“Hello?” a cerulean pegasus spoke, walking through the doorway of the boutique as his green eyes scoured the large mannequin filled room, searching for anypony that might be present. He swiveled his ears and adjusted his dark cobalt mane with one of his feathery wings to make himself a tad more presentable (in all honesty, he did it to quell his annoyance at a single strand he felt continued to spring out of place, no matter what he tried). White paint-like splotches covered his muzzle and his legs as if he were wearing stockings that blended well with his bulbous white padding that crinkled with each little motion he would make.

Mix-up continued to tread forward slowly, the wooden floorboards of the tailor’s shop creaking occasionally beneath him. The mannequins that he saw were organized around the shop within their own little open displays, all sporting iconic outfits with well-fitted neckties, vests, coats, and of course: diapers, encompassing a circular platform that was placed in the center of the shop with a small reception desk about five yards in front of it, near the store’s entrance.

He wasn’t quite sure what to make of it. Visiting from Cloudsdale, the concept of diapers as a fashion accessory was a tad strange to him. Apparently, it was also seen as a sign of independence to the ponies of the Padded Kingdom. Being free to go where you wanted—whenever you wanted. He disagreed, but found the diaper did make a nice cushion on his rump, especially on the bumpy train ride to the city.

“It doesn’t feel too bad, either,” Mix-up thought to himself.

He took another step towards the relatively plain reception desk. On it were a few rolls of string and a brass call bell, the bell being a tempting allure. He swiveled his ears one more time, before he lifted his hoof and softly tapped the bell.

Ding!

Suddenly, a cacophony of noises sounded off above him as if he had turned on a switch. Shouting and shuffling could be heard on the second floor as he gave an instinctive step back from the call bell and turned his gaze towards the stairs at the back of the room. Two mares came tumbling out into the main gallery of the boutique. The first was a young unicorn mare with a wild red mane and tail, along with an orange coat and silver eyes—eyes which drew his gaze due to their stark dullness compared to the rest of her strikingly colorful body. She was smaller than the average mare, but still quite slender in figure.

The second was an old pegasus with aged white hair folded in a bun to the back and a dull magenta coat and blue eyes, worn but still burning with a fiery passion. Both wore white diapers that crinkled with every step and nervous smiles as they approached him.

Mix-up couldn’t help but look bewildered at the two mares, being surprised by their clumsy appearance. He cleared his throat and spoke. “Are you the owners of this establishment?”

“Oh, yes! Yes, mhmm... yes,” the old mare spoke as she moved quickly to his side and began inspecting him, his eyes hardly able to follow. Quite frankly, he was surprised by her agility, despite her age and padding. “You want a suit, do you not. Yes, you’ll do well to have one.”

“Of course, why else else would I have come?” the cerulean pegasus said, taking a nervous step away from the old mare. She continued to look him over, regardless—prodding his wings and legs in weird ways, as if he were some strange creature that had appeared upon her doorstep. “I’m looking for a nice looking suit for an art exhibition I’m going to.” The old mare nodded as she began prodding his padding. “Eep!” He took a quick step away, once again.

The younger mare walked up far more carefully than the elder, almost like one would do with a nervous animal. “I’m sorry for my grandmother’s... outgoing behavior.”

“That’s putting it mildly,” Mix-up mumbled to himself. The old pegasus mare continued to look him over, her hooves tracing his body carefully now, before she turned her gaze to look at both her granddaughter and the new client. Both gave an expectant stare. She mumbled to herself, giving one more glance before rushing off to the back of the boutique. Mix-up couldn’t help but give a sigh of relief as she left.

The young mare looked back to him with a small smile. “She does that with every new customer that walks through those doors.” Her eyes suddenly widened as she gave a small gasp, jarring the stallion from his stupor. “Oh, pardon me for not introducing myself to you earlier.” She gave a small bow before speaking once again. “I’m am Scarlet Needle, and welcome to the Rainbow Needle: fashion made with passion!” She waved her hands with a contagious form of excitement, drawing a small chuckle from the cerulean pegasus.

“Well done!” He spoke with a small chorus of claps. “Now, allow me to introduce myself.” The stallion stepped back as if dancing and moved his form with elegance into a small bow of his own, his wings unfurled—his right over his heart, and his left stretched out into the open space of the shop. “I am Sir Mix-up.” He rose his head and gave a small smile. “It’s a pleasure to make your acquaintance.”

She was a tad surprised by the formality of his introduction, before a twinkle of realization hit her. She smiled. “You are of nobility, aren’t you?”

“Perceptive,” was the terse response he gave.

“Grandmother always said I had keen eyes, just like her,” she said with a tinge of pride entering her tone.

