, sitting atop the strong stallion and nearly crushing his pelvis with the sheer weight and power of Sweetie’s body. And at the same time was able to pleasure the two mares while riding the stallion beneath her.

Sweetie Belle had relished the pleasure of just how easily she could physically and sexually dominate three others at the same time. With just her hands she brought both mares to orgasm. Two fingers up to the knuckle was all she needed. Sweetie had taken the opportunity to goad the stallion pinned beneath her, bragging about her sexual prowess compared to his struggling to satisfy her. The jealousy she felt off him had catapulted her several inches during that sexual escapade and triggered another incredibly powerful bout of orgasms.

It wasn’t a bad week for a young mare’s sexual awakening.

The carriage ride had been less bumpy and Sweetie opened the red curtain of her coach to peer outside. The familiar decorative facade of Carousel Boutique caught her eye.

“Pull up here,” Sweetie Belle ordered right as they passed. The coach screeched to a halt.

Getting out of the carriage was just as difficult as getting in but Sweetie Belle managed it with grace belying her size. Almost immediately she was mobbed by a group of stallions requesting autographs and pictures. Sweetie Belle obliged them one by one, diligently signing everything handed to her as more spectators began to assemble. Most of them just gawked at the formerly tiny mare they knew. About halfway through her signatures a powerful surge of magic flowed through her core and she looked around eagerly for the catalyst. A trio of mares she didn’t recognize were glowering from about forty feet away.

“Laaast one,” Sweetie Belle smiled, and kissed the parchment below her name. The stallion practically squealed as he received the autograph and the envy she felt from afar practically tripled. Sweetie waved the rest of the crowd away and shakily walked her way down the street to Carousel Boutique.

The jealousy flowing through her body was powerful and already she was growing. Inch after inch pumped through her every step. The tube top she had on stretched over her expanding bust, cola can sized nipples stiffening through the thin fabric. Titflesh bulged up through the top to reveal more than a foot of cleavage, and the hem slid up past the top row of her brick-like abs. Her already tiny mini skirt rode up so high the bottom of her ass-cheeks was revealed. Anyone at an average height would be able to look up and see Sweetie’s glistening, dripping pussy winking above them. There had to have been somepony she knew in the crowd seething with jealousy. She hoped it was Diamond Tiara.

Finally at a staggering nine-foot eight, Sweetie Belle crouched slightly to knock on the door of Carousel Boutique.

KNOCK KNOCK RIIIIIP

And her skirt tore vertically from the base of her tail.

The scattered gasps that rose to her ears only served to arouse her further. It wasn’t that big a rip, but it would be useful to have.

“Oh,” Rarity said. Her smile felt plastered onto her face. From the look on Sweetie Belle’s, it was already apparent where this conversation would be going. “Please, come in.”

Sweetie Belle grinned back. “Thanks, Rarity,” she said. She rested a hand on the top of the door-frame and bent down a bit so that she could see Rarity better. “You sure I’ll fit?”

A vein on Rarity’s forehead twitched. “Yes, dear. Come inside.”

“Okay!” Sweetie Belle’s nine-foot-plus figure filled most of the door frame, so it was no surprise when she not only had to bend down even more to fit through, but also sidle through at an odd angle to fit her larger…assets through comfortably.

She grunted as her shoulders rubbed against the top of the door. Rarity’s twitching vein only worsened as she saw Sweetie’s can-sized nipples rubbing against the opposite side of the door frame, each barrel-sized breast bobbing gently as its owner struggled to fit through the too-small door.

Finally, though, Sweetie managed to cram herself into the Boutique, the door thankfully undamaged. She drew herself up to her full, nine-foot-eight, height and gave a happy-sounding sigh. “Wow,” she said, looking around the main room. “This place looks a lot smaller than I remember.”

“Very odd,” Rarity chuckled bitterly. “Are you… here for anything in particular or shall I be retiring upstairs?

“Aw, c’mon Rarity.” Sweetie Belle pouted. Before Rarity knew it, her much-larger sister had taken one gigantic step forward and seized her in a hug. “Don’t I get any time with my ‘big’ sister?”

Rarity’s shoulders almost shook at the added inflection. She shifted her own arms until they were at a less-awkward angle around Sweetie’s muscular leg - a leg which was thicker around than she was - and stiffened a bit when she realized that the light weight on her hair bun was in fact the underside of Sweetie Belle’s bombastic bust.

“Of course, dear,” she said with a grunt, pushing herself forcefully out of Sweetie’s grip. With arms as thick around as cider barrels and a rock-hard set of abs to hold her against, it was clear that Sweetie could have easily held her in place. Yet, thankfully, Rarity was able to struggle her way free from beneath her sister’s amazonian form, though not without getting her hair mussed up and her sewing glasses tilted. “But, ah, perhaps - “

“You don’t look like you’re too happy to see me,” Sweetie Belle said, looking down at her.

Rarity blanched. “O-oh, no! Not at all. I’m simply overjoyed! I just - “

“Feel a little small?”

The vein came back. “Sweetie Belle,” Rarity said. “I’m sure i don’t know what you’re talking about.”

“Oh, it’s fine,” Sweetie Belle said. She glanced around the room for a second, her gaze brightening when she spotted the love-seat. “Aha. Mind if I take a seat?”

Rarity shook her head mutely.

Sweetie took a single, gigantic step over to the love seat, setting her incredible breasts jiggling above Rarity’s head, and slowly sat down. The love seat creaked and protested under her incredible weight; somehow - not surprisingly - she managed to cover both cushions with her muscled, shapely rear.

Sweetie Belle groaned in satisfaction. Her arms lifted over her head and flexed - stretching, of course, but also indubitably showing off. She looked absolutely ridiculous, Rarity thought, her head and back stretching far above the top of the couch and her over-sized hands drooping over the sides. It was clear, though, that Sweetie loved every inch of her big, bulging body, and it seemed that she wasn’t afraid to go even further in showing it off.

Sweetie finished stretching and let her long, thick arms fall to her lap. She caught Rarity’s eye and grinned. “C’mon, sis,” she said. “Come take a seat.”

“Next to you?”

Sweetie’s grin spread even wider, and she shifted her weight a little bit to let the love seat groan a bit more. “Doesn’t look like there’s much room,” she said. “But…”

She patted a hand on her lap, right between her thick, corded thighs - and right beneath the shadow of those big, round breasts.

“Why not right here?”

“I don’t think that’s prudent,” Rarity said, eye’s darting around her shop for other possible chairs to sit in.

“But I want to tell you all about what I’ve been up to this past week since I made it big in Manehatten!” Sweetie Belle practically gloated, whipping her long, mauve curls out of her eyes. “And I’d like to tell you about it while you’re comfortable.”

Sweetie Belle tapped her thighs insistently, her long, strong legs sticking straight along the floor.

