Fifteen Years Younger

“I-It’s not my diaper!”

Those words all but sealed her fate. Because maybe, maybe, there had been a chance that Sweetie Belle hadn’t noticed the bulge around Applejack’s hips. And if she had then maybe, maybe, she hadn’t suspected it was because Applejack was wearing a diaper. And if Applejack had just slammed the door shut, or ducked behind the bed, or anything else, then maybe, maybe, what happened next wouldn’t have happened.

Sweetie Belle laughed.

Applejack’s cheeks flared a whole new shade of red. Her glow only brightened as Sweetie’s squeaky laugh continued.

“Wha-hahaha-t are you wea-hah-ring?” She choked out, wiping a tear from her face.

Applejack covered her bulging rear. Then her crotch. Then her rear again. “Don’t look!” she demanded, Sweetie’s laughter only growing louder.

Her whole bottom lip was in her mouth. Biting down, Applejack failed to hold back a blush from scorching her cheeks. She grabbed her hair, nearly pulling two fistfuls right out of her scalp. This wasn’t happening. This was not happening.

FLASH!

Applejack froze, looking up to see Sweetie Belle had her phone out. She clicked the screen again.

FLASH!

“H-Hey!” Applejack stammered. There was no way that she’d just—

She backed up into a chair at Rarity’s desk, grabbed it, and pushed it in front of her spread gait for damage control. “Don’t take any pictures!” she squeaked out.

Sweetie Belle snickered. “Oh… too late.”

“Grr…” Applejack almost lurched forward for the phone, but kept herself behind the chair. She couldn’t let this get any worse. “Look, I’m just doing this as a favor, I don’t normally… come on, stop laughing!”

Sweetie Belle put a hand over her giggly mouth. She was trying to say something, but couldn’t get the words out. Finally, “not—huh-HAH!—not so much fun when you’re the one being laughed at, huh?”

Applejack’s ears burned. Sweetie Belle wasn’t still sore about being caught in her tea party was she? Given that she still had Rarity’s dress and feather boa on, she clearly hadn’t let the intrusion interrupt her too much.

“C-Come on, that was different.” Applejack managed. “I was just… I couldn’t help myself.”

“Well me neither,” Sweetie Belle remarked. Her laughing fit had finally calmed down to just a wry smirk. She looked like she was enjoying the shoe being on the other foot. “I wonder if Apple Bloom and Scootaloo won’t be able to help themselves if they see these pictures…”

The blood rushing under her cheeks went cold. “You wouldn’t.” Her own sister seeing her like this? Not to mention if Scootaloo saw this her big mouth would tell Rainbow in no time. “You’re not going to!” She marched out from the chair, determined to rip the phone from the middle-schooler’s hand.

“Ah-ah-ah!” Sweetie Belle’s finger hovered over the screen. Applejack froze. For all she knew, Sweetie could be about to hit send on one of those pictures.

Her tune changed immediately. “N-Now don’t be too hasty, ya hear?”

Sweetie Belle snickered. “Hmm… I dunno… you haven’t been really nice to me lately.”

“What do you want?” Applejack asked. She couldn’t help eyeing Sweetie’s unmoving finger. Maybe if I can distract her for a second, I could… no no, too risky.

“Apologize for laughing at me,” Sweetie Belle demanded, hand on her hip.

“Okay… ‘m sorry,” she mumbled at the ground.

“What was that?” Sweetie cocked her head, cupping her ear.

“I’m sorry!” Applejack shouted. “So please—”

“I don’t know if I believe you,” Sweetie Belle said. “You don’t sound very sorry.”

Applejack clenched her jaw. This girl was getting too big for her britches right now. “F-Fine. I’m sorry! I’m so sorry that I laughed at you. It was a lousy thing to do.”

“Hmm…” Sweetie Belle’s finger circled her screen.

A bolt of fear gripped Applejack. She calmed herself, and swallowed her pride. Or, what little pride the situation currently offered her.

Bending down, Applejack got onto her knees. Her diaper crinkled noisily as she did, make her face glow all the redder. She bowed her head near Sweetie Belle’s feet, rear forced into the air by the size of her padding. It really didn’t help that moving like this was exacerbating an earlier problem. Applejack felt the pressure in her bowels growing; she was about to really need to go.

In spite of it all, she bit her tongue and managed, “I’m real, real sorry I laughed at’cha, Sweetie Belle. Please delete those photos now.”

“Mmm… okay, I think you were sincere that time.”

Applejack breathed a sigh of relief.