“Speaking of which,” Mix-up spoke offhandedly, “Where is that crazed mare you call your grandmother?”

Scarlet gave him a small glare, but otherwise made no other sign of disapproval before she answered his question. “She’s probably finding a suit that will fit your measurements.”

“But she hasn’t even...” his eyes widened in his own realization.

“Perceptive,” she spoke with a small smirk.

He recollected his thoughts, surprise still evident in his voice. “Yes she is,” he stated. “Unnaturally so, apparently.”

Hoof-steps reached his ears as the old mare returned with what appeared to be...

A blush began to spread across his muzzle as his right wing pointed to the outfit on her back. “I-is that...”

“Hmm...” the young unicorn mare looked at him with an inquisitive glance. “Do you not know what an undershirt is?”

“That’s not an undershirt!” he cried out. “That’s a onesie, for Celestia‘s sake!”

“Oh, yes. You are an Equestrian, yes?” the old mare asked as she brought the onesie like undershirt out upon her back.

“Cloudsdale pegasus, more precisely.”

“Well then,” spoke Scarlet, “that explains your confusion.” Mix-up still gave her a questioning glance, prompting a sigh from the young unicorn mare as she picked up the onesie like article of clothing with her velvet magic and held it in the air to be clearly seen. “While I can understand some confusion, an undershirt and a onesie are two separate articles of clothing. A onesie does not have a collar, does not have a pleated front, and is generally made with much more casual use in mind—whereas an undershirt is much more formal. The difference is quite obvious upon closer inspection.”

His green eyes looked it over, and yes, upon closer inspection, the difference could be clearly seen. It looked very much like a onesie in form, as it would be covering his forelegs, with the exceptions of the hooves, as it cut off at the cufflinks, and his diapered rump, but there was nothing covering the hind legs. Usually a onesie would cover the entire body. A collar also adorned the top of the shirt and had a pleated front that ran all the way down to the back. The back, where the diaper would be held, was covered in white frills and seemed to accentuate his rear. He thought it a curious garment, but was still a tad reluctant. However, after a moment, he decided to give it a shot. He was in a foreign land. Not trying some of this lands fashion would be a waste of such a trip, along with the fact that he needed it. “It didn’t look half bad, either.”. That final statement he would never really admit to. Not in a million years.

“Very well then,” he spoke, albeit with some hesitance.

“Perfect!” the young unicorn mare said with a small giggle. “Please,” she spoke, pointing to the circular platform in the center of the shop, “step on the platform and we’ll get started.”

Mix-up did what she asked of him and stepped onto the platform. It was a tad tall, he would admit, but no different than something of a large step. His diaper crinkled loudly as he adjusted his position atop the platform, prompting a couple of small smiles to form on the mares’ muzzles.

“Alright,” Scarlet started, “stand up on your hind-legs for me.”

Mix-up continued to do what was asked of him. He stood on his hind-legs and saw as the undershirt was unbuttoned by the velvet magic and was brought behind him. He stretched his hooves and wings, allowing the article of clothing to be placed on him, albeit with some complications. It was a tad difficult for the young unicorn mare as his legs buckled slightly due to the uneasiness of having a diaper widen his gait. “Try not squirming so much. You’re making this really difficult.”

“You stand up with your hind-legs on a platform wearing a big bulbous diaper and see how long you last,” was the retort he gave.

The undershirt was put on, regardless of the wriggling coming from the stallion. The buttons were put in place and a red tie was wrapped around his collar. It made the piece and looked rather dashing, if a little foalish in his opinion. No matter how much formality you added to a onesie, it would still be a onesie. A blush slightly covered his muzzle. “I still feel this is a little... undignified.”

“Don’t be silly,” Scarlet said. “Now, you can stand back on your forelegs, but I’m gonna need you to close your eyes.” He returned to his normal posture and closed his eyes, just as he was asked to. He heard the young unicorn mare’s magic come to life once again, as something was put atop his head and tied around his chin. “Ok, you can open em’,” she said, a small giggle escaping her lips.

He opened his eyes, a bit curious as to what she had put on his head and looked to the mirror that she levitated towards him. A cute pink bonnet was strapped around his head. His face turned red as a tomato as he tore it off with a wing and glared at the now bawling unicorn mare. She laughed on the floor, a hoof slamming against the ground. She was enjoying this way too much. “Scarlet! This better not come with the piece!” he whined, though he couldn’t help but let a small smile form at the edges of his lips. The old grandmother simply gave a chuckle before she went back up the stairs to find a nice vest and jacket that would do well the cerulean stallion. Perhaps something red to go with that nice bow tie of his.

