Baby Alterations

by Strip Tease

Rating: mature
Tags: My Little Pony: Friendship is Magic, Princess Cadance, Romance, Porn, Mr. Cake, Fetish, Shining Armor, Slice of Life, Cake Twins, Mrs. Cake
Length: 2964

Flurry Heart's magic alters her and the Cake twins lives

While Flurry Heart, Pound Cake, and Pumpkin Cake are over for a playdate at Twilight's castle, Flurry accidentally shoots a magic beam at their changing supplies that unknown to anypony enchants their diapers. This causes reality altering affects that chnage their lives forever.

Story contains age regression, age progression, role reversal, impregnation, cross dressing, and gay themes.

Art by: Multiple. Visit Source

Published 2020-11-08 06:20:01 UTC
Last updated 2020-11-08 06:20:01 UTC

Baby Alterations

A cover I made for a fanfic. You can find all the sources of what I used here:

Pound and Pumpkin: https://derpibooru.org/images/2250802?q=pumpkin+cake%2C+pound+cake
Pregnant Cadance: https://derpibooru.org/images/1624338?q=princess+cadance%2C+vector%2C+pregnant
Panties: https://derpibooru.org/images/504302?q=trixie%2C+panties%2C+transformation
Mrs. Cake: https://derpibooru.org/images/585724?q=cup+cake%2C+diaper

It was another beautiful day in Ponyville as Twilight Sparkle and Pinkie Pie sat and chatted inside Twilight’s castle.

The two friends were on babysitting duty, with Twilight watching her niece Flurry Heart and Pinkie Pie tasked with watching Pound and Pumpkin Cake.

The two had been planning the little get together for weeks. It was rare that the baby ponies got to be around other foals, with the cakes always running their business and Flurry being a Princess. Twilight and Pinkie agreed that having their young charges socialize would be a good way for them to learn the basics of friendship.

Even if that meant just sharing and being nice to one another.

The play date had been going well so far, with the twins and Flurry playing nice for almost an hour, Twilight and Pinkie were left to mainly chat about what was going on in their daily lives as of late.

As the two friends chatted, the foals seemed to be having their own fun.

Pumpkin had managed to control her magic enough to levitate some of the toys that had been laid out for them on the floor, juggling them in the air much to her brother and Flurry’s amusement.

Flurry began to attempt to juggle some of the toys herself, but was finding it quite difficult.

Although the young Princess certainly had more magical capability then her unicorn friend, it seemed Pumpkin being a year older had given her a bit more control over her magic.

Flurry wasn’t one to give up easy though, and kept trying to copy Pumpkin.

The twins watched in anticipation, babbling sounds of encouragement to Flurry that only the young foals could understand.

What Flurry was too young to realize yet was that what she needed was practice and concentration, all ideas that her young self was years off from learning.

She instead just kept trying to use more and more magic until the inevitable happened.

Flurry charged up so much magic into her horn that she could no longer control it.

Her magic shot in a powerful burst across the room, hitting her and the twins diaper bags and drawing the attention of Pinkie and Twilight, who immediately ran to check on their young charges.

“Flurry Heart you need to be more careful! You’re still really young to be using your magic.” Said Twilight in a concerned way that let Flurry know she had done something wrong.

A quick inspection by Twilight and Pinkie showed them that the foals and the immediate area had not suffered harm, so the two mares once again left the babies to their fun and went back to the couch to talk as before.

Unbeknownst to anypony however, Flurry’s magic seemed to be doing something.

Inside the diaper bags all the foal diapers began to change subtly.

Pound Cake’s blue diapers gained the outline of blue bows on the rear end, Pumpkin Cake’s pink diapers gained the outline of a foal wrapped in blanket on the rear end , and Flurry’ cloth diapers gained a heart on the rear end.

All things that a grown pony wouldn’t notice in the action of changing a diaper for the millionth time, but things that if noticed would tell a pony that perhaps some kind of enchantment had been added to the garment.

Soon the day had wounded down and the Cakes and the rulers of the Crystal Empire came to pick up their kids, thanking Twilight and Pinkie for their services before all heading for their homes for the night.

Mrs. Cake carried her bundles of joy into their nursery to get them ready for bed.

A quick diaper check told her they both needed to be changed, so she laid them down on the changing table and got to work, removing the tapes on both their diapers, wiping them both clean, sliding new ones under their rumps and drizzling them in baby powder before tapping them both up in their new clean diapers.

She then laid them in their cribs, tucking them in and giving them a kiss goodnight before closing the door behind them.

As Pound and Pumpkin both began to fall asleep, their diapers began to glow, which quickly spread and enveloped the foal’s bodies.

Pumpkin Cake began to grow, slowly at first, going from the age of a baby to a toddler, then a young filly with a cutie mark, and finally a young mare.

Her body now had a curvy flank and her mane and tail had grown into a stylish yet low maintenance appearance.

Her diaper had given out, the tapes ripping open and the garment laying flat under the now grown mare’s butt.

