[C] Big Rumble

by scribe-feather

Rating: teen
Tags: Romance, Rumble, Slice of Life, Thunderlane, My Little Pony: Friendship is Magic, Flitter and Cloudchaser
Length: 13561

With the help of a mysterious book, Rumble reverses roles with his older brother Thunderlane. (ABDL Themes)

Like many siblings, Rumble and Thunderlane don't always get along. The age gap and personality differences often leads to heated arguments that leave both ponies frustrated. With the help of a mysterious book, found in the library of Twilight Sparkle's castle, Rumble takes the situation in his own hooves and devises a plan to reverse roles with his older brother.

Commission for Twinkie Hoof

(Do not continue reading if you do not approve of hypnosis, diaper usage, mental regression, or adult baby themes. If you do not like it or are under legal age, please do not keep reading.)

Published 2015-10-13 02:00:01 UTC
Last updated 2016-04-08 23:29:22 UTC

Chapter One: Brotherhood

Author's Note

DISCLAIMER: Make no mistake here. This is fetish material about cartoon ponies. Do not continue reading if you do not approve of diaper usage, mental regression, or adult baby themes. If you do not like it or are under legal age, please do not keep reading.

Please do not redistribute, alter, repost this story or anything else I write on this site or some place else without my permission.

This Story Contains:
Adult Baby Themes (Heavy)
Diapers (Heavy)
Role Reversal (Heavy)
Bedwetting (Medium)
Diaper Usage - Wet (Medium)
Humiliation (Medium)
Hypnosis (Medium)
Public Exposure (Medium)
Regression - Mental (Medium)
Watersports (Medium)

Chapter One: Brotherhood

Big Rumble
By Scribe Feather
Chapter One: Brotherhood

✶✶1✶✶

High above the valley town of Ponyville fluffy clouds drifted through the sky, giving the blue expanse a special kind of stillness. The pegasus Thunderlane rested on top of a cloud in the middle of this white layer of puffy clouds. His cloud slowly drifted through the sky as the dark gray stallion lazily napped.

The weather pony’s morning had already been filled to the brim with a full schedule. He figured after all the work he had been doing, he earned himself a nap. And what better place to spend it then on top of a plush cloud.

In his post-work laziness, it could have been very possible that he’d sleep the rest of the day like that in no pony intervene..

"Thunderlane!" a voice called out causing the snoozing stallion to jump, nearly falling off his pillowy cloud in a fit of panic.

"Ah! What?!" the started pony said as he jumped to his feet, eyes hastily darting around. His eyes scanned the area, quickly spotting his little brother Rumble standing before him. The blueish gray colt’s eyes bulged out for a moment as his older brother flailed about. "What is it?"

"You said you’d help me with my flight homework."

Thunderlane sighed, relieved that it wasn't some kind of emergency. "Is that it?" the pony breathed rubbing the sleep out of his eyes, "I’ll get to it later, alright? I’m busy."

“Thunderlane, you’ve spent all day napping!”

“Yeah, well I’ve had a busy morning. I’m tired.”

“But you promised!”

The older pony didn’t bother with a response. He simply fell right back to sleep again.

Rumble huffed, realizing waking his brother up again would only just lead to them arguing again. Instead, he gave up and glided back down to the ground.

Landing on solid ground, the frustrated colt was left to fume about his lazy brother. A slow walk home gave him plenty of time to dwell on the encounter. Before setting off on his journey, he adjusted the leather straps of his school saddlebags. Once he was sure the heavy text books in the bags were secure, Rumble set off down the winding, dirt path.

Like many siblings, Rumble and Thunderlane didn’t always get along. The age gap and conflict of personalities always seemed to make their arguments abrasive whenever they had the misfortune of having one. Thunderlane never seemed to want to play with Rumble, much too busy working or napping or trying to woo a mare with an aerial trick. It seemed that the two ponies’ interests grew farther apart from each other with each passing year.

It didn’t seem to always be like that, not as far as Rumble could remember. He could remember things being different a few years back, back before Thunderlane’s interest in mares became one of his strongest priority. Rumble, in his young mind, couldn’t see what the big deal was and struggled to understand his brother’s laziness and lack of motivation. If HE was the big brother things would have been completely different. He wouldn’t be as moody as Thunderlane.

Down a ways on the dirt path Rumble suddenly stopped dead in his tracks. His ears perked up as he heard distant voices chattering. He noted the voices were quickly getting closer as he could pick out three distinct voices.

Acting on instinct, Rumble dove for the bushes and hid. The green leaves rustled for a moment as he darted for the hiding spot, not daring to say a word as the hoofsteps got closer. Three fillies emerged from the other side of the hill, slowly walking alongside each other as they chatted away.

“It was just a book, Applebloom,” Sweetie Belle could be heard saying as the three came closer to Rumble’s hiding spot. “It’s no big deal.”

"It's jus’ that Twilight took it away b’fore we could even look at it!" Applebloom answered.

"Oh come on, Applebloom, what were we supposed to do with a book about hypnosis anyway?" Scootaloo replied.

"I don't know,” Applebloom replied, “but if we wanna get our cutie marks we gotta look into everything."

“Well we can forget that book,“ Sweetie Belle added, “Twilight was pretty firm on keeping us away from it.”

“A minor set back,” Scootaloo confidently said with a gesture of her hoof, “who wants a book reading cutie mark anyway! Didn’t Big Mac say something about hauling some furniture?”

“Yeah, it’s a small favor he’s doin’ fer Rarity,”

“Well then that’s our next stop! Come on!” Scootaloo dashed out, shortly followed by Applebloom.

Sweetie Belle trailed behind just a tiny bit, caught off guard by her friends’ sudden mad dash. “W-wait up!” Sweetie Belle called as her hoofsteps faded into the distance as well.

Rumble stayed in his hiding spot long after the three fillies were gone. He listened as their voices faded into the distance. Once he was sure the coast was clear he poked his head out of his hiding spot.

“Hypnosis?” the colt mumbled to himself in thought. He idly tapped his hoof on his chin as the single word started conjuring up possibilities. Already his mind stirred up ideas that could possibly solve his problems.

Chapter Two: Curiousity

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Chapter Three: Step One

Big Rumble
Chapter Three: Step One
By Scribe Feather

✶✶3✶✶

“I’m home!” Rumbled called out as he walked through the front door.

Thunderlane was there to meet him at the door, holding a half eaten sandwich in one hoof. “Where have you been? I thought you had homework?”

“I had to pick up a book from school,” Rumble answered, “I thought you were napping?”

“I got hungry,” Thunderlane answered with a shrug, taking a bite of his sandwich. “Might go back nappin’, I don’t know.”

Rumble paused for a moment. “Hey...could you sit down in the living room for a minute? I wanted to show you something.”

“Can’t you show me here?”

“It’s better if I showed you in the living room.” Rumble answered, but still his brother hesitated. “Just sit down, alright?” Rumble exclaimed, tugging Thunderlane’s hoof.

Rolling his eyes, Thunderlane followed directions, plopping down onto the living room couch. The pony slouched in his spot, lazily looking up at Rumble. “Now what’s this about?” He asked with a strong hint of exhaustion boredom in his voice.

Rumble quickly conjured up an excuse. “I...just wanted to...show you my new watch!” The colt quickly leafed through his saddle bags, digging out a blue pocket watch on a metal chain.

The book was clear when it recommended beginners to use some kind of object that would grab the attention of their target. Something shiny and eye catching was suggested so to the young colt, the pocket watch seemed fitting. The object had been sitting in the school’s lost and found for weeks now, constantly being buried by winter coats and text books. It’s ordinary appearance didn’t make it seem all that valuable aside from the small, white, fake gems that dotted its outer border.

Rumble dangled the watch in front of Thunderlane, swinging it in front of his brother’s eyes. At first Thunderlane looked at the spectacle with boredom and disinterest, barely giving the pocket watch any thought. But as time went on, he grew subtly more interested in the watch. The watch responded with an ever so faint glow that seemed to intensify the more he stared at it. Soon he began looking at it for longer periods of time and eventually began to stare at it with an unblinking gaze.

Right away, Rumble realized that he wasn’t the best at putting ponies under trance. Many times he could see Thunderlane’s awake mind stir, momentarily becoming aware of his surroundings before falling back under the hypnotic spell of the pocket watch.

“Okay so,” Rumble started as he tried to organize his thoughts like the book said. “You’re gonna feel relaxed...like really relaxed.” The pocket watch glowed and pulsed as Thunderlane began falling under a cloudy daze. "You still with me, bro?" Rumble said as he waved a hoof in front of the other pony.

Thunderlane's eyes remained locked onto the swinging watch, blinking slowly. His mind started to grow blank as the trance distracted him from coherent thought. The only thing that seemed to run through the stallion’s head was the order to keep staring at the blue watch that swung in front of him.

Rumble grinned, happy to see the hypnosis successfully working. He opened his mouth for a moment to command his tranced victim, but immediately closed it. Through all this he failed to come up with anything to suggest to Thunderlane. In his haste to plan out step one, he never spent any time figuring out step two.