“...Fine,” Rarity finally relented, briskly walking over. Rarity felt herself stiffen up as she reached the seat; Sweetie Belle was absolutely filling that seat to beyond capacity. The arm rests were stretching to accommodate that rump. She turned around and braced herself on Sweetie’s muscled leg, hoisting herself up.

“Comfy?” Sweetie Belle said innocently, as her sister shimmied into the slight depression between her legs. Rarity settled against her sister; back pressed up against the rows of hard abs that lined Sweetie’s stomach. Her hands found purchase on the rock-like thighs to her sides. Beneath her rump she could feel a dull heat, and Sweetie’s monumental breasts were just grazing the top of her hair bun. The position cast her in shadow. Rarity felt utterly surrounded by the bulk of her little sister.

“I suppose you could say I’d prefer a chair,” Rarity let her hands fall to her own lap, and became distinctly aware of the rise and fall of Sweetie’s big body as she breathed.

“Do you want to tell me about your week?” Sweetie Belle began, enjoying the warmth in her lap. Enjoying the physical dominance of her body over Raritys. She couldn’t even see her like this but it didn’t matter. In fact that her breasts blocked her view preferable because she could focus on sound and touch.

“I shall,” Rarity felt her body heating up from this close contact, wishing instead of her dress and long-sleeve shirt that she’d opted for something more casual. “I filled several orders but the largest one I unfortunately did not hear back from.”

“The bathing suits?” Sweetie Belle said softly, inspecting her fingernails.

“Yes,” said Rarity, the tone in her voice sharp. “While the stallions seemed to enjoy the suits I had to offer I have not received any further contact from them.”

Sweetie Belle almost laughed. “I did a bathing suit line a few days ago and that got picked up immediately. One-piece, bikinis and some other designs,” she recalled the drooling stares from some of those stallions. “It was very well received!”

A pang of jealousy hit Sweetie Belle like a ton of bricks.

“Well, isn’t THAT just wonderful for you,” Rarity seethed, dabbing the sweat beading her forehead.

“Yesss,” Sweetie Belle hissed, her body trembling with anticipation. “That was my second photo-shoot of the week too. Just did my third today.”

Rarity harrumphed. “I’m sure you’re quite pleased. I remember when Fluttershy picked up a modeling job with Photo Finish years ago. She absolutely loathed it.

“I know,” Sweetie Belle took a couple deep breaths trying to maintain her composure. “She told me all about it once. How much love and attention she got,” she gulped, trying to carefully pick her next words. “And how incredibly envious you were of getting that modeling opportunity and not you.”

“I’m not ashamed to admit that, no. It was a dream I had and didn’t obtain,” Rarity said in a careful monotone.

“I obtained it,” Sweetie Belle goaded, her body tensing.

Rarity didn’t reply. Sweetie Belle felt her sister shift on her lap and another shot of jealousy. It was even stronger than before. She could feel the emotion seeping off her sister.

“Aside from the photo-shoots I had several interviews with popular ponies in fashion,” Sweetie barreled through to the next point. “Manehatten Fab! Seasons and Skirts! Hot Hot Hot!” she felt her pussy starting to slicken. “All those go live next week.”

“Congratulations dear,” Rarity muttered.

“You sound so upset, Rarity,” commented Sweetie Belle, “Aren’t you proud of me rising to this level of success?”

“....I’m… proouud,” said Rarity through clenched teeth, “of you.”

“By next week I’ll be the biggest mare in Equestria,” Sweetie poured on the self-praise, her richer voice dripping with self-satisfaction. “I’m going to be everywhere… which means you don’t need to ever worry about me again!”

“I'll tell Pinkie Pie to throw you a party.”

“Come on, you still sound tense…” Sweetie Belle was trying with every fiber of her being to keep herself under control. “Here, let me help you relax.”

Sweetie Belle brought her big hands to Rarity's backside, massaging her sister through her shirt with her big thumbs. Her fingers were so long they simply rested against the sides of Rarity's breast, just enough to caress the little mounds with every light motion.

“Darling you’re… how do I put this?” Rarity went to move but couldn’t. The grip she was in was too strong. “Touching me.”

“Of course. That's a massage. I’ve been getting free daily body massages as a perk for being such an active model,” Sweetie Belle said nonchalantly, moving her thumbs in small circles.

Rarity flinched at Sweetie Belle’s big fingers pressing into the walls of her breasts, and brushing against her nipples. “That’s! That’s not really what I mean, Sweetie.”

The jealousy seeping off her was already working its way through Sweetie’s body even prior to the massive spurt building within her. As she continued her massage her height began slowly climbing. Already Sweetie had inched up to nine-foot four and she was rising ever higher.

The clothes she had on began to tear at the seams.

“Sweetie! I… think we can wrap this massage up,” Rarity unconsciously arched her back as Sweetie’s finger tips sensually pressed against the front of her breasts.

“Already? But I... wanted to do... something nice... for my little sister,” Sweetie panted, her breath short as the tube top she wore constricted her rising chest.

“I’m not your little sister!” Rarity insisted, her face flushing red.

The envy spell pulsed even stronger within her, and Sweetie felt her pussy wink hard, making Rarity's ass bounce slightly up.

“Oh you are now!” Sweetie Belle gasped and inhaled, the fabric of her tube top tearing loudly and falling to the wayside in big, tattered sheets. Each sixty-pound breast falling into place next to Rarity’s head.

Sweetie Belle moaned, continuing her massage and outright rubbing her sisters cute little breasts now. She looked down at Rarity between the valley of her big breasts and met her sisters eyes with a smug grin. “I’m the big sister now. I’m bigger, better and way more successful than you ever attempted to be. Just admit it!”

“I’m, ah!” Rarity felt her sister’s pussy throbbing beneath her and writhed with unexpected pleasure. Sweetie Belle reached her fingers to the front of Rarity's chest and tore her top clean off, cupping her tits with three fingers each. “I’ve nothing to admit! Sweetie Belle! P-Please!”

The impending orgasm was almost upon Sweetie and she needed more. Wanted more.

“You’re jealous!” Sweetie declared, sliding one hand down to Rarity's crotch and hooking her bottoms out of the way with her index finger. “Just admit it! You’re not proud! Just say it!” she slipped her big finger inside Rarity's tight little pussy.

“Ah-ah ah!” Rarity squirmed and bucked her hips up, helpless to her own heat, arousal and lust. The big finger was so big, warm and tight. It was like being rutted by a stallion. “YES! ALRIGHT I ADMIT IT! I’M JEALOUS!”

The nine-foot nine mare moaned and seized up. After ten minutes of fighting to stay up the loveseat’s legs gave out, the seven hundred plus and growing weight too much to bear, falling to the floor with a bang. The wooden sides of the seat went immediately after, succumbing to the widening hips they had bravely tried to contain.