Her body overflowed out of her crib, her limbs dangling over the sides of the raised bars.

Still she slept soundly, either a deep sleeper or because the magic saw to it she wasn’t awakened.

Down the hall Mrs. Cake was beginning to feel strange. Her body began to tingle and not long after she found herself shrinking in size from a grown mare to a young mare.

Her body slimmed down, losing the weight she had gained from her pregnancy.

She shrank smaller still, becoming the size of a young filly, then a toddler, her cutie mark vanishing from her flanks.

She then became even younger, sitting on top of her old apron as a one year old foal.

Her mind had also adapted to its new age.

Memories of giving birth, getting married, meeting carrot cake, recipes, how to bake, all manner of book knowledge and even her memories of how to walk and talk were now gone.

All that remained of her was a one year old foal on the floor who had started to suck her hoof.

In a flash though she was gone, and so was Pumpkin Cake.

They both were soon back in each other’s places, with Mrs. Cake now in Pumpkin’s crib and Pumpkin now standing where her Mother had been a second earlier.

Pumpkin was now awake and standing. She blinked her eyes a few times, trying to organize her thoughts.

What had she been doing again? She looked down and saw an apron on the floor in front of her. Was it hers?

She picked the apron up and slid it over her head, tightening it around her waist only to find it a fair bit big.

This wasn’t a problem for long though as her body glowed once more.

She began gaining weight, going from a petite mare to a chubby one.

Her belly surged forward, packing on the pounds from years of eating sweets combined with carrying a foal.

Her butt and thighs gained some weight as well, her thighs now rubbed together and her butt began to rival that of a cows.

She could now be best described as having a Mom Bod, looking more like a milf then a young mare looking for a date.

As her changes finished, her thoughts seemed to fall into place.

She was Pumpkin Cake. She ran Sugar Cube Corner with her husband Carrot Cake and her friend Pinkie Pie.

She was the Mother to an adorable little foal named Cup Cake.

All of her Mothers old memories were now Pumpkins. She had lived pretty much the same life as her Mother did, but as far as anypony knew it had always been hers.

She decided she should check on her daughter before she turned in for the night.

The now chunky Pumpkin Cake turned and headed toward her daughters nursery, her body jiggling slightly with each step.

She had always been a little self conscious about her weight, but her lifestyle didn’t really allow her the opportunity to slim down given how many sweets she had to test in a day.

At least her husband didn’t seem to mind.

She would occasionally catch him eyeing her butt throughout their work days together, and he certainly couldn’t keep his hooves off her when they were in bed together.

Her heart fluttered at the memories of their love making.

Soon she reached the door of the nursery and placed her hand on the handle.
As she turned it, Pound Cake and his crib vanished in a poof of magic.

When Pumpkin Cake opened the door, all she found was her baby Cup Cake, babbling at her from her crib with her diaper off.

She made her way over and scooped her daughter and her diaper up. She was thankful she hadn’t gone since she managed to remove it.

“Now sweetie, you can’t be taking your diapee off ok? Mommy doesn’t want a big mess to clean up.” She said as she laid Cupcake down on the changing table and refastened the open diaper she had been wearing minutes earlier around the foal’s bright blue flank.

She then carried her former mother, now her daughter, over to her crib and tucked her in, giving her a kiss goodnight before exiting the nursery and heading down the hall to her own room.

As she made her way down the hall, she passed a door that hadn’t been there before.

At least not a few minutes ago that anypony remembered then.

As far as anypony now remembered that had been to Sugar Cube Corner it had always been there.

Inside, the room was beginning to take shape and against the one wall was Pound Cake in his crib.

Just like his sister before him, he too began to get bigger, growing from a foal to a toddler, then a young colt, his cutie mark appearing on his flanks, then a young stallion.

At least, sort of a stallion.

At a glance the grown pony under the sheets of the now full sized bed draped in lavender and pink colored sheets was not recognizable as a stallion.

Dark blue socks clung to the grown colt’s legs.

His body more leaned toward slender like a mares instead of the muscle bulging barrel of a stallion.

He wore two bows, one tied at the base of his tail and the other clipped in his mane beside his right ear.

His waist also left very little signs of masculinity, as his flank and butt nearly rivaled his sister’s in size, a trait the grown colt took great pride it.

Between his legs sat his package, which at a quick glance any mare or stallion could tell was on the small size.

Not that it mattered though. His thoughts didn’t wander on about how the tight embrace of a mare’s vagina might make him feel.

Instead, his mind lusted for large muscled colts with huge cocks that he could suck and take up his tail hole.

Memories began to fill the now young stallions mind.

Growing up he had always known he was different.

Playing with filly toys and dressing in his sister’s cloths when nopony was home. Once he hit puberty he finally realized what it was.

He loved stallions. He loved being pretty and held tight by a strong male.

He loved being a perfect femboy sissy.

His room reflected that of course.

Posters of nude and muscled stallions adorned the purple walls.

A dresser filled with a variety of skirts, short shorts, tank tops, bras, and socks sat against his one wall.