With his brother still under the watch’s hypnotic spell, Rumble did some thinking. He knew he would need something to give him the upper hoof over his brother. He needed something that would put Thunderlane in his place, maybe something he could hold over his brother’s head when he was being mean to him.

Finally inspiration struck the young colt. His clever little mind conjured up something that would be embarrassing for Thunderlane to talk about as well as knock him down a few pegs. “Right, so, when you’re sleeping you’re going to have less control over your bladder,” Rumbled tried to talk slowly so that the suggestion worked it’s way into Thunderlane’s mind, but at times his excitement showed through in the form of a quiver in his voice. “You’re going to start wetting the bed and you won’t know why. Okay?”

Thunderlane just nodded, eyes still locked on the pocket watch that glowed ever so faintly.

Rumble grinned and happily exclaimed, “great! Well then...When I stomp my hoof, you’ll snap out of your trance without any memory of it, okay?” Again, Thunderlane nodded to which Rumble felt a wave of excitement rush over him. He slipped the pocket watch back into his bag and stomped the ground once.

Thunderlane reacted instantly, waking up from his open eyed sleep. He shook his head, regaining his bearings as he pulled himself out of his slouching position.

The older pony rubbed his eyes as if waking from a brief nap. “So...what was it you wanted to show me? Is it just the watch?”

“Y-yeah,” Rumble answered as he opted to put the watch back into his bags. “I guess it’s no big deal.”

Thunderlane just shrugged before pulling himself up from the couch. “I’m gonna go take a nap,” he mumbled as he scarfed down the last few bites of his sandwich.

“O-oh alright...” Rumble answered, “don’t wet the bed now!”

Thunderlane just looked back at his brother with a raised, unamused eyebrow. “Yeah...whatever.”

With that the stallion trotted out of the room, making his way upstairs, and into his bedroom. He yawned as his body prepared for the soothing nap that he so craved.

Rumble meanwhile pulled out a notebook from his bags. The quick hypnosis session with his brother made him realize just how under prepared he was. He needed to take some notes to plan out what he had already set in motion.

“Step two,” he started to write out on the lined paper, “make Thunderlane the little brother.”

Chapter Four: Successful Progress

✶✶4✶✶

Rumble did his best to control his excitement as the hypnosis slowly took effect over the following days. Thunderlane’s progress was slow, but Rumble constantly reminded himself that his patience would be reward. The hypnosis book would regularly warn the reader not to rush things. It encouraged a slow process that would ease the patient into the suggestions that laid dormant in the back of their subconscious for now.

The younger pony spent many nights listening closely to the quiet house outside his bedroom door. He laid in bed every night, silently hoping that this was the night he was waiting for. He hoped this would be the time when Thunderlane would finally wet the bed, proving that all the time he wasted on putting his brother under a trance would pay off. For the longest time, Rumble began to suspect it wasn’t working. Finally, the night came where all Rumble’s work seemed to be successful.

“Dang it!” a distant voice could be heard coming from Thunderlane’s room.

Some more noises followed Thunderlane’s exclamation. Noises of movement and something sliding against something else could be faintly heard coming from his room.

The excited Rumble practically leaped out of his bed, bedsheets flinging to the side as he made a dash for the door. Peeking out into the dark hallway he could spot a faint bit of light slipping through Thunderlane’s bedroom door.

Thinking nothing of his brother’s privacy, Rumble let himself into Thunderlane’s room. He saw his brother hastily gathering his bedsheets. The various layers of material were all gathered into a loose ball in the middle of the bed.

Rumble stood in Thunderlane’s bedroom doorway, wearing a cocky smile. “You’re up late.”

“What do you w-want?” Thunderlane did his best to hide the ball of sheets from his nosey brother. His face was red with blush as he failed to compose himself.

Rumble shrugged, “I just heard some noises out here and went out to look around. Why are your bedsheets like that?”

“U-uhm I was just going to...wash them...”

“Did you wet the bed?” Rumble said, holding back his snarky tone.

That seemed to strike the right note as Thunderlane’s cheeks suddenly flared up. “No! G-go away!”

“Yeah sure, I’ll be right out,” Rumble answered, “but first I think we should have a little talk.” He raised a wing, pulling out the blue pocket watch out from underneath. “I’m sure you know the drill right now.”

Thunderlane’s eyes instantly shot to the chained watch, subconsciously becoming familiar with it. A switch was flipped in the back of his mind, forcing him to focus on the shiny, blue object.

“No need to get all stressed out about it,” Rumble calmly said as he started to wave the watch from left to right, “just look at the watch.”

Countless sessions prior made it easy for Thunderlane to slip into a suggestive state. He only needed to stare at the watch for a few minutes before he fell under its spell.

Rumble smiled triumphantly. "Now...First of all. I'M the big brother now! Okay?"

“You’re the big brother,” Thunderlane mumbled back with his eyes sleepily staring at the swinging watch.

Rumble smiled to himself for a moment, feeling a bit of pride swell up in him. He never had this kind of authority before. It felt good. “Yeah, so whenever you think about being the big brother, you’ll feel even more of a little brother, got it?”

“I’m the little brother,” Thunderlane answered.

“Excellent!” Rumble smiled big and proud, “now head off to bed. It’s been a big day.”

Thunderlane nodded and obeyed. With the same cloudy daze he began unraveling the his bedsheets, sloppily respreading them onto his mattress. A sizable dark spot could be seen in the middle of the blankets as the ever faint scent of urine wafted from the mattress.

That only seemed to make Rumble’s smile and triumphant pride grow. “Goodnight, ‘lil bro’!” Rumble called out.

“Ni ni,” Thunderlane answered with a drowsy tone. He climbed into bed, not even reacting to the large cold spot that soaked into all his blankets. Already he could feel the sleepy spell work on him, lulling him back to sleep.

Rumble backed out of the room, slowly closing the door. He still wore that happy smile for a job well done. Thunderlane was well on his way.

Chapter Five: Going Shopping

Big Rumble
Chapter Five: Going Shopping
By Scribe Feather

✶✶5✶✶

Thunderlane wetting the bed for the first time was a step in the right direction. The stallion avoided telling his little brother like the plague, ashamed of himself and too embarrassed to admit such things. He always made sure to wash his bedsheets the morning after, doing his best to rid himself of the lingering urine smell.

Rumble could hardly believe the book was right. He gave the hypnotic suggestions a few more days to settle in Thunderlane’s subconscious. He had hoped that his patience would further solidify the subconscious commands buried deep in Thunderlane’s mind.

The wait was agonizing, but soon a week passed and Thunderlane had woken up with a wet bed almost every night. Rumble hid his joy when he spied his brother sneaking off to the laundry room or when he smelled a lingering twinge of urine on his brother. Thunderlane was shaping up to being quite the bedwetter.

On his own time, Thunderlane made futile attempts at keeping his new bedwetting habits at bay. He would avoid fluids before bed, sleep on top of towels, and even try to wake up in the middle of the night to go to the bathroom. All this effort, however, was frequently forgotten and he would wake up yet again with a large wet spot on the middle of his mattress. On the rare occasion that he DID remember to take precautions, Thunderlane couldn’t help but feel childish doing such things. He was a grown stallion afterall.

After so many wet nights, Rumble decided to finally chime in to commence the next step of his plans. One morning he followed Thunderlane as he exited his bedroom. The bigger stallion carried with him a balled up pile of sheets that had a light yellow hue to them. Rumble followed him into the laundry room where Thunderlane hastily began washing his bedsheets.

"Whatchya doin'," the snarky younger pony said, walking into the laundry room with a cocky stride.

Thunderlane jumped, hastily forcing out a startled "Rumble!?" when he saw his brother. "U-uh...N-nothin'. Just...doing some laundry."

"Didn’t you do laundry yesterday."

"Yeah, well I forgot some stuff, okay?"

"Like your bedsheets?" Rumble prodded, "I could have sworn you washed those already."

Thunderlane's face drained of color as he did his best to keep himself composed in front of his little brother. "Y-yeah well...I...you know...Have you finished all your homework?"

“Did you wet the bed again?”

Thunderlane’s face flared up a bright red in a matter of seconds. “What?! No! No way! I wouldn’t...”

“How long has this been going on?”

“I don’t have to tell you that.”

“Oh come on. As your big brother I think I deserve to know.”

Thunderlane felt a slight twinge in his forehead, but the pain quickly dissipated as he answered. “Just...a week or something, I guess.”

“A week?” Rumble answered, trying to sound as genuinely surprised as possible. “And you’ve just been washing your sheets every time?”

“Yeah...”

“I think you should get protection,” Rumbled answered with the best rehearsed tone of voice he could manage, giving the impression that he had just thought of the idea. In reality he had been dreaming of this pinnacle moment for weeks.. “You know, like absorbent underwear.”