“I’M JEALOUS THAT YOU GOT A JOB WITH PHOTO FINISH WHEN I NEVER COULD! I’M JEALOUS THAT MY SUITS DIDN’T FALL THROUGH AND YOURS DID! I’M JEALOUS THAT BY NEXT WEEK IT’S GOING TO BE YOU THAT’S ON EVERY BILLBOARD, EVERY STORE, AND NOT ME!! I’M JEALOUS YOU GREW TO BE TWICE THE SIZE OF DAMNED CELESTIA IN A WEEK!” Rarity screamed, her cunt spasming over the increasing length and girth of Sweetie’s finger, now plunged up the the knuckle and thoroughly filling her up. “I ADMIT IT!”

It was like a bomb went off in Sweetie Belle’s body as she came. She simply exploded in mass and size, her body leaping towards the ceiling entire feet at a time as the accumulated jealousy from Rarity fed incredible amounts of energy into the spell. Ten feet, eleven feet, twelve. Hundreds of pounds of titflesh swelled on her chest, the size of them growing comparable to boulders. Her veins pumped blood into the fresh muscle rippling across her already powerful body. Thirteen feet, fourteen feet, fifteen.

Rarity came too from the impossibly large finger swelling inside her soaking wet pussy, the digit slipping out from the gush of her orgasm and the spray of fluids erupting from her sisters growing, orgasming pussy beneath her, soaking her rump and legs with hot sticky juice. It was too much to bear. Rarity slipped between Sweetie’s opening legs and fell to the floor in a wet, warm puddle, the squelching of her big sister fingering herself lewdly right behind her head.

At a staggering sixteen foot, five inches the deluge of Sweetie Belle’s orgasm finally ceased. Her horn had caught the lamp lighting the room and her gigantic ass had bowled over many racks of clothes. She stretched her gigantic pillars of legs out and braced her trampoline sized hooves against the wall by the front of the shop, resting her mountain of a back against the wall opposite. At this size she unapologetically filled Carousel Boutique, and anyone walking through the front door would be greeted by the hallway created by her sequoia-thick legs.

“Ahhh…” Sweetie Belle marveled at her giant, powerful body. She was officially the biggest thing in Equestria as far as she was concerned, and nobody would refute her now. Photo Finish was going to love this. What better way to advertise fashion than on the biggest, sexiest model alive? She was like a walking statue carved from marble.

“Uhhhnn,” came a moan from somewhere between her legs. Sweetie Belle’s horn buzzed to life and grabbed her little sister.

“Oh Rarity,” giggled Sweetie Belle, the fashionista a total, soaking wet naked mess. Sweetie curled her arm around her massive boulder sized breasts and dropped Rarity into the warm cushion of her cleavage. “Don’t you feel better for being honest and letting that all out?”

Rarity lolled her head around and moaned again, dazed from her orgasm and the events that just transpired.

“Thank you for helping me become the mare I am now.” Sweetie boomed, her amplified voice loud as a megaphone. “I really, really appreciate it. You’re the best little sister a girl could ask for.”

A devious smirk crossed Sweetie Belle’s face.

“And I’ll be sure to credit you in my next big interview in Canterlot.”

Rarity was too exhausted to do anything but watch as her smug big sister started growing even bigger before her eyes.

The Envy of Equestria

“Wow… Manehatten,” Applebloom said in awe. “This place is huge! No wonder Sweetie Belle is moving here,”

“I heard Las Pegasus was bigger,” said Scootaloo, sidling up next to her as they both stepped out of the train station doorway. It was a breezy sunny day in the city and there was just enough chill in the wind that they were both wearing light jackets. Huge skyscrapers dotted the landscape and throngs of ponies were traveling the street in front of them like fish packed into a small pond. It was in stark comparison to their quiet little town. The evening sun cast warm orange reflections against the high rise glass windows of the buildings directly in front of them.

“So where is her new place anyhow?” Scootaloo asked, watching as Applebloom pulled out the letter Sweetie had written them a few days ago.

“Y’all are asking the wrong pony,” Applebloom scoured the letter. “That’s strange, ah don’t see the address on here. It just says she misses us and we’re invited to come visit with the time and date.”

Scootaloo facepalmed. “Tell me you didn’t throw out the envelope that would HAVE her address on it.”

Applebloom blinked and chuckled nervously. “Ehehe... Uhhh.”

“Seriously?!”

“Well sorry!” Applebloom shrugged. “It’s not like ah completely forgot though! She lives on Equestrian Way!”

“That totally leaves out the building and room number!” Scootaloo said, swiveling her head around to look for landmarks. “Who knows how big this street is anyway! For all we know it could bisect the whole city!”

Applebloom took a few steps forwards and sighed, looking around. She froze at the sight of a large billboard.

“Well, if Sweetie’s gotten this big already,” Applebloom motioned for Scootaloo to come over, pointing up. “I’m sure somepony is gonna know where we could find her.”

Erected proudly over a huge, flat-top building was an enormous billboard depicting Sweetie Belle laying on her side in a very seductive pose with a bouquet of red roses clenched between her teeth. She was wearing a very risque red dress and staring at the viewer with seductive bottle-green eyes. The text in the bottom left corner read ‘FIRENZIA’ with a smaller shot of pantiehose and red lingerie.

“Wow,” they gawked up at the billboard. A camera flash went off next to them capping the advertisement as well.

“Does she look like… strong to you?” Scootaloo said softly. “Like the last time I actually saw her she looked fit but like… I heard she was super buff.”

“Kinda,” Applebloom commented, noting the one arm of Sweetie’s that was visible in the ad. “Ah heard the same thing but only really saw her face in the Ponyville Press. And that wasn’t even a good photo.”

“I heard she was naked outside Canterlot Boutique,” Scootaloo said, noticing other smaller advertisements around her now.

A nearby magazine rack had a stack of new unopened fashion magazines, tightly bound with string, laying on the ground. Sweetie Belle’s face creased the cover with the tagline ‘Big and Beautiful’ across the bottom.

“She’s really hit it big that’s for sure,” commented Applebloom, looking around as she and Scootaloo walked down the street. They hadn’t noticed it at first but Sweetie was everywhere around them. On billboards in sexy poses, atop taxi carraiges with just her sultry, smiling face, in windows on posters. A radio sitting atop a milk crate enthusiastically announced an exclusive interview with Sweetie tonight at ten.

One large skyscraper on the corner had spotlights being installed at the entrance. The worn out carpeting in the front was being replaced by a different work crew and there was a small crowd of ponies milling about out front. A stallion was roping up bouquets of flowers and sticking them on a cart usually reserved for luggage. Four buff stallions stood at the entrance to the building chatting amongst themselves.

“I bet she’s up there,” Scootaloo said, craning up to look.

“What makes you think so?” asked Applebloom pensively.