“But I don’t know if I should forgive you…”

Her head shot up. “What?!”

Sweetie Belle’s smile was so innocent, yet so devilish at the same time. “I still think you’re looking down on me for having a tea party.”

“I’m not!” Applejack lied. “Honest!”

Sweetie Belle giggled and bent down to pat the older girl’s head condescendingly. “Don’t worry, I know how you can make it up to me.”

“Oh no…”

Sweetie Belle’s smile was very much an “oh yes” response. Pinkie finger out, she snarked in a faux fancy accent. “Baby Jackie should join me for a spot of tea and some crumpets!”

“Consarnit!” Applejack breathed. And Baby Jackie? Really?

“What was that?” Sweetie Belle’s eyebrow shot up, her finger flicking just over her phone screen.

“I-I-I said… Let’s do it?” She forced a smile.

Sweetie Belle sheathed her phone, knowing she had the diapered high-schooler under her thumb now. Her mood brightened from sadistic joy to just joy. Grabbing Applejack’s padded mitten, she dragged her up and out of Rarity’s room.

Applejack struggled not to face plant. Not just from the force of Sweetie’s pull, but from her diaper. It was so cumbersome that she could barely keep on her feet. And when she finally corrected herself, she was forced to waddle from her wide gait, dragged behind Sweetie Belle like luggage with a broken wheel.

To make matter’s even worse, she was really starting to feel nature’s call. All this moving around must’ve convinced her bowels she was heading to the toilet, because the urge to poop only grew with each step.

Applejack grunted. No! No way! She tightened her hold back there and prayed the feeling would pass.

“Okay,” Sweetie Belle said excitedly. They burst into her room, the stern control from earlier melted away, as the little kid deep down came out to play. “So, first you have to meet everyone!”

She spread her arms to reveal the tiny table of merely four seats, only three of which were occupied. “This is Sir Bristlefur,” Sweetie said, waving a teddy bear’s arm at Applejack. She waited a moment, then motioned for Applejack to wave back, face indicating she was being rude.

Applejack managed a passive wave of her mitten. “H—ello?”

Sweetie Belle darted to their next toy, a plastic doll wearing a smart business suit, hair done back into a bun. “And this is Pauline Pocket. She’s the CEO of the tea set company. She here to check the product for us. And also she really likes tea.” Sweetie Belle waved the dolls stiff arm for her.

Applejack swiped her hand across the air. “Hi.”

Sweetie Belle was already moving to the last toy. A stuffed white alicorn with a colorful mane leapt out of her chair to greet Applejack. “And this is Celly! She’s magic, and also a princess.”

She had the magic princess pony gallop across the air towards Applejack, only to grab her forearm and lead her to the pony’s chair. “You two will have to share you spot for now.”

“Th-That’s okay,” Applejack insisted. “I don’t mind stand—”

She was flumped down into the low seat without any fanfare, save her noisy diaper announcing it.

“—ing,” she finished.

Well… here she was. Knees bent and spread thanks to the height of her chair and the girth of her padding, butt sinking into the cushion that was her diaper, face dour and tense.

Sweetie Belle plopped the stuffed animal in her lap, then graciously took her own seat at the head of the table. Her smile was too big for Applejack’s liking.

“Does Baby Jackie want some tea?” Sweetie Belle held up her aggressively pink, plastic tea kettle.

Applejack looked at the matching teacup in front of her. Empty. She grumbled out the answer she knew Sweetie Belle wanted to hear, “…yes.”

Sweetie hummed as she poured her a cup, imaginary liquid filling to the brim. “One sugar or two?”

“One,” Applejack mumbled. She shifted in her seat, diaper crinkling. It was already uncomfortable, and the pressure wasn’t easing up either.

Sweetie mixed fake sugar into the cup of air, and held it out for her. Applejack awkwardly cupped it in her mitted hands. Sweetie flashed her teeth as she sat down, pretending to take a sip from her tea. She motioned for Applejack to do the same.

Groaning in the back of her throat, Applejack pretended to take a sip.

“Share with Celly!” Sweetie Belle pointed to the pony in Applejack’s lap. “She wants some too.”

Applejack just sighed. She held the cup down to the plushie’s snout for a few seconds, before setting it down.

“She says ‘thank you’,” Sweetie said.

“You’re welcome,” Applejack mumbled in the vague direction of the fake horse.

Sweetie Belle smirked, topping off her empty cup. “What’s that, Sir Bristlefur?” She pretended to listen to the stuffed bear to Applejack’s right. “He’s says it’s nice to have you here, Baby Jackie.”