“I don’t need to wear diapers!” Thunderlane exclaimed in a fit of embarrassment. ”And it’s not even a big deal. It’s only been a few nights a week. I can handle it.”

“As your big brother, I think you should get some protection before you ruin the sheets anymore.”

Again, a little pinch of pain poked at Thunderlane’s forehead. “Yeah...I...guess you’re right...”

“Great,” Rumble grinned, “then let’s go do some shopping.”

With Rumble gladly leading the two, the two ponies made their way to the local store. Down the main streets of Ponyville, travel time to the store wasn’t long, but the wait was excruciating to the excited Rumble.

The store did well at matching the timber framed buildings around it, but didn’t quite match the overall style of the town. It’s pale, exterior walls were usually dotted with posters advertising current sales or clearances. The front wall was mostly made up of large, seamless windows that opened the interior up to the inviting sunlight.

Past the cash registers at the front ten or so aisles stretched as far as the back wall, each dedicated to broad categories of items. Rumble happily led his big brother past the aisles for mane care products and pet food, making a beeline for the foal and medical care aisle.

On the left stretched shelves housing first aid equipment like pain killer, bandages, and medicated lotion. The right side, however, was filled with a wide variety of diapers, sizes ranging from newborn foals to elderly adults. The choice in design, color, and thickness was almost staggering.

Rumble scanned the various brands that would fit his newly bedwetting brother. He automatically skipped over the boring, white pull up ones and focused more on the ones that had tapes and embarrassing prints to them. If he was going to make his big brother wear diapers, it was going to have to be something worth being embarrassed about.

Thunderlane quietly hid off to one side of the aisle, constantly looked up and down the area as Rumble made his selection. Rumble settled on a pair of “Dry Clouds” with the words “Extra Absorbency” constantly advertised on each side of the thin plastic packaging. The adorable cloud and raindrop print made the extra thick diapers all the more humiliating to wear.

“I think you should get these,” Rumble chirped, holding up the package of diapers.

“Th-those?!” Thunderlane choked, “b-but no no...I just need, like, plain old white ones.”

“But these would look so much cuter!” Rumble answered, “like a real foal’s.”

“No way!”

“As your big brother, I want you to get these!”

Thunderlane winced for a split second before agreeing. “...Okay...” He took the package of diapers out of Rumble’s hooves, blushing heavily as he did.

Rumble wore a big, smile on his face, proud of his work. He happily skipped beside his embarrassed brother as they journeyed back to the front of the store where a line of cash registers waited.

On this quiet afternoon, the two ponies didn’t have to wait long for a cash register to become available. Not wanting to waste any more time holding the package of diapers, Thunderlane jumped in the moment he could.

A light brown teenaged pony could be seen passively leaning behind the register’s counter. Her agitated disposition clearly reflected that she didn’t quite want to be here. Even though it was her job, it seemed to ruin her day seeing the two ponies walk up to her with the package of diapers.

She watched the large package of diapers slowly run down the conveyor belt, likely knowing that they were much too big to fit Rumble. Whether this was true or not was tough to determine as she remained silent through the whole ordeal.

“Will that be all?” the adolescent pony asked with a raised eyebrow.

“Y-yeah...” Thunderlane answered, unable to even look the younger pony in the eye.

It was unclear whether the cashier was judging Thunderlane with her eyes or if that was just her normal expression. She bagged the package of diapers, handed Thunderlane his change, and then leaned back against the wall, all without another word.

Thunderlane gathered his bags and left the queue without another word. A constant glow of blush hung on his cheeks as he slunked out of the store with Rumble close behind.

Rumble walked with a pride and almost cocky trot as he left the store with his head held high. He practically had a bounce in his step as he followed Thunderlane back home.

His brother moved with a quicked pace, walking as casually, yet as fast as he could manage. He felt like every eye in Ponyville was on him. He became paranoid that everypony somehow had x-ray vision and could see through his shopping bag. The sooner he could get home, the better.

He burst through the front door once the two returned home. He made a mad dash to his bedroom and quickly hid the package of diapers in the back of his closet. He even made the extra paranoid step to cover the plastic package up with a few old winter jackets.

Rumble found his brother’s bashfulness a delight to watch. The usually confident and calm Thunderlane seemed to wear a permanent blush on his face when around his little brother. He watched Thunderlane shyly hide away his new night time garments, taking such care in the hiding place.

“Now remember, you can’t touch or change your own diapers. I’m your big brother so you gotta do what I say.”

“I won’t touch them,” Thunderlane parroted back.

“No matter how wet they get in your sleep, you keep your hooves off of them, okay?”

“No touching...”

Rumble did a little excited bounce. “Great!” he happily chirped, “then I think we can try them out now. Time for a nap.”

“What? But Rumble,” Thunderlane let out a childish whine, “it’s not even dark out! And I don’t need to take naps!”

“You need the shut eye. Too many nights sleeping in a cold, wet bed,” Rumble answered, “besides, we gotta figure out how absorbent your diapers are.”

“...nighttime underwear,” Thunderlane begrudgingly tried to correct.

“Sure, lil brother.” Rumble answered with a big grin, “whatever you say.”

Chapter Seven: Just a Walk in the Park

Big Rumble
Chapter Seven: Just a Walk in the Park
By Scribe Feather

✶✶7✶✶

The humiliation of being exposed as a baby to his friends left Thunderlane in a vulnerable state. Rumble took this time to further his treatment. With such a fragile ego, Thunderlane proved to be quite susceptible to more hypnotic suggestion.

Rumble proceeded to add more hypnotic triggers to his brother's subconscious. It was nice to have his brother reduced to the status of little brother at night, but the young, adventurous colt wanted more.

“Are you comfortable, Thunderlane?” Rumble started one day, expecting no response as his brother slipped into another deep trance. “Good,” the colt grinned, “now you’ve been such a good little brother during the night, wetting the bed like a foal.” Thunderlane couldn’t help but nod, too far under the trace to notice how embarrassing it was to admit. “But little brother’s aren’t just little at night, they have little accidents during the day as well.” Thunderlane nodded in agreement. “Whenever you need to go during the day you will forget what the toilet is. You won’t have any idea what to do with that full bladder.”

Thunderlane mumbled something softly that sounded close to agreeing with his brother. He continued to stare blankly into space, eyes half closed. His mind had become rather susceptible to hypnotic suggestion after going through the process with his brother so many times.

“Now when I stomp my hoof you will wake up and get ready for the day,” Rumble continued, “I still need to pack your diaper bag.” He stomped his hoof and Thunderlane was quick to break out of his sleepy daze. The big stallion had no memory of the session, but now had a strong drive to gather his things for the day. He was hanging out with Flitter and Cloudchaser after all.

Rumble made it his responsibility as the older brother to pack a diaper bag for the trip. He filled an extra duffle bag they had lying around with various bits and bobs they might need. Diapers were one of the first things to be deposited into the bag, followed by wipes and baby powder just in case. He also had a few towels packed up just in case. After topping off the bag with a few more items, Rumble zipped it up and the two were off.

The two brothers journeyed out to the public park where Flitter and Cloudchaser were waiting. A thin stoney path cut through the extensive field of green with bunches of trees breaking up the area.

Cloudchaser was the first one to notice the other two walking down the path. “Hey Rumble, whats with the bag?”

Thunderlanes neck snapped to attention. The big stallion quickly looked over at his brother, color drained from his face as he looked at the other pony with pleaful eyes.

Rumble smirked and simply shrugged, “oh you know, just some supplies. Just in case.”

Thunderlane let out a sigh of relief, blissfully unaware of the inevitable.

“Supplies? You mean like...” Flitter’s words trailed off.

Rumble grinned. “Plenty.”

The park was certainly well populated for such a lovely day. Ponies dotted the large, grassy field, running and playing in the warm sunshine. Games of tag, hide-and-seek, and catch sprang up all around the group as they walked down the main park path. Occasionally one could spot a picnic blanket spread out on a shady part of grass where ponies enjoyed sandwiches and each other’s company.

For Thunderlane and the small group, all they had planned was a simple walk. This allowed them to catch up on things. It seemed like forever ago since he hung out with his friends Flitter and Cloudchaser and it was a pleasure to finally catch up. Topics moved seamlessly from one another, seeing no break in the conversation as the three enjoyed each other’s company.

Rumble kept quiet and trailed behind the group. He rolled his eyes in boredom as his brother oh so confidently talked with the mares. Occasionally he would sneak in a reference to Thunderlane’s recently developed bedwetting habits and Cloudchaser and him would have a good laugh about it. However, the clever and charismatic Thunderlane would blush, but quickly change the conversation to something else. That had to change.

About halfway through the large park, Rumble decided he had heard enough. He eyed the nearby public bathrooms and smirked to himself. “Hey does anypony need to go to the bathroom while we’re here?” he asked with ill covered smugness.

For some strange reason, Thunderlane needed to go all of a sudden. He needed to REALLY go! “I-I’ll be right back,” he said to the rest of the group, his legs subconsciously twisting together to fend off the bladder pains. “I have to...” Thunderlane’s words trailed off as simple concepts like ‘bathroom’ suddenly fled from his mind. His mouth hung open as he grew puzzled. What was he going to do again?