“Besides all the hubbub down here and the small herd of Pegasi with cameras up there,” Scootaloo pointed into the air. There looked like a bunch of indistinct pony shapes way up there but it was too far to make out.

“Can’t see ‘em.” said Applebloom.

“I can see them,” Scootaloo said, the eagle eye Pegasus straining her eyes. “All of them with cameras. C’mon, let’s go inside.”

Not two steps into the luxurious lobby a beefy stallion in a suit had stopped them in their tracks.

“I don’t see your resident pass,” he said gruffly, eying them through dark sunglasses. “What business do you two have here?”

“We’re here to visit out friend, Sweetie Belle,” said Scootaloo. “She invited us!”

“Miss Belle is not seeing fans today,” the stallion continued tersely. “I’m going to have to ask you to leave.”

“Hold on!” A small mauve stallion waved a large piece of parchment from behind the tellers desk. “Those two can go up. Let them through, Chump Change, I have their appointment and matching descriptions here from Sweetie Belle.”

Applebloom and Scootaloo waved back and shot Chump Change a look.

“Apologies. I had instructions and those were for privacy today,” the big stallion stepped aside. Scootaloo harrumphed and strode to the elevator with Applebloom right beside her.

DING

DING

DING

The dial above the steel doors ticked off the floors one by one on its way up. It was a big, old, elevator with polished brass furnishings, red cushiony seats and dimly lit gold buttons. Everything about this place screamed money.

“Is Sweetie Belle a millionaire?” wondered Scootaloo aloud.

“If she’s got digs like this ah can only assume,” Applebloom studied her mirrored reflection in the brass elevator walls. “You saw her outside practically everywhere which means she’s famous. Getting money usually follows that.

DING

The door opened and a quartet of fancily dressed stallions chattering amongst themselves. They stopped their discussion at the sight of the two mares and quietly piled inside. Applebloom and Scootaloo sidled out of the way into the dimly lit hallway. Scootaloo noticed all the stallions were sweating heavily; one of them was desperately fanning his face with a thick magazine. As the the doors closed behind them she realized it was one with Sweetie Belle’s face on the cover.

“Is this the penthouse?” asked Applebloom, looking around in confusion.

“It has to be. This is the floor with her cutie mark next to the button,” Scootaloo said confidently, looking around. “It looks like there’s been a lot of construction and stuff done here.”

There were large slats of wood and carpet rolled off to their left in front of what looked like a freight elevator. Piles of nails, construction tools and boards littered the ground to their right. The air held a faint smell of sawdust.

It was also quite warm.

“Think ah understand why them stallions all looked so sweaty,” commented Applebloom, wiping her forehead where sweat was already starting to bead. “It’s really stuffy up here.”

“Tell me about it,” Scootaloo pulled at her collar. “I guess the windows are shut to keep out those snooping pegasi.

They walked down the hallway that was opposite the elevator. It was long and dimly lit. The temperature only increased as they ventured forth. Applebloom opened up both buttons on her collared shirt just for any room to breathe.

Finally the pair met some double doors with a large shield emblazoned on the front. A few paint buckets and brushes were off to the side on a small cart with wheels. Cautiously, the two pushed against the door and stepped inside.

“Whoa…” they gasped.

The room was huge! It looked like multiple floors were ripped out to increase the ceiling height all the way up to the penthouse. There were small frosted barely lit sconces to the left and right dotting the walls similar to a theater. Large metal fans in the corners of the room were swiveling with a dull whine and circulating the hot air. It was like stepping into a gigantic sauna.

“Ah feel like I’m outside on a hot summer day,” Applebloom balked. She could feel herself actively sweating now.

“Tell me about it,” Scootaloo said, extending her wings. “I feel like I just finished a marathon…”

“Is she here? It’s really dark,” continued Scootaloo, gazing around the dimly lit room. Aside from the rim-light from the blocked off windows the only light source was the small wall lamps. “HELLO!? SWEETIE BELLE!”

A bright green light erupted from above in the far side of the room.

“OH! Sorry girls! Didn’t hear you come in!” boomed a familiar, albeit deeper voice.

The previously poorly lit sconces flared green and then erupted with warm yellow light. In seconds the practically pitch black room was fully illuminated and the two mares winced from the change in brightness. After their eyes adjusted they got a better look at the room.

It was lightly furnished with a large, empty space in the middle. To the right of them were a couple huge wooden racks with metal hangers twisted to make giant coat hangers, each one holding a different giant sized outfit ranging from long dresses to short shirts and skirts. The large drawer next to it had a chestnut colored brassiere dangling from the knob. Next to that was what looked like a miniature water tower with a huge brushed steel bucket next to it.

The left side of the room was sparsely decorated and obviously still under construction. There were three giant silver containers with a magical cooling unit attached as well. Droplets of water condensation were dripping onto the floor right below it.

And at the far wall, reclining on a gigantic plush purple cushion was Sweetie Belle.

“I’m glad you made it! It’s so nice to see you girls again!” she said, her arm propping up her head.

The two girls just stared. Their little friend was a giantess. An enormous, breathtakingly beautiful specimen of a mare. Her body took up nearly half the length of the wall and her fluffy tail filled out the rest of the space. The outfit she had one was a flashy blue diamond that constrated with her white coat and was so revealing that every inch of her big, powerful body was on full display. Each arm looked like it was bulging with corded muscle, her legs like stone cut marble. Both breasts were akin to small hills resting atop one anotherm and were very very big in proportion to her body.

“Cat got your tongue?” Sweetie Belle said softly, swinging her pillar thick legs over and standing up from her seat. The floor shook as she walked over, and her two diminutive friends just stared up at her in sheer awe. Rooted to the spot like their hooves were in cement.

“How… Sweetie?” The titan of a mare stopped until she was right in front of them. Scootaloo gulped, still craning up at her. From this vantage point all she could see was the dark panties she had on beneath her skirt and the undersides of her massive breasts.

“How big are you?” Applebloom echoed, her jaw hanging open.

“I’m exactly thirty feet tall,” Sweetie Belle said proudly, bending over a little to look down at her friends properly. “Since everyone asks, I weigh thirteen tons and each of my breasts is about a little over half a ton each. The floor of this building has been magically reinforced to support my weight and I get in and out of here by teleporting to a spot near the entrance. Anything I missed?”

Applebloom remained speechless. Her friend was thirty feet tall. Applebloom didn’t even reach her knees. She was about eye level with her massive friends shins. If she wanted to she could take a comfortable seat on Sweetie Belle’s hoof, which was rounder than the biggest apple tree stump she ever saw.

Sweat was pouring off their bodies now. No wonder the room was so hot. Sweetie Belle’s big body was emanating an incredible amount of heat. It was almost like standing in front of an oven while it was turned on. Big droplets of water were splashing to the ground around them and they realized Sweetie was also dripping with sweat -the whole room carried her strong scent. Vaguely aromatic with a hint of perfume.