“Happy to be here,” Applejack choked through her teeth.

“Hmm…” Sweetie Belle pressed her lips together. “Oh? Great idea, Pauline!”

Applejack looked from the tiny CEO to Sweetie Belle. “What?”

But Sweetie Belle was hopping up, struggling not to trip on the oversized dress as she darted to her dresser. Pulling back a drawer, she dug around inside for a bit. “Hmm… No. Not quite. Uh…”

“What?” Applejack demanded. She didn’t like being left in the dark when it came to Sweetie Belle’s plans for her.

“Aha!” Sweetie popped her head out of the drawer, two long, dark green ribbons in hand. “Pauline said you didn’t look enough like a baby to earn you nickname.”

Not enough… Applejack was wearing a diaper for pity’s sake! “Well Pauline should get her eyes checked,” she pouted.

“Don’t be rude! She had a great idea.” Sweetie scooped up a brush from the floor and disappeared behind Applejack.

She tried to turn her head, but one hand nudged her to look forward. Suddenly, Sweetie grabbed a clump of her hair and started brushing it.

“Ah! Hey!” Applejack cried, the rough bristles tugging at the knots in her hair.

“We’re going to give you hairstyle more fitting of a little girl, Baby Jackie,” Sweetie decided.

Applejack whined in the back of her throat, but didn’t protest further, no matter how much Sweetie’s brushing hurt. The more the girl tugged at her blonde hair, the more Applejack would just bring her arms around the Celly horse in a hug. It was almost unconscious how tightly she squeezed it.

When Sweetie Belle decided Applejack’s hair had had enough, she started tying it tightly with the ribbons. Ponytails fell into place on either side of her head. Applejack clenched her jaw.

It’s just my hair, she thought to herself, trying to keep calm. I can undo it later.

FLASH!

Another photo, catching Applejack off guard. She blinked back the light with a grunt, before anger overtook her. “HEY!”

“Aww,” Sweetie fawned over the image. “You look so cute!”

She turned around the phone to reveal Applejack, stuck in a tiny chair, hugging a stuffed pony, dark green bows in her hair to go along with her childish attire.

Her blush had been a lasting fixture on her cheeks for a while now, but it took up a permanent residence all of her face now.

“No more pictures!” Applejack demanded. “I’m doing what you want, alright? So stop—”

FLASH!

“Hehe, you’re cute when you’re mad, too.” Sweetie Belle tucked the phone away, her smile betrayed just a twinge of annoyance. “And I’ll decided when I have enough pictures, okay?”

Applejack bit down, nearly cutting her tongue in half. “Okay.” She was lucky the mittens hid her fingers curling into fists.

The annoyance faded. “And by the way, Celly thinks ponytails suit you.”

Applejack looked down accusingly at the plushie in her arms, as though she’d actually said that. “Gee, thanks.” Realizing what she was doing, she stopped hugging the alicorn.

Their tea party continued at a brisk pace after that. Bristlefur and Pauline seemed to bombard ‘Baby Jackie’ with questions that forced unfortunate answers out of her. And every time Applejack had to swallow her pride and saying something to get an evil chuckle out of Sweetie Belle.

Where did she go to school? Canterlot Pre-K.

Who babysat her? Her big sister, Applebloom.

Could she walk yet? Still crawling, but she could almost stand up straight.

Each question sent Applejack’s brow furrowing deeper. Each answer had her impatience showing in her tone. And Sweetie Belle was taking note.

“Hmm… Celly wants to know if you’re potty trained yet,” she said.

She felt a push from her bowels; they were getting desperate. Applejack’s face burned.

“Of course I am!” she yelled, stomping her feet.

Sweetie Belle hid a giggle. “Now Celly’s asking why you’re wearing a diaper if you are potty trained.” A snicker. “She’s calling you a liar-pants.”

Pink, scarlet, crimson. Applejack’s face couldn’t pick a color. “I’m not lying!” She threw the stuffed alicorn to the ground. “I’m not!”

“Well don’t be rude.” Sweetie Belle tsked, picking up the plushie and petting it. “Now you’ve hurt Celly’s feelings with your temper tantrum.”

At this point, Applejack had had enough. She crossed her arms. “Good.”

Sweetie Belle sighed. “There’s only one thing to do when a baby gets this bratty.”

Panic rang throughout Applejack’s body. For a moment she worried Sweetie would threaten to send out those photos. She was just about to apologize when she saw the girl walking across her room.