“Thunderlane? Thunderlane!” His brother’s voice shook him out of his daydreaming.

The stallion shook his head, “what?”

Rumble lowered his voice. “You’re...peeing.”

Thunderlane blinked for a moment as he realized his inner thighs were cold. His hooves now stood in a warm puddle that was definitely not there a moment ago. “Huh? How!?”

“Guess you had too much to drink,” Rumble shrugged with a hidden grin.

Cloudchaser held back a giggle as Flitter looked to the stallion with a quiet “aww”.

Thunderlane could hardly believe it. He could hardly fathom the world around him as his shocked and embarrassed mind fixated on the large, warm puddle of urine that soaked his hooves. He felt so little, so embarrassed, the least amount of mature he had felt in a long time.

Rumble let out an exhausted sigh, “come on. I have towels in my bag.” He pulled the older stallion away from the giggling mares. He slung Thunderlane’s makeshift diaper bag over his shoulder as he led his brother away by the hoof.

The two slipped into the small concrete building that outcropped among the grassy plains of the park. The simple, rectangular building had two doorways leading to ‘Mares’ and ‘Stallions’ as the signs outside directed.

Thunderlane avoided any eye contact with the other stallions in the bathroom. It was bad enough that his hooves smelled faintly of urine, but now his little brother was ushering him around like a bodyguard. Rumble didn’t seem all that phased by the occasional glare that the two got from a passing pony. They slipped into a big stall and Rumble went right to work.

“I’m not gonna take you anywhere if you keep making a mess of yourself,” Rumble exclaimed, plopping his bag on the ground and unzipping the main zipper. He made sure to say it all loud enough for other ponies to hear.

“I-I don’t try to!” Thunderlane whined, ears ducking down as his face flared up with embarrassment.

“Mhmm,” Rumble dismissed as he used a fluffy towel to soak up the urine that clung to his brother’s fetlocks. “Might be high time you wear diapers during the day too,” Rumble suggested with a shrug.

The suggestion made Thunderlane’s face simultaneous become pale with fear and flare up in embarrassment. “There’s no way I’m wearing diapers in public!”

“You don’t want to have another accident, do you?”

“Well...no, but that was just an-”

“An accident,” Rumble finished, “but do you really wanna keep making puddles in front of the girls? All the time?”

“I...well...” Thunderlane’s ears drooped as he finally put two and two together, “no...”

Rumble smiled, “good.” He pulled out one of Thunderlane’s night time diapers. “Then hold still.”

Meanwhile the two mares stood outside the public bathrooms and waited. Cloudchaser was noticeably antsy, struggling to stand still as they were forced to wait on the two brothers. Flitter, on the other hand, continued to watch the doorway leading to the stallion bathrooms. She watched like a concern babysitter, waiting for their charge to come back from using the big boy potty for the first time.

After only a few short minutes, Rumble could be seen exiting the building. Behind him walked a shy Thunderlane. Rumble held his head high all proud and responsible like while Thunderlane just didn’t want to be there anymore. The big stallion walked with his head low, his tail and wings doing their best to cover up the thick diaper that now crinkled around his waist.

Although Flitter was first to notice the stallion’s change in attire, silently ‘aww’ing at the adorable sight, Cloudchaser was the first to say something about it. She loudly laughed, “wow! ANOTHER diaper? Your brother’s turning onto a real diaper baby, huh Rumble?”

Thunderlane grumbled as he was being talked about like he wasn’t there.

“Well he shouldn’t be any issue now. That diapers really absorbent,” Rumble grinned as he gave Thunderlane’s diapered rump a light pat. “Plenty of extras too so we should be good for the rest of the day.”

The notion made the two girl’s eyes light up. They took a step back and started whispering amongst themselves. A quick jabber sessions was all the two mares needed before they turned back to the two brothers.

“Well since he won’t mind being out all day,” Cloudchaser started.

“Could we go and get him some new clothes?!” Flitter squealed with a hop. “He’d look so cute in some new clothes!”

“I think he could do for some new clothes,” Rumble smugged, “what do you think, Thunderlane?” The young colt looked up at his diapered brother.

Thunderlane was much too self conscious about the ponies around them to notice a word. He was too busy looking around the group as they just casually stood there in the middle of the park path.

“Thunderlane!” Rumble called out for his brother’s attention.

“What?!” Thunderlane jumped a bit as he broke out of his nervous trance. “Uhm...fine. Whatever. Can we just get out of here? Please? Ponies are staring”

“What’s to be worried about? Are you wet already?”

Thunderlane’s head snapped back as he squeaked out an embarrassed, “n-no!”

“I bet the diapers wet already,” Cloudchaser smirked as she tilted her head.

“My diaper’s not wet!!” Thunderlane’s voice squeaked again as he used his wings to cover the thick diaper from sight.

“Then we’ll have plenty of time to get you adorable new clothes!” Flitter chirped with a happy flutter of her wings. “Something cute for you to wear that's easy to take off for diaper changes. Like a sailor suit!”

“Or a ballerina outfit!” Cloudchaser quipped.

“Or feetie pajamas!” Flitter added.

The two got more and more excited and energetic with each new suggestion. Quite quickly the two became ecstatic with the idea, eagerly pulling the other two along for the ride.

Their journey led them to the Carousel Boutique, Ponyville’s esteemed tailor and dress maker. If they needed custom clothes made, the ponies knew that Rarity would be able to help.

The boutique was rather quiet inside with no customers in sight. Ponies were much too busy enjoying the sunshine to be hold up inside for dress fittings or to look over sketches. The bell over the front door cut through the silence of the building like a bolt of lightning.

Rarity poked her head out from the back room. “Oh hello!” she happily chirped, trotting into the room. “Welcome to Carousel Boutique, where every garment is chic, unique, and...” As she closed the space between her and the other ponies, Rarity’s eyes locked onto the thick diaper that loudly crinkled between Thunderlane’s back legs. “I uhm...w-what can I do for you today.”

“We wanted to get this adorable stallion some custom clothes,” Flitter was the first to speak up, cheerfully hopping to Thunderlane’s side with a smile. “His wardrobe is rather lacking.”

Rarity stood frozen, only being able to blink at the sight. As Flitter went on, it was obvious that these ponies weren’t kidding around. After a few minutes of silence, Rarity finally spoke. “I’ll just need to take some initial measurements to compensate for his...extra clothing,” Rarity cleared her throat uncomfortably. With a glow of her horn a yellow measuring tape rushed onto the scene.

Thunderlane bashfully looked at the ceiling as the task began. It seemed to have been the only place he could look that wasn’t a constant reminder of what was transpiring.

Rarity seemed just as embarrassed about his ordeal by proxy. Measuring his hoof size, neck, and head was one thing, but she hesitated every time she came close to his thick diaper. She took the proper measurements, the inseam and the waistline, as professionals do, but she did it with a slight cringe and a craned neck as if touching the diaper somehow made her hooves burn.

As he was subjected to a rather invasive measuring session, Thunderlane tried to distract his mind. He continued to stare at the ceiling, hoping that the pink and lavender colors would somehow entertain his embarrassed mind for a little longer. Sadly there wasn't much to look at so he did his best to occupy his mind. He tried to forget that he was in a diaper and currently being poked and prodded by Rarity. Amongst the various thoughts that tried to occupy his brain space, an idle thought in the back of his mind suggested he should use the bathroom soon.

The thought of using the bathroom, however, was quick and fleeting. The moment it entered the diapered stallion's mind, his body had already set things into motion. Thunderlane felt the color drain from his face as a warmth began to dribble into his diaper. He tried to stand absolutely still as if moving would somehow make his big accident get noticed. He cringed as he felt the urine creep through his diaper, swelling up the padding in it’s wake.

Rarity’s measuring tape was running along Thunderlane’s diapered inseam just his bladder loudly swelled up the diaper. The moment she caught a glimpse the growing yellow spot of urine her hooves instinctively coiled back.

“Uh! Maybe we should take a break and gather ourselves,” the white unicorn hastily said as she took a step away from the diapered pony who was still in the middle of wetting himself.

With Rarity gone, Thunderlane’s legs instinctively started to squeeze together as a failed attempt at fending off the rest of the leaking urine. "Oh no! No no no!" Thunderlane exclaimed in a panicked whisper.

Rumble tsked and rolled his eyes. His older brother was helpless without him. “Don’t worry, bro. I brought extras right here.” He patted his bag for emphasis. He then turned towards Rarity who was still stunned at the diapered stallion. “Would you mind if I changed him before we started again? It’ll only take a minute.”

“I...Suppose,” Rarity blinked, too busy with conflicting emotions to properly comprehend what was unfolding in front of her.

“Come on, lil bro,” Rumble said as he took Thunderlane by the hoof. The bigger stallion obediently followed along. Rumble guided his brother to the far side of the shop, setting up supplies near the farther walls.

