Svengallop stumbled out of the town hall, her pants uncomfortably tight and her legs shaking with every step. The last few hours of her day had made her aware of a whole new world of pleasure, as her master had forced her over her desk several more times over the day. Her lust was insatiable and by the end of it Svengallop’s hole had been fucked so brutally it no longer closed properly and his stomach bulged with the changeling’s seed. So frequently was her hole fucked and filled that she had to use an extra large butt plug just to keep it all inside her.

She certainly wasn't complaining about the stretching caused by her toy. It was a delicious reminder of her place.

Most of her suit had to have been abandoned due to the massive size of her stomach which was now large enough to make it look like she had swallowed a beach ball. How her body had managed to hold the gallons of changeling spunk was beyond her, all that she cared about was the pleasant warmth that radiated from deep inside her. Even if walking like this was awkward and time consuming and the looks she garnered made her uncomfortable.

Still, even with all that, adding a few minutes to her walk home and making him the target of many strange stares it was well worth it. Her master had been so pleased with her ability to take every last drop that she had even gotten around to shrinking his package a few inches. It wasn't much as he used to be rather large but at least not she felt closer to her true self.

As she walked home she couldn't help but bring that same image to mind, it was simply too intoxicating to not think of. In the image she had lost all aspect of her formerly male self. Her hair was long, curly and hung nearly to her knees. Her hooves were immaculately kept, makeup adorned her face, and her tail was done into a tight bun, allowing her master easy access to her pussy. Most important of all, the image also lacked the one thing all males shared, a cock.

Not like it was completely gone mind you, rather it was so small, and rendered so important that it was hardly noticeable. Even her balls had become so small that they were only the size of marbles. Contrast that to the very present feeling of her balls pressing against her stomach and Sven could already feel a wave of disgust begin to build inside her.

She detested her maleness, how it clung to her and how she couldn't get rid of it. Maybe tomorrow when she spoke to her master she could beg, and plead for her to have it shrunk more. She sighed, pushing those thoughts and the image of her true self from her mind. She didn't need more distractions in her day, she had a lot left to do after all and not much time to do it.

First she walked home, slipping into her small, comfortable apartment before undressing and making her way over to the bathroom. Though she hated to get rid of the gift her master had given her, she knew it wasn't healthy to keep a belly full of cum for this long. And so, with great reluctance she pulled out the plug and emptied herself of the seemingly endless gallons of cum that had filled her guts.

With that done she cleaned herself up, rinsed out her tub and donned a new suit.

As she looked in the mirror she sighed, turning left and right as she searched for something amis and yet despite finding nothing the feeling lingered. Her suit was perfect, her pants tight in all the right places while still being comfortable, and yet she still felt… off.

She did another slow spin in the mirror only to come up empty hooved. “What is wrong with me?” She muttered to the empty room.

You’re going to buy several dresses, skirts and other feminine clothes after work today and you’re going to wear them from now on. Understood, slut?

Svengallop gulped, the words of her master having come unbidden to her mind.

She looked down at her suit one last time, realization suddenly popping into her mind.

This isn't what a mare should wear, and Sven was just that, a mare.

As quick as she possibly could, the earth pony shed the suit entirely and tossed it across the room. Now nude and breathing heavily, the mare looked back at the mirror and smiled faintly. Her form wasn't fitting that of a true mare but it looked better than when he had worn that suit, though there was one thing that made her frown the instant she saw it. Though her cock was safely hidden in it’s sheath she could still see her pronounced balls hanging proudly and ruining the image she held in her head.

With a sigh of defeat the mare left the room, grabbed a pair of saddle bags from her closet and walked out the front door. Her master had commanded her to go out and purchase clothes that fit the true her and there was no way she could resist such an order. Despite her master’s order still replaying in her mind she felt something strange rising inside her. The second her hoof touched the doorknob a tiny voice called out from the depths of her mind.

Don't go! It cried Stay in, wear the suit!

She gulped, already imaging what punishment might be awaiting her if she did not follow her master’s orders. An involuntary shiver coursed up her spine and instantly her doubt was gone, replaced by determination born of her desire to please her master.

She pushed herself out the door and down the road, striding determinedly towards the clothing store at the other end of town. Sven had never gone there herself as she had always gone to a Canterlot tailor for her suits but now things were different. A tailor wouldn't cut it for what she wanted, only a master dress maker could have any hope to bring out the mare she knew was inside herself.

Luck was on her side this time, as it seemed like there was a master seamstress here in Ponyville of all places. Although Sven hadn't seen this dressmaker’s creations up close and in pony, she had heard the dressmaker had made garments for three of the four princesses. And if they were good enough for royalty they were good enough for a worthless cum dump like Sven.

The mare shivered in delight at the thought, her hooves picking up the pace as she hurried to her destination. Her master had called her pretty and thus she would do everything in her power to be the prettiest mare in Ponyville for her.

The tiny voice screamed and raged in the back of her mind but so minute was the sound that it was easily droned out by the hustle and bustle of the busy town, becoming little more than an irritating buzz at the back of the mare’s mind as she strode confidently down the street.

When the time came to walk into the boutique, Sven held no reservations and not a single drop of doubt tainted her heart. With long confident steps she pushed her way through the door and into the shop beyond, a smile on her face.

Instantly she was met with the smiling face of the shop’s owner, who popped up from behind a display of dresses. “Hello and Welcome to Carousel Boutique where every garment is chic, unique and magnifique. Is there something I can help you find?” The mare batted her eyelashes and smiled at the stallion that had just walked in.

Svengallop’s confidence faltered for a second she awkwardly rubbed the back of her neck. “I was just wondering if you had um, well something that uh…” She gulped.