She bent down, picking up a rather large baby doll from the floor. From this angle, Applejack couldn’t quite make out what Sweetie Belle was doing. It seemed like… she was grabbing something from the doll’s mouth?”

“Ugh, why did Scootaloo use so much glue last time?” Finally she pulled it free, but kept it sheltered from Applejack’s view as she walked back over. “So are you going to tell Celly you’re sorry?”

Applejack raised an eyebrow, but made no move to apologize. If she gave up here, she wouldn’t have any ground to stand on. If Sweetie wasn’t going to blackmail her, she saw no reason to play along. After all, she just had to endure until Rarity got back… whenever that would be. She’d at least be able to reign in her little sister.

Her bowels ached, and Applejack worried about how long it would take her friend to get home.

“I see,” Sweetie Belle sighed. “In that case…”

Suddenly, she shoved her hand forward. Applejack barely had time to react before something launched into her mouth. A large, rubbery bulb pushed passed her teeth and came to rest on her tongue. Sticky plastic pressed against her lips.

“Use this to calm down!” Sweetie Belle said.

“Mm?!” It didn’t take long to solve the mystery of what was in her mouth. A pacifier. A bright pink and glittery pacifier by the looks of it. “Mmmph!” Applejack cried out.

She immediately tried to spit it out, but found it hard to open her lips. Blinking in confusion, she brought up her hands, but found the baby mitts too unwieldy to pluck the pacifier from her mouth. She tried to spit it out again, but it came off as a suckle.

FLASH!

FLASH FLASH!

Blinking lights, more pictures. Applejack looked up at Sweetie Belle with some panic in her eyes. What was this girl doing to her?

“Like it?” Sweetie Belle asked. “Cause it sure looks like you do in these pictures…”

Applejack’s face couldn’t decide if it should pale or blush. She kept trying to spit out the pacifier, and kept failing. “Mmm mm mmph?”

“Hehe.” Sweetie covered her mouth. “I got real mad when Scootaloo superglued my doll’s mouth shut the other day, but it looks like it’s paying off now. If you want, I can take it out for you… if you be a good baby and calm down.”

“MMPH!” Applejack stood up, letting herself tower over the middle schooler. She knew she couldn’t do anything to Sweetie Belle right now, but a little intimidation never hurt.

…Was she even intimidating like this? Diapered, pacified, dolled up… she was probably the furthest thing from it.

Applejack’s pupils shrank. She suddenly felt her gut drop.

That sudden movement just now had not been good for her bowels. They’d only just been keeping an accident at bay this whole time, and even that had taken a lot of concentration. Now that she was up, with her legs spread wide and ready…

Oh no…

She could feel it coming.

“Hmm, maybe I should just send these now… Hey wait a minute!” Applejack pushed past Sweetie Belle, and ran right out her door.

This was bad. This was very bad. Applejack could feel her body about to poop, but she wasn’t anywhere near ready.

Bathroom! She thought frantically. Gotta find a bathroom!

Never mind her inability to undress. She’d forgotten about that entirely. Applejack just bit down on the pacifier’s bulb and sprinted for the stairs.

She knew Rarity’s house decently well. The nearest bathroom should be at the bottom of those steps. If she could just get there in time…

She slipped right at the top. Her ballerina slippers didn’t do well on the carpeted stairs. To make matters worse, she was full on sprinting when she should be toddling. A mistake was bound to happen, she was just unlucky enough to make it before the first step.

Applejack tumbled down the stairs. Back, butt, stomach, face. Every part of her was smacked around. The only thing louder than the thuds was the crinkling of her diaper.

She ended up on the first floor, dazed and butt pointed to the sky. “Mmrrr…” she groaned into the pacifier, jaw stiff. Her lips almost instinctively suckled at the bulb.

Fffffftt!

A loud, wet fart smacked her out of her confusion. “MMM!” she cried out, realizing it was too late. Already her bowels were pushing.

“Applejack, wait!” Sweetie Belle cried out from upstairs. “If you run away, I’ll… I’ll show these pictures to everyone!”

Her pupils became pinpricks. Sweetie Belle was after her. She couldn’t let that sadistic middle schooler witness this!

Applejack scrambled to her feet, wobbling to gain her balance. She grabbed the first door handle she could get ahold of, threw it open, and leapt in, slamming it behind her.

Frrtt! Bluuurch!

The first wave. Applejack moaned into her pacifier, realizing she was messing herself.

Steamy brown mush rushed out of her, and encounter the first layer beyond her undercarriage: her panties.