Thunderlane was well attuned to the routine by now. The moment he saw Rumble spread out the changing mat he laid on top of it without question. His face remained red throughout the whole thing as his eyes refused to look up. He could feel the mares on the other side of the room staring at the whole thing.

“Good thing you got such a responsible big brother,” Rumble commented, pulling out a container of wipes, powder, and a fresh diaper.

Thunderlane gave his brother a quick nod of acknowledgement, but wished he’d hurry up. Whenever he wasn’t keeping his eyes closed from the embarrassment, the diapered stallion tried to distract himself by staring up at the vaulted ceiling.

Rarity did her best not to stare. She tried to keep herself with idle tasks around the shop, doing her best not to pay mind to the semi-public diaper change.

It was unclear how long the unicorn had been standing there, but when the diaper change finally concluded Rarity shook her head and broke away from the spectacle. She tried to shake off the moment with a clearing of her throat. “Yes well. Uhm. If you would please stand up on the stage here we can start tailoring some clothes”

Thunderlane scurried up onto the stage, his face a permanent shade of red.

“So uhm...what did you have in mind?” Rarity said, almost afraid to ask.

“Something cute to start off!” Cloudchaser exclaimed.

“A sailor suit!” Flitter added.

“A sailor suit? Sure that can be doable,” Rarity answered, “I already have patterns for a foal’s sailor costume. So all I have to do is just...make it bigger...Anything else?” She cringed at the last question, worried if it might get worse.

Thunderlane could hardly make out the mares’ conversation, but he knew it couldn’t be good.

It was unclear how long Thunderlane stood there on the stage with his diaper view to the entire world. Various fabrics drifted over his body as Rarity used countless needles to hold her place.

Eventually, after hours of standing and having his body measured and clothed over and over, the group finally departed. Flitter carried out a whole slew of clothing boxes, each containing different cute outfits for Thunderlane to wear. If she had her way, he would have left the place wearing one.

The sun was beginning to set when the group left the Carousel Boutique. Rumble was kind enough to suggest that they all head back home and have some ice cream. Rarity was nice enough to insist she had too much work to do.

Thunderlane was more then eager to get out of the place and back home. At least he could hide safely back home. The diapered stallion practically led the group back home, ears ducked down and eyes darting from one direction to the next as they briskly made it back home.

"Alright, Thunderlane," Rumble said as he let the makeshift diaper bag plop down by the door. "Bed time."

The very idea made Thunderlane's head snap to attention, "what? But I thought...the ice cream..."

“Straight to bed with you, Thunderlane,” Rumble said.

The older pony glanced at his soggy diaper and then to Flitter and Cloudchaser. Lowering his voice and head closer to his brother first he meekly whispered, “b-but I...my diaper?”

“Off you go!” Rumbled shooed.

“Here Thunderlane, Ill help you into your new jammies,” Flitter smiled, giving Thunderlane’s diaper a reassuring pat. “And a dry diaper.

“Night night diaper pants,” Cloudchaser laughed.

Thunderlane grumbled something under his breath as Flitter guided him up the steps. The stallion had a distinct waddle in his gait as he navigated the steps.

“Sorry about all this diaper business,” Rumble started, “I don’t know what’s come over Thunderlane lately.”

“I don't mind it as much as I'd think I would," Cloudchaser shrugged, "Flitter’s always going on about how cute he looks in his diapers and how dependent he is on others. I guess I just feel sorry for him, wallowing around in a wet diaper all day.”

“He is kinda hopeless when it comes to his diapers,” Rumble nodded, “you thinking you two can keep an eye on him when I’m not around?”

“You mean like babysit?”

“Thats one way to put it.”

“I’m sure we could! I know Flitter would enjoy that.”

“Then it’s a deal!” Rumble smiled.

Chapter Eight: Now With A Rabbit

Big Rumble
Chapter Eight: The Babysitters
By Scribe Feather

✶✶8✶✶

Some time passed after that rather embarrassing trip to the tailors. During this time the two brothers got more and more into their roles, finding the fit strangely appropriate. Rumble would occasionally put Thunderlane under a trance to refresh some things, but for the most part he was happy to see how far his brother had come.

Now Thunderlane wore diapers to bed every night and woke up wet just about every morning. Diapers were still incredibly embarrassing for the stallion to wear, something his old mind set still held true no matter how many hypnotic suggestions worked their way into his subconscious. Diapers were part of his regular attire during the day as well, there was very little times he wasn’t wearing a diaper.

And Rumble was there to change his brother whenever the need arose. Sometimes he would feel rather lazy and give Thunderlane the command that allowed him to change himself. These self diaper changes were very very rare and were never something Rumble would want to make a habit. The last thing he would want is for Thunderlane to understand he could take care of all his baby stuff on his own.

It was a difficult thing to do, to change his brother’s diaper every day, but Rumble enjoyed it most of the time. The control and authority he had over his older brother was worth any amount of diaper changing he had to do.

Today however, was different. Today would be the first day Thunderlane was babysat by Cloudchaser and Flitter and, cleverly enough, Rumble failed to tell his brother. He figured it’d be worth the surprise and he’d be sure to get every juicy detail of the day from Flitter and Cloudchaser when he got back from school. Now all that was needed was to wait for the two mares to arrive for their first day on the job.

Rumble got an early start on the day and trotted around the house excitably. Strangely enough he didn’t mind waking up early for school. He hardly stressed out about it all. He was much too enthusiastic about what would happen while he was gone.

He made sure everything was in place for the two sisters’ arrival. He double checked Thunderlane’s room to ensure the stallion was still sleeping soundly and that his package of diapers were proudly put on display out in the open. He made sure the place was clean and that everything was in place. Finally, as a last detail, he pulled out his blue pocket watch and place it on the living room coffee table.

As if on cue, there was a knock on the door followed by the sound of it opening and two ponies walking in.

“Hello? We’re here!” Flitter’s voice could be heard as the front door closed.

"Right on time!" Rumble chirped as he hopped off the couch to greet the two mares.

Flitter happily smiled down at the young colt as Cloudchaser just gave him an acknowledging nod. “Good morning, Rumble,” the mare chirped, “ready for school?”

“Oh yeah, I was just about to leave,” Rumble answered, "why don't you two have a seat. I wanted to discuss a few things before I left for school."

Cloudchaser and Flitter thought nothing of it as the innocently sat on the couch as the colt trailed off elsewhere. Rumble quickly grabbed the pocket watch and dangled it from it’s chain in front of the two mares.

“What did you want to discuss?” Flitter asked, her eyes slowly starting to stare at the swaying pocket watch more and more. Cloudchaser mirrored her sister’s movements as well.

“Just a few things before I leave ya,” Rumble answered with a casual shrug, “you know like where all the food is, emergency contacts, Thunderlane’s diapers...”

By the time Rumble finished off his passive list, the two mares had already fallen under a trance. They lazily stared at the pocket watch with half awake eyes.

“Schools about to start so I’m gonna have to make this quick,” Rumble said mostly to himself as he noted the unresponsive blinks from the two mares. "Now Flitter,” he started, turning his attention towards the mare. “I'm happy to see how much you embarrass Thunderlane with your cooing, but I want to add to that." A twinge of excitement spurred from this anticipation. "Obviously he's an adult, but that doesn't mean you can't use babytalk and pinch his cheeks like a real foal," he continued, "just remember that he WANTS this stuff. He WANTS to wear diapers and all that foalish stuff..." Rumble grinned impishly, “you’re just here to quietly encourage it!”

Flitter just nodded in response, her eyes hardly leaving the pocket watch that continued to sway oh so gently from left to right. Rumble allowed the new commands to sink in before he turned his attention towards Cloudchaser. The other mare’s eyes seemed to snap to attention when he faced her.

"As for you Cloundchaser, I'm liking how you keep teasing my brother when you see him in his diapers. Let's do more of that," Rumble exclaimed excitably, "in fact, remember how he asked you out that one time? You found that hilarious right? Because you prefer mature stallions, not diaper wearing colts." He couldn’t stop smiling as he continued, "he might try his moves on you again, but just remember how funny he looks in those diapers."

Much like her sister, Cloudchaser nodded once Rumble had finished, confirming that his suggestions stuck.

“Excellent!” Rumble grinned, tucking the blue pocket watch under a wing. “Now get ready to snap out of it at the sound of my hooves. Ready?” Rumble paused for a moment, looking over at the two mares who continued to stare blankly into space. He loudly clopped a hoof against the floor snapping the two out of their trance.

The two sister squinted, rubbing their temples as they slowly climbed out of the hypnotic daze. Their minds, foggy at first, required a moment or two to clear up. Sights and sounds were a bit blurry as reality slowly came back.

Rumble smiled, "like I was saying, could you pick me up after school, Flitter?"

Flitter shook her head to get rid of the foggy daze, "oh...y-yeah sure. I can do that."