“HOW DID YOU GET SO BIG!?” Scootaloo shouted, her wings flapping to start a breeze.

“You don’t have to shout,” Sweetie Belle grinned. “I’ve got big ears, I can hear you just fine. But you have to excuse me if I’m loud. That I can’t help anymore.”

“Sorry.”

“It’s okay!” Sweetie Belle said with a smile. “I’ve got some explaining to do. But it’s got to be our secret! I haven’t told anyone else.

With the determined nod of her friends Sweetie Belle explained everything from the top. How she felt at the start. Meeting with Spike. Casting a weird spell on herself. The triggers of envy. Meeting Photo Finish. Erupting in height thanks to her sister. Modeling in Manehatten and all the contracts, advertising and deals she’s made that catapulted her to the top.

“And that’s that,” finished Sweetie Belle, her recap finished. “The spell either wore off or hit its limit because I stopped growing. I’m sorry I missed you girls for a couple weeks too. That was wrong of me. I wasn’t purposefully dodging you but I got famous so quick. Now I’m the biggest star in Manehatten. Literally. Once I do a few more gigs and start my fashion tour this fall I’ll be the biggest thing in Equestria! Also literally.”

“I thought it was a little weird that you were bigger when we were apple picking,” Scootaloo said, fanning herself with her wings.

“My neck hurts,” Applebloom replied, looking away from Sweetie Belle for a second to rub it.

Sweetie Belle laughed, her booming amplified voice like a pumped up concert speaker. Both her friends covered her ears.

“Sorry!” Sweetie Belle covered her mouth. “I hear my neck hurts a lot these days.”

“It’s alright,” Scootaloo said, still covering her ears. “So are you sure you aren’t, still growing?”

Sweetie Belle shook her head.

“Oh! I think that’s good?”

“Yeah,” Sweetie Belle flexed her massive arm, the thick bicep bulging up to meet her. “I’m huge, but any bigger than this might have been too much for Equestria to deal with. My food bills alone are insane! If I was twice my size I’d have to eat an entire orchard a day just for lunch!”

“But the spell does seems to have run its course,” Sweetie Belle sighed, her arm dropping to her side. “It did boost my own magic though! I can teleport no problem now! I even learned a spell that temporarily makes me smaller!”

Sweetie’s horn burst to life again and bright green streams of magic coiled around her body like a giant cocoon. Scootaloo and Applebloom watched in amazement as their friends form descended, shrinking smaller and smaller until it burst in a shower of sparkles.

In a few seconds their giantess friend had cut herself down to more than half her size.

It also left her totally naked.

“Oh, it uh, worked!” Scootaloo said gingerly, her eyes unable to tear themselves away at her friend.

“Hmm, I still can’t get down to below fourteen,” Sweetie Belle casually inspected her body, hands roaming down her washboard abs and across her muscular nude figure. She fondled her hefty breasts and was satisfied with her appearance. “I can usually get to just below half as big if I push myself.”

Applebloom was blushing madly, unsure of what to say or do. The giantesses oversized outfit was pooled around her hooves and while certainly smaller, Applebloom was still intimidated by her friends form. It also didn’t help that she was now eye level with her best friends' pussy.

“Do y’all have uh… normal-ish sized clothes?” asked Applebloom pensively.

“No,” Sweetie Belle said casually, planting her hands on her hips and thrusting out her chest. “My shrinking spell doesn’t put me at a consistent height every time and it doesn’t last for very long. All my ‘regular’ clothes are made of stretchy materials, currently at the laundromat. Photo Finish doesn’t make me those kinds of outfits anyway. Only my normal size ones are her designs.”

“You’re totally naked right now Sweetie Belle,” Scootaloo finally said, peering through her wing feathers.

“I know,” replied Sweetie with a shrug. “I can’t do anything about it girls. No clothes. So I’m going to be nude. Besides, until an airflow unit big enough is installed in this building my room is going to be crazy hot. It’s more comfortable to not wear clothes.”

“I think you just like being naked,” snorted Applebloom.

Sweetie Belle played with her long styled mane, making no effort to obscure herself. “What if I do? My body is so sexy. I don’t want to hide it and I’m not going to. You two have to embrace who I am now… and who I am is very big and frequently nude.”

Her friends said nothing. Sweetie Belle bit her lip after a silent seven seconds and tapped her manhole sized hoof on the carpeted floor with heavy thumps.

“Come on you too. Just... look at me. Please? There’s really not much I can do about all of me… I actually feel... weird that you aren’t dying to look at me considering everypony else outside does.”

The two small mares sighed together and looked up at the alabaster unicorn. It still felt weird to be looking at this sexy amazonian powerhouse that was their friend. But they were slowly getting over it the more they got a look at her. Every aspect of her exuded power and sexuality, both feminine and masculine, and her cute, slender face and fluffy hair helped accentuate her bulging features as well.

Scootaloo noticed something else.

“Did… are you making milk?!” Scootaloo said incredulously, pointing to her engorged breasts.

“Hm, oh yes!” Sweetie Belle gave her breasts a firm squeeze. Two strong jets of milky white spurted out and sailed above their heads. “Did you know there’s a spell to induce lactation? I cast it on myself as part of a charity donation thing for mothers in the hospital! I’ve been filling up those three tanks corner for the past couple days.”

“It’s also kind of fun,” Sweetie laughed, tugging her dark nipple and squirting more fluid onto the floor.

KNOCK KNOCK

“Come in!” Sweetie Belle said excitedly, letting go of her breasts with a heavy slap.

Three ponies walked through the door. A very short petite earth mare, Satin Sheets, a tall, athletic pegasus mare and a large muscular unicorn stallion all began to strut up to Sweetie Belle with confidence.

“I’m sorry girls. I should have mentioned to you earlier I’m on a tight schedule and I have a radio interview in a couple hours,” Sweetie Belle magically floated over a large blue cushion and settled down into it, spreading her legs wide. “I needed to squeeze in some me time before I headed that up.”

The big orange stallion acknowledged the two stunned crusaders and unzipped his pants, letting them fall to the floor to reveal his large, rapidly hardening erection. He walked over to Sweetie Belle’s dripping entrance and easily glided inside. Sweetie Belle squealed happily and clenched her fingers.

“Ah! Ooh! I can meet you girls later in the evening after my interVIEW! Ah! Is overrr,” Sweetie Belle flinched and gasped, massaging her leaky breasts. “Or if you want… stay here with me and fool around? Just for FUH-Funnnn!”

Sweetie Belle tossed her head back and moaned, running her long fingers through her mane as the stallion began eagerly thrusting into her.

“Miss Sweetie Belle doesn’t often have time for these, uhm, situations,” said the petite mare, who was eagerly undressing next to them. “So she has to make do where she can.”