The thin clothe had no chance against the mudslide about to hit it. Applejack whimpered as the two met, choking back a sob.

“Applejack!” Sweetie’s cry, closer now.

She had to hide. Just being in this room wasn’t enough. Spreading her legs even further as the accident continued, Applejack took a blind step into the dark room.

And immediately knew she’d made a mistake.

Small, thin, but strong lines of something hit her foot, throwing her off balance. Applejack waved her arms frantically, crying out into her pacifier as she twisted around and fell back.

There were more. Long, tough threads seemed to dominate this room. Applejack’s back connected and she started to thrash about.

Some snapped, others held. She became tangled and twisted. Tied in knots by countless strings and threads. She was caught in a web, and the more she struggled, the worse it got.

It was then that Applejack remembered something. This room, the mess of sewing supplies, Rarity closing the door.

Applejack whined into her pacifier. She’d made a horrible mistake.

BLOOORRRT!

The second wave. Mush already pushed up against her panties was forced out as new poop arrived. To make room, the mess shifted out of her panties and into the diaper surrounding it. The brown mush clamored to cover the padding, coat the back of her panties, and snake around up front.

And it just kept coming.

BLOOORRCCHH!

PLOORRRP!

FWUUMMP!

“MM-mm-hmmm!” Tears sprung to her face. She sniffled, and chewed at her pacifier.

The gross, squishy mess in her pampers only grew. Her panties were drowning in the never-ending mudslide. And even still, it only continued to waterfall out of her.

She could hear the diaper crinkle as the mush tried to settle. It was growing to accommodate it all but could barely keep up. The buttons of her onesie snapped a moment later, letting the diaper finally sag freely.

Only then, did Applejack finally stop pooping herself.

She squirmed, unable to escape from the threads that now trapped her. The warm mush slathering her butt was finally settling down for real leaving her diaper to crinkle and squish grossly.

She shuddered at the feeling. The sensation. It was the worst experience of her entire life, and there were plenty of contenders for that on this day alone.

She couldn’t spit out her pacifier. She couldn’t get out of her dirty diaper. She couldn’t even move.

All Applejack could do was let the tears flow, suckle occasionally, and wait for Sweetie Belle to find her.

And, eventually, she did.

FLASH FLASH FLASH FLASH!

Rarity’s heel struggled against her front door, finally turning the knob and letting her inside. She gasped, dropping bag after bag of supplies at her front door. Silk spilled over, spools tumbled out, but it didn’t matter. They were here, and she could make something with that.

“Finally.” How many hours had that taken? She couldn’t say.

She stretched, ready to get back to her sewing. She just hoped Applejack had been gentle when taking off the overalls and onesie. She didn’t doubt the farm girl had ripped them off the second she’d been able to, but at the very least Rarity hoped she didn’t have to sew anything back together before she started marking adjustments.

Just then, a high-pitched, but muffled cry caught her ears. Rarity’s brow climbed her forehead in curiosity. “What on Earth…?”

Rarity moved through the house, approaching the stairs while keeping her eyes trained up against the ceiling.

“Mmph-rry!”

There it was again!

Rarity’s interest was piqued now. She climbed the stairs, following the muffled cries as they seemed to grow louder and louder. Her nose wrinkled as a bizarre smell hit it, but she was to curious to be disgusted.

Finally, she came to the source of the noise. Sweetie Belle’s bedroom door. Of course.

Rarity rolled her eyes. And what has my sister done now?

“Mmmph-rry! Hmmph mmr!” The muffled cries sounded kind of familiar.

Rarity cautiously nudged open the door. “Sweetie B—Oh my word!”

Applejack, still dressed in the onesie and overalls from before. Except her hair was tied into ponytails by giant bows, a pink pacifier was shoved in her mouth, and the bulge where her diaper was looked far bigger than it had before.

She was sitting at Sweetie Belle’s tea party, tied in place by a countless number of long, loose threads that pinned her mitted hands behind her back, her ankles together, and her arms to her side.

And Sweetie Belle, standing over her, shoving a stuffed pony toy into her captive cheek as though it were kissing her.

When Applejack saw Rarity, her muffled cries picked up with desperation, her red face barely resembling her usual skin tone.

And then the smell hit her. It became so powerful upon opening the door that Rarity couldn’t resist gagging now.

“What is going on here?!” she demanded.

Sweetie Belle dropped her plushie in surprise. “Uh… a tea party?”

Rarity took a moment to process that… and then decided to go look for a fainting couch.