"Great!" Rumble chirped as he grabbed his school bag. "Well then you two have fun! Thunderlane should still be upstairs sleeping. He'll probably need a diaper change by now. Let me know if he gives you any trouble.”

“He shouldn’t be any trouble at all,” Flitter answered warmly.

“See ya later!” Rumble called as he trotted out the door. For the first time ever, he found himself running to school, figuring that the faster he got there, the faster the day would be over with. He was excited to see what would become of his diaper wearing brother.

That left the two sisters in charge of Thunderlane whether he liked it or not. Flitter and Cloudchaser walked into the kitchen to rustle up something to eat. Flitter went right to work, digging out a selection of pots and pans for cooking. Ingredients like eggs, milk, and flour were also gathered into a pile on a countertop. She turned her head only slightly from her project to talk to her sister. "Could you grab Thunderlane while I make breakfast?"

"Yeah sure," Cloudchaser chuckled, "I'll go wake the baby up."

As Flitter toiled away in the kitchen, Cloudchaser trotted up the stairs. She quickly found Thunderlane’s bedroom, only a door away from the bathroom, which she found hilariously ironic. His bedroom was contrastingly adult despite the package of diapers that sat in clear view on the dresser.

Thunderlane slumbered soundly in his warm bed. A blanket laid sloppily across his body, hardly covering up the thick nighttime diaper that was taped around his waist. The diaper had grown quite swollen and yellow from a night's worth of soaking. Nestled in the crook of one of his forehooves rested a fluffy pink rabbit plush dressed in a frilly little dress that was held oh so delicately in his grip.

Cloudchaser snerked at the sight. What a baby! "Hey! Wake up, baby pants. It's breakfast time!"

Thunderlane needed a few nudges to even try and respond. He mumbled something in response, hardly realizing that Cloudchaser was in the room. He slowly turned himself around, taking his time with it as his eyes lazily blinked awake. He moved around onto his back, sleepily staring up at Cloudchaser. When he finally realized she could see his diapers, his eyes grew wide as color drained from his face.

"Wh-what are you doing in here?!" he exclaimed, hastily grabbing at whatever blankets he could to cover up his bottom half.

"You mean Rumble didn't tell you?" Cloudchaser smirked, "me an' Flitter are here to babysit you."

Thunderlane frowned at the answer, "babysit? I don't need b-babysitters."

"No?" Cloudchaser scoffed before giving Thunderlane's soggy diaper a few firm pats. "Your bedwetting says otherwise." The stallion blushed heavily, curling up in embarrassment and pulling the rabbit plushie close to his chest. He didn't even try arguing that point. "Now come on," Cloudchaser continued, "Flitter's got breakfast waiting for us downstairs." As an added bit of encouragement, she forcefully tugged the blanket off of Thunderlane's bed, fully exposing his diapered state.

Thunderlane could hardly react fast enough. Once fully exposed, he instinctively gasped, curling up and hugging the pink bunny plush even closer to his chest. He paused for a moment, silently hoping Cloudchaser would leave his room or turn around orsomething that would give him some privacy, but the mare didn't budge. Reluctantly he pulled himself out of bed, his back legs bowing out to cope with the swollen padding in between.

“Hurry up,” Cloudchaser said with a wave of her hoof, “don’t want the food to get cold.”

Thunderlane paused, his back legs shyly closing a bit. “A-aren’t you gonna...you know, change me?” He meekly asked.

“Not if I can help it,” Cloudchaser answered, “the fewer baby diapers I have to change, the better.”

That answer seemed enough for Thunderlane, even if it wasn’t the one he was hoping for. The diapered stallion grew silent and lowered his head. He didn’t bother trying to ask again. He held the bunny plushie close, to which Cloudchaser chuckled and rolled her eyes. He didn’t know why, but he just didn’t want to let go of the rabbit, maybe a few more minutes.

The two ponies made their way back downstairs where sugary scents already wafted about. Noise of sliding plates and clanking pans could be heard from the kitchen as Flitter worked away.

Thunderlane’s entrance was loudly announced by the constant crinkling that came from his thick nighttime diaper. Flitter responded in kind, turning away from the fiery hot stovetop.

“Good morning, Thunderlane!” Flitter cheerfully sang.

“G-good morning, Flitter,” Thunderlane replied much less enthusiastically.

“Did you sleep well?” Flitter asked.

“Uhm, y-yeah,” Thunderlane replied, his tail instinctively swooping to the side to cover up his yellow diaper. “I-I slept alright...”

“He’ll probably need a diaper change too,” Cloudchaser chimed in, much to Thunderlane’s embarrassment, “that things absolutely soaked!”

Flitter craned her head around to fully glance over Thunderlane’s diaper, “hm, yeah, I suppose you’re right. But there’ll be plenty time for that after breakfast!”

“B-but I-” Thunderlane tried to say, but was quickly cut short.

"Oh my gosh, Thunderlane," Flitter exclaimed looking at the pink rabbit nestled in Thunderlane’s hooves, "who's your little friend?"

"Fluffy BunBuns!" Thunderlane blurted out, startled by how ready he was with the answer. "She's my favorite toy and I can't sleep without her!" He said the lines with such preparedness like he had repeated the line a hundred times before. Unbeknownst to him, the fluffy pink bunny was planted by his younger brother. Rumble had already worked a few extra suggestions into Thunderlane's hypnosis. Now the grown stallion saw the pink rabbit as his sleeping companion and couldn't go a night without her. His mind was filled with false memories about the countless nights he spent sleeping with her.

"Fluffy...BunBuns?" Cloudchaser repeated with an obnoxious laugh, "you actually named that pink thing?!"

"That's a wonderful name," Flitter interrupted, "I bet you and Fluffy are ready for some breakfast."

"Mhmm," the stallion meekly nodded, waddling further into the room.

Flitter was nice enough to pull out a chair for Thunderlane, even going as far as to pulling out a chair for the rabbit plushie as well. Cloudchaser couldn’t help, but laugh as Thunderlane gently placed his rabbit plushie delicately in her seat, adjusting her little pink dress before sitting himself down..

Thunderlane blushed as his soggy diaper loudly squished against the hardwood chair. His head remained low as he occasionally stole a glance up at Cloudchaser who continued to snerk at the sight.

“I hope you’re hungry,” Flitter chimed in, “I made my famous chocolate chip pancakes.” She promptly slid a plate of pancakes in front of Thunderlane, three delicious looking discs of batter lightly dressed in syrup and topped with partially melted butter.

Thunderlane licked his lips and quickly picked up his fork. He only managed to get as far as sticking his fork into the small stack before he heard Cloudchaser chime in.

“Do you need one of us to feed ya as well?” The mare smirked, cuasing Thunderlane to look up.

“I-I can still feed myself,” Thunderlane weakly responded. He noted the stack of pancakes that sat in front of Cloudchaser. Just plain ones for her, with some blueberries on top, a healthier, more “mature” looking dish then Thunderlane’s.

“You sure you don’t want a bib first?” Cloudchaser joked again.

“I don’t use a bib!” Thunderlane firmly exclaimed, involuntarily squeaking when he did.

“Now now, Thunderlane. No need to get fussy,” Flitter called out from the stove, “she’s just watching out for you.”

Regardless, Thunderlane dug right into his meal, undeterred by Cloudchaser’s snarky comments. The pancakes were fluffy and practically melted in his mouth. There seemed to be just the right amount of chocolate chips in each bite he chewed.

Flitter joined the other two at the table with her own plate shortly after. However she hardly dug through her breakfast, much too busy awing at the adorable Thunderlane who continued to eat his food.

Thunderlane invested much of his concentration in proving Cloudchaser wrong. Just because he wore diapers, didn’t mean he was a complete foal. Sure he had babysitters watching him and had a newly expanded wardrobe of baby outfits, but he could feed himself. Feeding himself was easy!

“Thunderlane!” Flitter’s voice suddenly barged into his headspace, shaking Thunderlane out of his thoughts.

“Wh-what?” Thunderlane looked up confused.

“Were you listening?” Flitter replied.

Cloudchaser smirked, “probably too distracted with filling up those diapers to pay attention.”

Thunderlane pouted and quickly went on the defensive. “O-of course I was paying attention!”

Flitter binked for a second, momentarily acquiring the same expression a mother would when catching their foal in a lie. “Well okay then,” she simply said, “do you want to after breakfast?”

“U-uhm...y-yeah sure yeah,” Thunderlane quickly answered before turning back to his breakfast. He had a quick panic attack as he finished his pancakes. What did he even agree to?

Throughout the remainder of breakfast, Thunderlane couldn’t shake the worried thought that hung in his brain. It was certainly not something big enough to take away from the delicious chocolate chip pancakes, but it was predominantly enough to hang around in the back of his mind.

Breakfast wrapped up without issue. The three ponies finished their meal one by one with Thunderlane, interestingly enough, stopping last.

“Delicious stuff as always Flitter,” Cloudchaser exclaimed, leaning back in her seat with a satisfied pat on her belly.