“I’m sorry!” she spoke, wiping a tear from her eye as she stifled her laughter. “I just couldn’t help myself. No, it doesn’t come with the suit... but if you want it-” the bonnet hit her face with a silent thud as she looked back up at the embarrassed stallion.

“No thank you,” he stated, “I’d rather not parade through the city with such foalish attire.”

“Aww,” Scarlet teased, “but you looked so cute!”

“Silence!”

Mix-up, despite the embarrassment, actually found the banter quite endearing and, if he were to admit it, quite amusing as well. A small smile crept upon his face.

The happiness he felt did not last as a sudden pang of desperation hit him, causing his small smile to turn into a grimace. He needed to pee. Despite him doing so once before, he did so in the privacy of the inn room he had bought out for the week. Now, here he was, standing upon a platform in front of two mares (one presently unaccounted for) having to use the bathroom. A blush began to spread across his muzzle once again. He knew he should have went when he felt it back in the inn room, but he thought he could hold it, at least until he’d returned.

“Hey, you alright?” Scarlet asked as she waited for her grandmother to come back with some more suit pieces.

“I’m fine.” Mix-up did not know how to respond. He had never been in such a situation before. This was teetering on being a very awkward conversation.

“Are you sure?” she prodded once more.

He bit his lip as he turned his gaze away from her, his legs shuffling slightly as the intensity for release grew. He didn’t know if he should tell her he had to use the restroom or if he could get-

“Do you have to go?”

His eyes widened in surprise, turning to the size of pinpricks at her apparent awareness of his situation. He turned to her in panic. “What! No of course not! I-“ he jerked over as another pang of desperation shot through his bladder. He looked back to her as she gave a knowing stare. “Yeah, ok, fine. I have to go.”

Both stood there in silence, say for the crinkling of the stallion’s diaper as he fidgeted his form. She gave a small set of slow nods. “Ok,” she spoke, trying not to make him anymore distressed than he already was. “Are you gonna go or...”

“I can’t,”

“Well why not?” she asked with annoyance, her hoof tapping against the wooden floor as she swayed her tail impatiently.

“Because... well... you’re kinda...”

“Mix-up, you think this is uncommon for me?” she asked with a questioning gaze.

“Well it’s uncommon for me as I would rather not piss my britches in front of a pretty mare like you!” he hissed.

She gave pause to his statement before she spoke. “You think I’m pretty?” She smirked, causing the stallion to blush even further.

“T-that’s not the point!” He spoke, trying to regain his composure. “The point is, I need some privacy or...”

“Yes, I’m back, yes,” the old pegasus mare stated as she returned with a white jacket and red vest.

Scarlet turned back to him with an empathetic smile. “Guess you’ll have to hold it, then.”

Mix-up quietly whined as he continued to stand atop the platform, his form fidgeting as the young unicorn mare’s magic helped him put the two pieces on. He felt the pressure in his gut only intensify as he stood there, trying on the vest and jacket. Every time he moved a wave of desperation would wash over him.

“A mirror for him, yes,” the old grandmother spoke.

“Of course,” Scarlet replied, levitating the mirror once again.

He looked himself over in passing. His thoughts were solely on holding in his urgency until he was alone once again. He could not help but feel this whole situation wouldn’t have happened if he weren’t so stubborn. He could’ve just gone when he felt it, but nope! He just had to try to hold-

His eyes widened as his bladder cut loose. A faint hissing noise permeated the air as he felt the padding whisk away his urine, causing the diaper to swell and turn a yellow hue under the frills of the shirt. The warmth of his accident spread across his thighs, making his blush return in full force once again. All he could do is stand atop the platform and watch with silent horror as the size of his diapered rear grew in the mirror.

“Well...” the old mare asked.

Mix-up stood still for a second longer until her words reached his ears. He shook his head and put on a nervous smile as he spoke. “I-umm... think it’s w-wonderful, if a bit-“ he stopped himself before he could say his final word. The irony of such a statement would have surely been pointed out. After all, they must have know what he had just done!

His bladder’s store of urine turned into a small dribble before it came to a stop. He gave a quiet sigh, thankful that it was over. His diaper now felt warm and squishy, drooping slightly as well but being held tight to his rear due to the form fitting nature of the undershirt.

He needed to be alone to get out of this soggy diaper. He mumbled to himself, thinking on how best to do so before speaking. “I would like a moment to think about my... umm... new attire, before proceeding any further.”

The old mare gave an incredulous look, before she nodded and turned away from him. “Yes. Very well. Take care of him Scarlet, now will you?”

“Of course, grandmother,” she replied with a nod.