“One second Sweetie!” Scootaloo shouted, unsure if the moaning mare could even hear them. The orange pegasus pulled Applebloom a few steps back from the unfolding orgy. Once they were sure they were in the clear they began to discuss what to do.

“What do you think Scoot? For the life of me ah did NOT expect this to happen,” gestured Applebloom, as the pegasus flew over to Sweetie’s breast and began playing with her fat nipple.

“I… I dunno. I mean like. I’m really hot, I’m sweating like an animal and…” Scootaloo bit her lip. “Sweetie Belle is really sexy now.”

Applebloom gasped.

“What? She’s right! I was only looking through my feathers because I wasn’t sure if she’d be embarrassed without her clothes on,” Scootaloo continued, the sounds of the sex scene behind them intensifying. “Just because we’ve known for years doesn’t make her not attractive now!”

They both turned to watch the unfolding orgy. The stallion was ramming into Sweetie’s pussy at a steady pace, drawing countless squeals and moans of pleasure from the over-sized mare. The fit mare was still fondling Sweetie’s massive breasts, her own smaller tits squished against Sweetie’s large, firm one. The petite Satin Sheets was sharing a deep, heated kiss with Sweetie, who had two of her large fingers shoved deep inside the tiny mare’s wet snatch.

“Wow… she’s certainly uh… skilled at multitasking, right Scoot… Scoot? Whoa!”

Scootaloo had stripped her sweat-soaked top off and tossed it into a ball on the floor by her hooves, her nipples standing at attention and achingly hard in the warm air. Quick as a flash she’d pulled her bottoms off and kicked them off to the side. She ran her fingers through her short mane, exhaled, then glanced at Appleblooms bewildered expression.

“It’s whatever. We’re still best friends. She's still Sweetie Belle on the inside so like... I don’t mind being best friends with benefits,” shrugged Scootaloo, her shapely breasts jiggling on her chest in the open air. “So I’m taking up Sweetie’s offer.”

Applebloom was too flabbergasted to muster a retort. Soon as Scootaloo finished her sentence the lanky mare flew over to Sweetie Belle’s face. They spoke briefly, and in seconds the amazonian unicorn was eating out Scootaloo’s little pussy. The orange pegasus arched her back and grabbed onto Sweetie’s long horn. It was an incredibly erotic sight.

After a minute or so of heavy licking, Sweetie Belle cracked one eye open to look at Applebloom standing there playing with her fingers. The big mare lifted her free hand up and motioned with her finger to walk over.

“...aw horseapples. Screw it,” Applebloom pulled her collared shirt over her head and unhooked her bra, letting her clothes slip to the floor. She sashayed towards Sweetie Belle, heavy D-cup breasts swaying with each step towards her the massive mare.

Sweetie Belle could only grin through her fervent lickings as her sexy little friend walked over to her outstretched hand. She had it all: Fame, fortune, fashion dominance and now she not only managed to retain her friendships, but even expanded upon it with little resistance. A splash of hot juices warmed her big tongue as the pegasus on her face convulsed in orgasm. Sweetie Belle licked her lips and magically pulled Scootaloo off her muzzle, giving her a strong kiss before settling the sexually charged mare on her abs. With her fingers wrapped around Appleblooms thick torso she lifted the small apple mare up to her face.

“What’s up Applebloom? You look nervous.” said Sweetie Belle, noting Appleblooms wide-eyed face and crossed legs.

“Ah-Ah…” Applebloom squeezed one of Sweetie’s massive fingers, and wriggled softly in her grip. “Ah’ve never just felt like… y’know, being picked up before.”

Sweetie Belle gently caressed Appleblooms breasts with her thumb. “Don’t be nervous. Whatever you feel like now, you’re going to forget it,” She brought the small mare close and kissed her softly on the lips, holding her there for several seconds. Appleblooms little hand fell to her cheek and she returned the kiss in kind.

“Wow,” Applebloom panted as they broke the kiss. “Wow,” she repeated, wiping the thing strand of saliva from her lips.

Sweetie Belle chuckled softly. “I have that effect on everyone. I’m just glad I could share it with you and Scoots.”

They kissed again, and Appleblooms voice joined the chorus of pleasured cries in the supermodel mare’s big spacious room.

Author's Note

And that's the end! I hope you enjoyed Envy is Magic! One of my favorite aspects of growth stories is when the trigger is unique and that's how this fic was started conceptually. Feeling envious is the worst feeling, and causing it feels great. It'd be a bit too easy to have the trigger work the way Sweetie Belle first expected it, and I really enjoyed writing the dialogue and scenes where she's goading others. The hardest was actually writing her goading the other two, because even under such a spell I don't think Sweetie would be mean about it. I'm pretty happy with how it continued past that.

Thanks for reading!

Going Up In the World

Sweetie Belle spun around in front of the mirror, giggling to herself. About two or so hours ago she had rushed upstairs to her room in Carousel Boutique and locked the door, immediately jumping into her bed and spending that time furiously masturbating. It felt so good to have big, soft breasts to squeeze, to have big, sensitive nipples to twist and pull that it was almost like discovering masturbation for the first time.

Once she had satisfied herself, Sweetie ran a warm bath to shampoo and clean herself up from the earlier laborious task she’d participated in. Now she had thrown on her silk pajama button up top and bottom and they were so ill-fitting it was comical. The former loose pants looked painted on, the ends of them stretched to fit around her calves as tightly as the waistband was around her hips. Three of the buttons on the front had popped off dramatically the minute she exhaled after a short battle of putting them on, revealing her large, creamy white breasts. Each sleeve was tighter than tight on her arms. To think a thirteen inches made this much difference.

Sweetie had also intended to wear her sisters bra but that was no longer possible, as her new EE cups outmatched her sisters DD.

The sound of hoofalls thumping up the stairs caught Sweetie’s ear as she was slipping out of her busted nightwear.

“Sweetie Belle!” Rarity's airy voice rang out, “You need to lock the door when you’re here and I’m absent. Anypony can just waltz right in.”

Sweetie Belle smacked her forehead. So much for subtlety.

“I’m just stopping in to for a snack before I head back out,” she continued, her hoofsteps idly clopping into the kitchenette.

“Okay!” Sweetie replied, looking around her room for clothes. She couldn’t rummage through Rarity’s things now as she intended so she had to make do with her own. That and she had no bras in this place to fit her unless she ran downstairs to raid the lingerie rack (also out of the question). Sweetie Belle settled on pulling over a black patterned V-neck shirt with colorful triangles on it.. It stretched across her bigger, broader chest so dramatically the word was nigh unreadable, the hem resting midway up her abs. At least it contained her big breasts.