“Thanks, Cloud,” Flitter answered in kind, “did you enjoy your pancakes Thunderlane?”

“Oh! Y-yeah, I did,” Thunderlane quickly answered after swallowing the last of his breakfast.

“Suppose we should change you now,” Flitter commented, standing up from her seat.

“I got dishes!” Cloudchaser quickly swooped in, grabbing the plates and forks off the table and stacking them by the sink. “I can handle clean up. YOU can get diaper duty.”

Flitter smirked with a little shake of her head. “Yeah alright. I’ll do it.” She then turned to Thunderlane, motioning towards the door with a hoof. “After you, Thunderlane.”

Thunderlane blushed as his head instinctively lowered a tiny bit. He quickly began scurrying off towards the upstairs steps.

“Uhm, Thunderlane?” Flitter called out, causing the diapered stallion to turn back around. She held his pink rabbit plushie up in the air, wiggling it a bit to call attention to it. “You forgot Fluffy.”

Thunderlane swiftly retrieved his sleeping buddy. How could he have been so foolish? He almost left Fluffy Bunbuns all alone in the kitchen!

With his plushie in tow, Thunderlane waddled back up to his bedroom. He lead the way for Flitter who followed close behind, likely getting an eye full of his soggy and swollen diaper butt.

Flitter took control of the situation once they entered the room. She made a beeline for the open package of diapers that still stood in broad daylight on top of Thunderlane’s bedroom dresser.

“Lay on down for me, will you?” Flitter said, holding one of Thunderlane’s diapers in her hooves.

Thunderlane nodded and complied. He slowly lowered himself down to the carpeted floor, too embarrassed to point out that those were his nighttime diapers and were unnecessarily thick for the day.

Flitter gathered some wipes and baby powder, items that were easily found in the dresser’s top drawer. Thunderlane could only stare up at the ceiling in embarrassment as Flitter kneeled down close to his crotch. He flinched a tiny bit as she started to pull at the tapes that only barely strained to hold the swollen padding together.

Flitter handled the task professionally and, much to Thunderlane’s embarrassment, like a mundane task like changing a light bulb or doing laundry. She changed his diaper so casually, undeterred by the stallion’s growing embarrassment.

The diaper was opened up and rolled up into a ball with little issue, only sparking even more blush to grow on Thunderlane’s face. Cool, scented wipes cleaned up the area, delicately wiping up whatever residual urine had clung to Thunderlane’s crotch. He now resorted to covering his face up with his plushie, too shy to even look at Flitter. Baby powder was generously added, sprinkling the area with a thin white sheet. And before he knew it, a fresh diaper was slipped under his butt and taped around his waist securely.

“That takes care of that!” Flitter called out, marking the end of the diaper change.

Thunderlane couldn’t help but exhale a sigh of relief. Despite how embarrassing the diapers were, nothing beat the feel of a fresh diaper. He had to pause a moment or two as the world fell away around him because of the feeling. A new diaper after spending so long in a soggy one was oddly pleasurable and, in a strange way, looked forward to.

“You’re going to have to stand up if you want me to put this on you,” Flitter’s voice was suddenly heard.

“W-what?” Thunderlane’s head snapped to look up at the mare.

Flitter stood over him holding an outfit from his closet. Hung on a big plastic hanger dangled the embarrassingly adorable sailor suit he was fitted in the last time he was in the Carousel Boutique. The outfit was design with cuteness and convenience for the caretaker in mind. It’s clean cut, white fabric was complimented well by the blue pants and necktie. Sturdy, metal snaps lined the inseam to open up for easy diaper changes. At this point it was practically a costume for toddlers and merely a sailor suit by name alone.

“Stand up so I can dress you,” Flitter said, wagging the outfit in front of her. “I don’t want to ruin your new sailor suit trying to dress you up on the ground.”

“Dress me up?!” Thunderlane squeaked.

“Of course,” Flitter answered, “you said you wanted to.”

“But I DON’T wanna!” Thunderlane replied with an immature whine.

“Now Thunderlane,” Flittered answered, a bit firmer and sterner this time, “bad boys refuse to get dressed when their babysitter tells them to. Are you a bad boy?”

“No...” the stallion said meekly, almost sounding like a child at that point.

“Good, then stand up,” Flitter said firmly. She patiently waited for the diapered stallion to pull himself off the ground. Thunderlane desperately tried to move as slow as possible in one last effort to stall.

Flitter went right to work once Thunderlane was ready. She handled each piece of the outfit with delicate hooves, ensuring each seam was straight and the sides were even. Thunderlane’s diapered flank was covered up almost instantly by the first layer of the outfit. Snap by snap, the crotch was slowly closed up around the diaper that loudly bulged the back of with its bulk. And just when he thought it was over, Flitter topped off the outfit with an adorable sailor hat that she pulled out of nowhere.

“Aw, don’t we just look ADORABLE!” She cooed and squealed.

“Yeah I guess...” Thunderlane replied with slumped shoulders.

Now freshly dressed up in his new embarrassing getup, Thunderlane looked himself over in the full body mirror. He cringed at the sight, almost too embarrassed to even look at himself. The sailor suit made every inch of him look like a foal and seemed to amplify the bulky bulge of his thick diaper.

“There’ll be plenty of time to stare at your cute little butt later, Thunderlane,” Flitter chimed in, stepping in the way of Thunderlane and his reflection. “I want Cloudchaser to take a look at you and then you can play with some of your toys. Does that sound nice?”

She didn’t wait for an answer and simply gently ushered Thunderlane out of the room. Thunderlane walked stiffly back downstairs, waddling with loud crinkles in each step.

Cloudchaser was already lounge on the couch, lazily sprawled across the furniture. Her ears perked up as she looked towards Thunderlane when he reentered. She started to laugh almost immediately. "Wow, Thunderlane! Great outfit," she found the sight absolutely hilarious.

"He looks adorable, doesn't he?" Flitter cooed, adjusting a seam on Thunderlane's suit, "he was practically BEGGING me to put him in it! And now I can see why!"

“Begging, huh?” Cloudchaser laughed, completely convinced, “well just hope the baby’s diaper doesn’t leak and ruin his new clothes.”

Thunderlane let out a fussy sound as he pouted a tiny bit at the teasing. It’s not like he actually WANTED to wear this stupid costume.

“We’ll keep a close eye on him,” Flitter answered, patting Thunderlane on the rump. “Now why don’t you sit down on the floor and play. I brought some toys over so you wouldn’t be bored.”

Thunderlane waddled closer to the middle of the living room where a collection of toys laid scattered across the floor. The selection ranged from big plastic building blocks to soft toys made entirely out of plush, all of them brightly colored and bulky in size.

“I wasn’t sure which ones you’d want to play with so I borrowed a variety from our aunt’s,” Flitter explained.

“She’s got a toddler too, dresses him up in little sailor suits just like you. Diapers are a little smaller on him though,” Cloudchaser decided to add with a teasing tone.

“I think you’re cuter though,” Flitter cooed, “have fun!”

Thunderlane was gently guided into a sitting position near the center of all the toys. Flitter and Cloudchaser seated themselves on the couch, quickly finding means of entertainment to occupy their time.

The diapered stallion shyly picked up one of the building blocks. He didn’t want to play with any of these childish toys, but he surely wouldn’t be able to do anything else until Rumble came home. He was determined to keeping his diapers dry. He didn’t want to give Flitter and Cloudchaser the satisfaction. He only hoped that he’d be able to hold it in.

Chapter Six: Friends With Babysitters

Big Rumble
Chapter Six: Friends With Babysitters
By Scribe Feather

✶✶6✶✶

Rumble actually enjoyed the dependence his brother had on him. After so many years of being the little brother, he grew to like having his brother reliant on him to change his diapers. Every morning Thunderlane would wake up wet and every morning Rumble would be there at his bedroom door with a tub of scented wipes.

At first Thunderlane was understandably humiliated by the thought of having his brother change him. It took a lot of persuasion from Rumble to even get him to lay down during the beginning nights of his diaper wearing.

Of course the clever Rumble countered any argument of Thunderlane’s with a firm, big brother voice. He was always quick to reason with his ‘little brother’, using the same logic he remembered Thunderlane using on him when he was younger.

Things were rough and a lot of what Rumble tried to do led to an argument, but Thunderlane eventually learned to settle into his little brother role. Rumble took control of his nightly routine, telling the bigger stallion when it was time to get ready for bed or brush his teeth.

As grown up and mature Thunderlane claimed to be, Rumble’s interruptions were always responded with a childish groan or fussing. Slowly but surely he was slipping into his little brother role quite well.

“Good morning, little brother!” Rumble called out one morning as he swung Thunderlane’s bedroom door open. He flooded the room with daylight, making the older pony groan.

Thunderlane grumbled something under his breath and pulled a blanket over his head.

“How’s your diaper?” Rumble asked as he tossed aside a section of Thunderlane’s bedsheets.

“Absorbent underwear...” Thunderlane begrudgingly grumbled.