The old pegasus mare trotted forward to return to the back of the shop. Once she walked up the stairs, Mix-up gave a thankful sigh to Celestia for his good fortune. The only one left now was Scarlet, who was still looking at the stairs to which her grandmother had ascended. Scarlet turned back to him and spoke. “Alright, now let’s get you changed.”

“W-what!” Mix-up feigned, “what do you mean by...”

Her horn glew that soft velvet as he felt the buttons at the back of his undershirt come loose to reveal his used diaper, which now hung loosely from his hips. His face continued to burn a tomato red as she lended him a hoof which he timidly accepted. She guided him off the platform as if he were a foal. He felt so childish! He chided himself in his head as he looked at her with a glare. “Not. A. Word.”

She rolled her eyes. “Of course, your shyness.”

Mix-up gave a small grunt of disapproval but nonetheless followed her to a small room in the back of the shop. She opened the door to the room, revealing a wooden table with a padded cloth surface. Underneath of it were a few changing supplies, including of course: diapers.

She brought him in and laid him atop the table, before her horn became alit once more and began undoing the tapes. He wanted to protest, but found himself lacking the words to do so.

“I don’t understand you Equestrians and your norms. Holding your bladder must be painful and unhealthy,” Scarlet said in passing as she raised his rump and pulled the diaper out from under him while also pulling the undershirt higher up his waist, revealing his belly and all.

“It’s no different than you and your diapers. Running around wearing tainted cloth. Have you ever thought it might carry some sort of disease?” He saw her unfold a new diaper from underneath the changing table and lay it under his rump, pulling his tail through the tail hole before lowering him atop the soft padding.

“We are very sanitary. It’s one of our many traits as a kingdom.” She grabbed a tub of powder and began sprinkling it upon his groin, making sure that his crotch was well layered in the white powder.

“Oh, really? Then do tell how you dispose of these things,” he questioned, pointing to the padding that was being folded over his crotch.

“Hmm...” she thought upon the inquiry as she recalled what she knew upon the matter. “I think it’s decomposed using a chemical substance and turned into a fertilizer that is used inside our crops. I’m not sure.”

“That’s disgusting!”

“Hey, don’t you fertilize your crops using cow manure?” she retorted.

Mix-up actually didn’t think about that one.

The diaper was snuggly fitted to his waist and the undershirt and all of the clothes were put back into place. He stood up from the changing table and stretched his wings. “At least your mat is soft.”

“I’m glad you enjoyed it.” She smirked. “Usually Equestrians don’t enjoy getting changed by a stranger as much as you did. They always ask to do it themselves.”

“Did not!”

“Did too!” She laughed and brought him back out to the main section of the store. “But no more about that. What do you think of the suit?”

“I...” he thought upon it carefully. “Can I... see myself in the mirror one more time?”

She giggled, but nonetheless brought the mirror back to him. With his mind no longer focusing on his dying bladder, he could actually get a look at the suit he was wearing. The red of the vest and bow tie did well to contrast against his cerulean coat. His green eyes could not help but stare at the accentuated rump as the frills enlarged it to a degree, making him smile a bit at the cuteness of it all. He may have found his attire a tad foalish, but he found he looked rather dashing as well. “I... like it. I suppose.”

“That’s great to hear! Another happy customer at our boutique,” she quipped.

“Glad to see that your happy about my onesie-esque attire,” he sarcastically replied, a smile returning to his muzzle.

“It’s not a onesie,” she replied. “Don’t be mean.”

“As you have been?” he spoke, this time the smirk forming on his lips.

“I like to call it playful banter.” She walked behind the counter and registered his order. He walked up to the front and pulled out his coin pouch from under his wing. “That’ll be five hundred bits!” He gave her the coinage and turned to the door. “Would you like to take off that outfit?”

Mix-up looked at himself once again, before he turned his head back to her. He had actually planned on taking it off as soon as possible, but he was struck with a wave of confidence. “Nah,” he replied. “I think I’m good.” He walked through the entrance and back onto the busy city streets towards his tavern inn. He thought back upon his treatment at the boutique. The teasing, the embarrassment, the amusement. He rather enjoyed her company. “Maybe I might want another suit,” he spoke to himself, strutting in his new suit, excited to return to the Rainbow Needle.

As he trotted the door, his diaper crinkling under his suit, he did not hear Scarlet whisper to herself, “what an interesting Equestrian. I kinda liked him.”

Author's Note

Thank you all for reading! I really appreciate all the feedback I’ve been getting. I would also like to Thank Mix-up for the wonderful cover art. Go check him out!

If you want to see your character in a chapter of this story, feel free to PM me and it might happen.

Thank you so much for reading, and I’ll see you in the next chapter.