Sweetie slipped on the blue pair of brightly colored shorts and winced at how tight it was. Not only did it fail to reach her hips (revealing the top of her muscular ass) but it also outline every juicy contour that a well fitting pair of shorts would hide. Nothing was left to imagination.

But she didn’t really care. What she cared about was showing off her new body to her sister. Seeing how she’d react. Sweetie opened her bedroom door and walked into the kitchen.

“I hope you can excuse me for doing a grab and go, so to speak, but I haven’t much time to meet with this client tonite so I cannot chit-chat,” Rarity was dressed in a black pencil skirt with a white top, her red bathing suit quite visible beneath the fabric. She was busily digging through her fancy purse to put away the granola bars.

Sweetie Belle stood in the doorway, not yet noticed. But she would be. Sweetie walked over, hooves clacking against the white tile. “Well… if you can’t fit them all in your purse I’ll have one right now. I’m really hungry.”

Rarity glanced at Sweetie for a split second and continued organizing her purse. “Darling, what did I tell you about wearing my heels. They don’t fit your hooves. You’re going to lose your balance and fall. Come now, slip them off.”

“I’m not wearing heels,” Sweetie Belle said innocently, standing straight.

“Don’t be ridicu-” began Rarity, biting her tongue and looking at Sweetie Belle. Really looking at her. UP at her about an inch. Then down. The cute, smiling face, the enlarged bosom, the firm midsection all the way down to… her rather large, sturdy hooves.

“What’s this?” Rarity did a double-take, and then magically unlatched the straps to her heels. She stepped out and descended three inches, her eyes now level with her younger sisters clavicle.

“I had a growth spurt!” Sweetie Belle said, absolutely relishing that she could look down at her formerly big sister in and out of heels. “I’m taller than you are!”

“Not just taller,” Rarity said, a hint of shock in her voice as her eyes traveled over Sweetie’s bust and muscles. “I’ve never heard of such a growth spurt. You’re a foot taller than me AND stronger to boot?”

“Sexier too,” teased Sweetie Belle, reaching her hands to caress her big breasts. “Oh, I tried borrowing one of your brassiere’s but the cups simply can’t contain my fruitful new bosom.” She said, imitating Rarity’s tone and inflection.

“Well now,” Rarity’s face turned scarlet, realizing the latter was obviously true. “I would have LIKE to offer you some of my outdated clothes to borrow were you able to fit but clearly you are-”

“A cut above your body,” Sweetie Belle finished, right as a powerful stab of pleasure drilled into her skull. “Just a little more,” she bit her lip, nipples hardening through her T-shirt.

“Hmph,” Rarity was already strapping back into her shoes and shouldering her purse. “Maybe when you adjust your attitude I might help you with your rather dismal clothing situation. I have to be off. Good-bye!”

Rarity stormed off and down the stairs muttering additional misgivings but Sweetie Belle didn’t care. That fierce shot of envy was building into her core so strongly that Sweetie had doubled over from the sheer amount of power it was preparing to unleash.

“OHHHHHH YEESSS” Sweetie Belle hissed as the magic exploded within her body. The inches flew by as Sweetie lurched up six-foot three in one powerful surge. The EE cup breasts in her shirt ballooned two sizes and tore their way out in a phenomenal display of mounting fertility. Her abs hardened further, the already dense muscle rippling with newfound strength, and her elastic shorts stretched into no more than feeble panties as her hips widened and her thighs bulged their way into a size that rivaled the Princesses themselves. Her arms flung out and she flexed them, hard balls of muscle the size of oranges swelling up and steadily growing larger and larger.

“YES!” Sweetie Belle grasped at her breasts, going bow legged right again at the verge of orgasm. She brought one of her fat nipple to her mouth and suckled, another finger caressing her spasming pussy to bring her over that edge into her seventh orgasm of the day. She bucked the air, moaning with delight into her dark nipple as her juices splashed out onto the floor.

A bigger, buffer, worn out Sweetie Belle breathed a sigh of relief when it finally ended, and all six-foot eight of her collapsed into the kitchen chair, the pegs creaking under her weight. That was the single biggest spurt yet. And with only a few seconds of teasing. Sweetie tore off the remains of her shirt and tossed it to the floor. What she needed was to be bigger. The biggest, buffest, sexiest mare in this entire country. If she could get to Rarity again sure, but now she was gone and there wasn’t anyone in mind to coerce jealousy from.

The sun was going down and Sweetie Belle felt the urge to go for a walk and show off her new body. At this height she would be impossible to miss. She stretched, absolutely loving that her fingers were borderline touching the ceiling of the small kitchenette and casually strolled downstairs to help herself to whatever was on display.

About 20 minutes later Sweetie Belle hit the streets. Some light browsing downstairs found her not many fitting designs, but there were a few exceptional pieces that were created for taller mares. Sweetie was wearing a strapless little black dress with a swooping neckline that her mountainous white cleavage was practically bursting out of. The stretchy choker around her neck accentuated her upper body wonderfully and brought an extra bit of sensuality to the garment. The back of the dress was open and exposed her rippling muscles all the way down to the base of her tail. Whenever she turned her head of course, as her long hair fell to mid-back.

Her flared hips ate up the rest of the space leaving the bottom half of her cutie marks exposed to juuust the upper thigh. Anyone who was looking would be able to catch a glimpse of her jet-black panties. None of the heels fit but Sweetie was both tall enough where it didn’t matter and had also painted her smooth white hooves jet black to complement her dress. She looked like a powerful amazon on the way to the Gala.

Sweetie was garning no short of attention, between the catcalls and long, quiet stares from mares and then receiving lustful glances from stallions and brief, hot flashes of envy from the mares they were accompanying on dates. Each one was a brief kiss to the base of her skull and while at first the extra centimeter here and there felt nice she didn’t want to burst out of her dress in public.

At least not yet.

Sweetie Belle caught her upper body in a window and had to laugh. No wonder she was getting more attention as the night went on. Her dark areola was peeking out a little from her dress. Not only that but both her nipples were stiff and at attention thanks to the jealous mares about. Any bigger and she’d be stuffing these big breasts into a dress that could no longer hope to contain them. She wiggled her tush at a stallion who she just noticed was gawking at her from an outdoor table and sashayed back towards the Boutique.

Two blocks away on a more secluded side street she stopped yet again to admire herself in a larger window. At this point she had to stuff her breasts down. They had both flopped out.

“Excuse! Miss! One moment please!” a heavily accented voice called out.

Sweetie wheeled around and looked down to see Photo Finish running up to you.

“Please… I, PHOTO FINISH, must be speaking to you,” panted the shorter mare, putting up her index finger as she caught her breath. “Another… moment. If you can spare.”

Sweetie Belle placed one hand on her hip and thrust her muscled leg out. She wondered if Photo Finish would recognize her as the same scrawny sprout from a few days ago.