Rumble smirked and ignored the statement. He was so much better at checking Thunderlane’s diapers anyway. A single hoof pressed into Thunderlane’s nighttime diaper, causing a chorus of squishing to sound off. Most of the little wetness indicators had all but disappeared, tinted yellow from a night’s worth of soaking.

“Completely soaked!” Rumble exclaimed, “again.” He then proceeded to pull the blanket completely off Thunderlane’s bed, exposing his brother in all his padded glory. Thunderlane grumbled some more, curling up in a ball to fend off the rush of cool morning air. “Well come on, little brother. I’m not going to let you sleep all day.”

Thunderlane grumbled some more and rolled out of bed as lazily as possible. He rubbed his eyes and let out a big yawn. The first thing on the older stallion’s mind was to rid himself of the cool, clammy feeling diaper that hugged his waist. He let the offending, urine soaked diaper lay where it fell.

“Thunderlane,” Rumble interjected, “that’s not where we put our wet diapers.”

Thunderlane grumbled something in response, pivoting around, and grabbing his rolled up diaper. The garment was tossed into a nearby diaper pail and Thunderlane quickly looked away and scurried out of the room. He could never quite accept the diaper pail in his room, too embarrassed to even admit it was there. He would avoid looking at the bright blue plastic object too shy to think about the number of his diapers that sat inside.

Thunderlane was still his usual self during the day. Without the embarrassment of wearing diapers bogging him down, the stallion was as charismatic as always.

During the day Rumble had very little power over his brother. Without his diapers to remind him of his place, Thunderlane was confident enough to retain his big brother mentality. Unable to do much about that, Rumble was forced to wait it out.

Thunderlane defaulted to his old ways any time he could. He would still laze about his responsibilities, going to great lengths to avoid doing chores and tasks. He would spend a lot of his time during the day hanging out with his friends, Flitter and Cloudchaser.

Rumble was envious about this luxury. Between his own chores, school, and picking up Thunderlane’s slack, the young colt had very little time to do much else. Things were made even tenser when Thunderlane would bring his friends back home.

"Rumble, I thought you were going to clean the kitchen!" Thunderlane called out the moment he walked into the room. It almost seemed like he was doing it in front of Flitter and Cloudchaser on purpose.

"What? That was YOUR job!" Rumble’s voice squeaked at the injustice.

Flitter was quick to interfere before the two brothers could get into another argument. The mare cut in between the two, "don't worry, Rumble. I'll help you," She swiftly pulled the young colt out of room.

Rumble grumbled something under his breath, but reluctantly followed Flitter into the other room. If only Thunderlane was wearing a diaper. Then he wouldn’t have to clean the stupid kitchen.

"He always dumps all the chores on me," Rumble grumbled as his hooves dug into the soapy water filled with dirty dishes, "it's not fair."

Flitter tried her best to keep the colt happy. "Oh Rumble, I'm sure he means well."

"Nu-uh! I have to do EVERYTHING around here because he tells me to! I have to do the dishes, clean my room, changing his dia-..." Rumble's mouth slammed shut, stopping himself immediately. "I...I just have a lot to do..."

"Don't worry too much about it. You have me to lend a hoof."

"Lend a hoof," Rumble quietly repeated to himself as the comment made the wheels turn in his mind. "Hey Flitter, have I shown you my new pocket watch?"

Meanwhile Thunderlane lounged on the living room couch, happily chatting it up with Cloudchaser. He so casually relaxed, talking to Cloudchaser with confidence and flirty disposition.

“Does Rumble have everything covered in there?” Cloudchaser asked.

“Yeah, it’ll be fine. He’s use to having a chore or two to do around the house.”

“Ya sure? He seemed kinda ticked having to clean the kitchen.”

“He’s always such a baby about that stuff,” Thunderlane added, “one of these days we gotta get out alone sometime. Maybe Flitter can babysit.”

Cloudchaser smirked, “are you asking me on a date?”

“I guess that depends,” Thunderlane smirked back, “is that a yes?”

"Thunderlane!” Flitter interrupted, her voice calling out from the kitchen, “could you come in here for a minute!"

Thunderlane let out a quick sigh before hopping off the couch and trotting into the kitchen. Rumble had certainly changed his mood in the brief couple of minutes, now standing with a cocky smile. Flitter stood beside him holding up one of Thunderlane’s diapers.

"It's almost bedtime," Flitter started. “Let’s get your nighttime protection on.”

"Wh-what?! I-"

“I’d do what she says, Thunderlane,” Rumble chimed in, slipping the blue pocket watch out of sight. “Should always do what the babysitter says.”

“I’m not gonna ask again, Thunderlane,” Flitter said.

With his face filled with red blush, Thunderlane reluctantly laid himself on the cool kitchen floor. He could hardly look Flitter in the eyes, cheeks flushed with red.

Without batting an eye, Flitter changed him into his diaper with unusual skill. She taped up the thick, fluffy diaper with the accuracy of a well experienced babysitter. To her, it was like she had always been changing Thunderlane’s diapers.

Rumble was relieved he had thought of this when he did. Having Flitter doing the diaper changing meant he didn’t have to worry about it as much nor was he forced to let Thunderlane do it. Flitter was so much quicker with the task as well. In a matter of minutes, Thunderlane was taped up snuggly in his thick nighttime diaper.

“Now off you go to bed now,” Flitter said.

“B-but it’s not even dark out,” Thunderlane weakly protested, “and Cloudchaser-”

“Straight to bed, young colt.”

Thunderlane shrunk with his ears ducked down. Defeated and forcefully regressed by the scolding, he slunked out of the room.

In order to get to his bedroom, Thunderlane first had to work his way through the living room which meant going past Cloudchaser. The thought terrified the stallion, making him as hesitant as a toddler who was afraid of the dark. The moment he got halfway into the living room he was petrified, his eyes landed on Cloudchaser who still lounged on the couch.

Cloudchaser’s eyes instantly locked on the thick diaper that hung on Thunderlane’s waist. She covered her mouth in delighted shock. “What are you WEARING?!” Her hoof did little to cover up the loud giggles.

“I-I,” Thunderlane stumbled over his words as his tail meekly tried to cover up the large diaper. “N-nuthin!”

“Go on, Thunderlane,” Rumble appeared with an impish grin, “tell Cloudchaser why you’re wearing that.”

“I-I...I’m wearing my nighttime diapers because I wet the bed,” Thunderlane parroted the line as if it was a well rehearsed line in a script.

Cloudchaser snorted, doing her very best not to break out into uncontrollable laughter right there. “I can’t believe it! Has Flitter seen this yet?! Flitter! Come and see this!”

Moments later the other mare trotted out of the kitchen, entering the room with a confident pace. “See what, Cloudchaser?”

“Have you seen the baby’s new pajamas?” Cloudchaser snarked, motioning with a hoof towards the heavily embarrassed Thunderlane.

Flitter took a moment to look at the stallion’s diaper, but didn’t seem all that phased by it. “Yeah?”

“Don’t you think it’s hilarious that a pony Thunderlane’s age is wearing diapers?” Rumble added as his words shivered with stifled laughs.

It was then it finally clicked for the mare. After blinking for a moment, Flitter felt a slight twinge in her forehead before breaking out in a giggle fit.

It didn’t seem like Thunderlane’s cheeks could get any redder. “S-stop laughing!” His voice cracked as he shyly curled back, tail tucked between his legs in embarrassment.

“I think my brother’s just tired after a long day,” Rumble interjected. “I might have to make his bedtime earlier if he’s this fussy.”

“R-Rumble!” Thunderlane squeaked. His intention was to scold his younger brother for talking about him like he was a toddler, but with the diaper on, it sounded like an embarrassed child not liking his parents talking about him.

“We’ll have to continue this tomorrow, girls,” Rumble simply replied.

Cloudchaser smirked and let out another laugh. “Yeah alright, let the ‘baby’ take his nappy nap.” With that comment the cocky pony happily trotted for the main door.“Hey Flitter, ya comin’?”

Flitter looked to Cloudchaser and then to Rumble.

Rumble smirked, “go on ahead. I can keep an eye on the baby on my own.” He stood there like a proud big brother, “that’s what big brothers are for.”

Flitter quickly nodded before following her sister out. That left Rumble and the still blushing Thunderlane alone once more.

Thunderlane scowled at the door, but with the diaper on it looked like he was just pouting. “I don’t want those two over ever again.”

“Oh I think you’ll see them sooner than you think. They are your babysitters afterall.”

Thunderlane felt a sharp pressure in his temples before reluctantly nodded. “Yeah...I guess...I just don’t like it when they tease me about my diapers...”

“Well it is pretty funny to see you waddling around,” Rumble answered, quickly receiving a scowl from his brother. “What?! They’re gonna tease you about them! What did you expect would happen after you started peeing yourself?” Thunderlane didn’t say anything in response. He just quickly mumbled and grumbled. “Now it’s off to bed with you. You need your sleep.”

Thunderlane pouted for a moment, but reluctantly agreed.