Pictures of some of the stallions he had been with adorned the mirror.

A bedside table next to his bed contained his large sized dildo for his lonely nights along with some nudie magazines and lube.

A few plush animals that he’d received as gifts littered some of his shelves.

Other then that his room was fairly normal, with a bookshelf with some books and a desk for when he needed to do some work.

When he wasn’t coming on to stallions in one of Ponyville’s gay bars, he was at Sugar Cube Corner, his home where he helped his sister and her husband bake and handle the finances.

He had always had a knack for numbers.

As his new reality and room settled into the adult colt’s mind, a forehoof wrapped itself around Pound’s sleeping body, cuddling him close.

It was none other than Big Macintosh of Sweet Apple Acres, one of Pound’s favorite stallions to sleep with.

With his strong muscles and super sized package between his legs, he was everything Pound could want.

Plus the scent of apples and musk that always seemed to cling to the farmpony along with his quiet yet caring nature made Pound seriously consider settling down with him permanently.

As Big Mac held him closer, his smell made them femboy smile warmly at his stallion’s touch.

Big Mac, mostly asleep, positioned himself to spoon with his boyfriend, enjoying how soft and lush Pound’s butt felt against his crotch.

He gave Pound’s neck a nuzzle before easing back to into his deep slumber.

On the floor in front of the bed was the diaper that had been around Pound’s flank moments earlier.

It was the last thing to change, as it’s plastic outside and absorbent inside compressed and turned into a dark blue cloth with frills around the leg holes.

His former diaper was now his favorite pair of silk panties that, as far as he and Big Mac knew, he had been wearing hours earlier to work the farmpony up before their gay lovemaking.

Meanwhile, miles away, a train rumbled along the tracks through the Equestrian countryside.

Only three cars aside from the engine were pulled by the train, with the first and last car containing guard soldiers to protect the Crystal family that resided in the middle car.

It was late, and Cadance was beginning to get Flurry ready for bed.

She had just finished changing her diaper and now had her placed on her nursing pillow, easing Flurry over to her breasts to have her nightly feeding.

As Flurry drank her milk, she and Cadance began to feel strange as Flurry’s diaper began to glow and encompassed them both.

Both began to feel tired physically. Flurry shrank slightly, her size three diaper now felt quiet big on her.

The baby alicorn closed her eyes, much too tired to continue her meal.

A moment later, the magic around her flashed and she was gone, nothing left of her but her diaper.

Cadance was in a foggy state of mind. Something told her that there was something wrong, but she couldn’t seem to figure out what it was.

Her stomach began to push outward, going from a small bump to a big one in seconds.

Her thighs and butt gained some weight as well to match her stomach, ballooning to a curvy size.

Her breasts also began to expand gaining a few cup sizes until they looked liked water balloons dangling from between her legs, filled with lots of nourishing milk that had yet to be devoured by her hungry foal.

Cadance’s mind began to shift slightly. All the memories of the past year changed to ones without her daughter, while memories of her pregnancy replaced the gaps.

As far as she or anypony else remembered, she had yet to have her foal.

She was just entering the eleventh month of her pregnancy, and despite some first child nervousness she had enjoyed the experience very much.

She was so thankful for Shining’s help the past few months, as well as her family, friends, and subjects.

Everypony had helped her to make her pregnancy as smooth an adjustment to her life as possible.

It hadn’t been all bad though.

She loved how attentive Shining had been to her, always checking on her and the foal and making sure she felt loved and appreciated.

Her pregnancy had made much of her body more sensitive to touch, which made their lovemaking all the more enjoyable for her.

Plus she had to admit she had grown to love her pregnant body.

The pregnant alicorn pushed herself to her hooves and stepped in front of the full body mirror attached to the wall, striking a few posses.

Part of her had always been a bit unhappy with her thin physique. While she certainly wouldn’t call herself unhealthy, part of her wished she was a bit curvier. Her pregnancy was the first time she had experienced having any extra weight on her frame, and she had to admit, she kind of liked how rounded and soft her tummy, butt, legs, and breasts now were.

She hopped some of the weight would remain after her pregnancy.

As she ran her forehoof over her belly, she felt a few kicks from inside.

“Yes baby. Soon you’ll be with your Mommy.” Said Cadance, eager to meet her new foal.

“Ready for bed dear?” Said Shining Armor, coming out of the bathroom to greet his wife.

“Be right there sweetie.” Said Cadance, turning back toward the pillow to fetch something.

Where Flurry’s old diaper once was now sat a pair of blue lace panties with gold trim.

Cadance picked the garment up with her magic and slide it up her hind legs until it rested taught against her wide hips.

The garment was merely for foreplay of course, but Cadance loved how Shining would remove the garment from her waist with his teeth. Plus her royal tush looked sexy as tartarus in it.

She made her way to the bed and the company of her husband’s hooves, eager to make the most of their free time before they became parents.

A foal can be a hoof full after all, they just may change your life.