“Excuse me once more, you have much longer stride,” Photo Finish pulled out her camera and snapped two pictures of Sweetie Belle. “Wonderful natural pose! Did not even find need to ask!”

“Hey!” Sweetie Belle crossed her arms and raised an eyebrow, only to be inundated with more flashes. “Alright, what do you want Miss Finish?”

“You! Modeling for ME!” Photo Finish pulled a folded up sheet from within her vest and unraveled it. “Bulimic. OUT! Buff, is in!” She stabbed at a sketch of an athletic mare posing in a very wild looking outfit. “You miss, are the PERRRFECT example of the kind of body I want wearing my new line of outfits! Big! Brawny! Beautiful! Busty! You are perfection incarnate!”

Sweetie Belle practically melted at the pitch. This was never quite her dream but here was a golden ticket being handed on a silver platter. A ticket she KNEW her sister had chased years ago.

“In weeks I will have you strutting your stuff everywhere!” Photo Finish drawled on, continuing to woo the six-foot ten mare in front of her. “Every billboard, every magazine! You will be the shining spearhead of next big fashion and body trend!” A quill was suddenly in Sweetie’s hand, as was a written contract.

“I already sign earlier. You just scribe and we begin tomorrow!”

Sweetie Belle pressed the quill tip to the page. “No backsies?”

“Is binding on both ends. I shan’t not be able to drop you,” said Photo Finish, spinning around and motioning to her back. “Sign!”

One hastily scrawled signature later and Sweetie Belle was the next big thing in fashion.

“Magnificent!” said Photo Finish, wheeling around and stuffing the contract into her purse. “I meet with in the morning. Here! This pastry shop!” She pointed to the store next to her. “Now! I go!”

And just like that she had zipped away, her blue mane whipping behind her as she turned the corner. Nearly bumping into a couple of mares who had been standing at a distance watching her.

“What the heck was that about?” said Diamond Tiara in a huff. “Was she talking to who I think that it?”

Silver Spoon cleaned her glasses and put them on. “I think that’s… Sweetie Belle?” she said slowly. The sun had gone down and it was hard to see.

“Let’s go Silver,” commanded Diamond Tiara, rushing over.

Sweetie Belle stood there lost in the fantasy of her bountiful future. She was going to be a famous model. THE famous model of an upcoming fashion age spearheaded by a legend.

“Hey! Sweetie! What the hay was THAT about with Photo Finish? Why would she be talking to you….” Diamond Tiara slowed her roll, eyes catching up to the new, amazonian Sweetie Belle. “What happened to you?”

“Oh me?” Sweetie Belle snapped out of her fantasy. “I had an insane growth spurt and now I’m bigger and bustier than you two total jerks could ever be.”

“Wha-” Diamond Tiara seethed, “Excuse yourself! You’re just a… a-”

“I just signed a deal with Photo Finish to become Equestrias next top model,” Sweetie Belle pretended to inspect her fingernails for dirt. “I’m going to be the biggest thing in Equestria.”

“Bull!” interjected Silver Spoon. “There’s no way she’d sign somebody that... Looks like you! Because models don’t look like that!”

“Well, you’re not exactly the expert on looking at things are you, four-eyes,” Sweetie Belle goaded, planting her hands against her hips. “Bulimic is out, buff is in. And you two string-beans don’t amount to anything in the eyes of Photo Finish. That’s why I just got signed to a major modeling contract and SHE just walked past you two like a couple of nobodies.”

Diamond Tiara scowled and her head spun around, putting two and two together despite her attempt to interpret in a way that wasn’t true. “Photo Finish… and you?”

“YES!” Sweetie Belle could feel the delicious jealousy hammer down the length of her horn and right into her pleasure center. It was already so much stronger than ever before. And she wasn’t done yet. “Yes! I’m the next big thing in Equestria!”

“Juh- Just so you know, my daddy can get me a modeling gig twice as better as whatever Photo Finish duped you into,” Diamond Tiara flushed red, failing to not stare up at the pair of big creamy breasts jutting out above her.

Sweetie Belle crooned. “Ohhh your daddy could throw all the bits in Equestria at Photo Finish and she’d still turn her nose up at you. You saw it. Face it. Your skinny little rump is headed for obscurity and I’m headed for fame and fortune.”

Diamond Tiara fumed as Sweetie Belle’s body subtly shuddered in uncontrollable anticipation.

“C’mon DT let’s just go,” Silver Spoon tapped her friends shoulder and motioned with her head down the street. “We don’t need to compare ourselves to her.”

“Why not?!” Sweetie Belle all but gasped, the fur on the back of her neck spiking. Any second now she was going to explode. “You’ve done it to me for years! I’ve been doing it for the past minute and we already know I’m officially better than the both of you put together.” Sweetie Belle fought the desire to just outright fondle herself. “Are you sure you don’t want any more reminders right now? Because that’s all you’re going to get when my face is everywhere. Because I’m going to be huge. I’m going to be the envy of Equestria!”

Diamond Tiara’s eyes practically bulged out of her head but Silver pulled her away before she could say anything. The two mare’s marched away back down the street towards wherever they originally were heading.

Sweetie Belle staggered against the fence bordering the outdoor restaurant seating area like a mare on the verge of collapse. The coiling pressure that had built up her body hit the boiling point and finally released.

The tight black dress clinging to Sweetie’s body all but exploded around her expanding body. Giant tears creased the dainty fabric in long horizontal gashes, revealing inches of creamy white coat to the night air. Loud rips served as a backdrop to her long drawn out moan of her orgasmic whine, her body shooting up several inches at a time. Sweetie hit seven feet tall almost instantly and rocketed right past it in fitful spurts. Her bust flopped out and swelled to a cup size that easily surpassed Celestia, and her ass more than matched even Luna’s most prestigious booty. Her panties snapped and dropped to the ground, useless, as her pussy spasmed and gushed hot juices onto the grass. Sweetie Belle plunged a finger into her desperate snatch, riding the ecstasy of her orgasm past eight feet and growing.

Finally, a sweaty, panting, statuesque eight-foot four Sweetie Belle came down from her orgasm. She had gripped the small iron fence so tight there were the slightest of finger indentations in the metal. Sweetie’s head was bent downwards, and she could see through a small gap of her fluffy mane that several ponies had formed a small perimeter around where she stood. Some were shocked. Others had their hands in their pockets and staring in lustful awe at the sexy feminine powerhouse that just ascended before their eyes.

Sweetie Belle flipped her mane out of her eyes and stood up straight and proud, wiping the sweat from her forehead. She didn’t quite care if they could see her naked. In fact she preferred it. Let them get a look at her big, beautiful body. In days she’d be everywhere anyway. On everyone’s eyes. Sweetie stroke a sexy pose and tossed her mane, relishing her newfound vantage point heads above the normal sized crowd. She winked at young stallion and spun around, strutting nude back to The Carousel Boutique.