Rarity waved her hoof dismissively. “Suit? Pants? Dress shirt?” She offered, quite unhelpfully.

Sven shook her head. “No, I was wondering if you had some… Skirts?”

Rarity blinked, the stallion practically whispered the last word. “I’m sorry darling, what was that last part?”

Sven bit her lip, trying to push back at the sudden resistance she felt building inside her. Why couldn't she just say it? Her master had ordered her to do this after all!

“Skirts.” She muttered, wincing prematurely.

Rarity smiled. “Oh, skirts! Picking something out for a girlfriend, how romantic.” The unicorn swooned and made her way over to the rack that she had first appeared behind. “Now these here will fit most mares, but I must ask do you know her measurements, by chance?”

Sven shook his head. “They aren't for somepony else.” She hung her head. “It's for me.”

Rarity blinked, her mind going blank for a second. “Oh my! I am so sorry! I just assumed! I just remember seeing you around town in a suit and I…” She sighed. “That's no excuse. Please darling, is there anyway I can make up for my tactless suggestion?”

The earth pony slowly looked up, hope growing in her eyes. “Well, if you could help me find something that fit…”

The unicorn scoffed. “Pish posh darling! I will do more than just find you something that fits, I will find you something truly marvelous! Than, and only then will my absolutely boorish behavior be excused!”

Svengallop couldn't help but giggle at the unicorn’s antics, her voice raising a few pitches when she did. “Thank you, my name is Svengallop by the way.”

The unicorn shook the other mare’s hoof firmly, smiling widely. “It's a pleasure to finally meet you. Now come, we just must find your measurements before we can locate something suitably fabulous!” Rarity kept her grip on the other mare’s hoof and pulled her near the back of the boutique.

Sven merely held on for dear life, following the mare closely and giggling all the while. The feeling of being led around so forcefully brought a blush to her cheeks and a smile to her lips and soon enough she was putty in the confident mare’s hooves.

She soon found herself at the back of the mare’s shop, being analyzed carefully by the unicorn mare who seemed to be taking every measurement possible. At the end, Rarity gasped, blinking unbelievably.

“Oh my!” Rarity took a step back, glancing at the tape. “I must say, you have the most amazing figure. Even I am rather envious of your curves,” the mare winked, making Sven giggle nervously, a hoof covering her blushing cheeks.

“You absolutely must try something on from my fall line up. I will be back in just a moment.” The unicorn flashed Sven another winning smile before trotting back towards the front of the store, humming a small tune as she went.

Sven’s smile and blush slowly faded and the memories of their awkward first encounter returned to the forefront of her mind. A frown slowly crossed her face and Sven found herself wondering where her confidence had suddenly gone. She had entered the store so full of energy and determination but than it was just… gone.

Because you know this is wrong! The voice cried out.

Sven took a step back, looking around for the source of the voice. “W-whos there?” She whispered fearfully. “Rarity?”

Augh, I’m you! The real you! Listen to me, we don't have much time left you must leave this place and-

“Oh darling I found just the dress for you!” The unicorn trotted up to Sven, a huge smile on her face. “I think it will fit your figure just perfectly!”

Sven shook her head, the mention of dresses triggering something inside him and bringing his attention back to the present. “O-oh?”

Rarity trotted to the back of the shop, a tight, form fitting blue dress in her grip. “Tada! What do you think?” Rarity turned the dress to the side, allowing Svengallop to see the entire thing.

It was… girly, really, really girly. The tight form fitting main part of the dress gave way to a back end that had morphed into a puffy, dull pink lace that would only barely cover her ass. Despite the tiny voice yelling in her head, Svengallop gasped and trotted up to the mare, her eyes wide. “This. Is. Perfect!”

Rarity squealed in delight and pushed the dress towards Sven. “I just know it will fabulous on you darling, please use the dressing room over there and we will see if it needs any alterations.”

Svengallop nodded, excitement burning in her breast. This is perfect! Now I just need a few more like it for work. She stopped and facehooved. “Rarity, do you happen to have a few more that fit like this? I need several for work.”

“Oh yes of course darling, you just go try that on and I’ll gather a few others.” Without waiting for a response the peppy unicorn turned and trotted off.

Leaving Sven to giggle softly to herself while making her way over to the dressing room. This is going perfectly! She thought.

Once inside the changing room Sven turned the dress in her hooves, turning it slowly. How do I get into this thing? There didn't seem to be any zippers, buttons or any manner of way of slipping into the thing. Other than the back of course. Sven gulped, hoping she wasn't about to ruin a perfectly good dress.

The words of her master once more came unbidden to her mind. Your pretty. It was nice to remember such a simple compliment, something so plain yet so appealing in it's honesty. Sven shivered, a blush running across his cheeks as she remembered being told several times just how pretty she was.

She looked down at the dress with a gleam in her eye. And with this, she would be even more pretty.

Rarity frowned, it didn't usually take this long for somepony to put on a dress but than again she didn't get many stallions coming in wanting to try on said dress. Other than little Glitter Shell but they were something different entirely. Regardless, the struggling seemed to have stopped so she raised her hoof and knocked once more.

“Are you sure your alright in there darling?” She asked nervously.

The door suddenly opened to reveal a rather triumphant looking Svengallop who had finally managed to put the dress on. The former stallion trotted out of the room proudly, strutting past the stunned unicorn in victory.

“So, how does it look?” Sven asked nervously, trying to strike a pose like the ones she had seen in those fashion magazines she hid beneath her bed.

Rarity’s smile slowly grew to encompass her face and she did a short circle around the former stallion. “My oh my darling. That dress truly does suit you! Wonderful, absolutely wonderful!”

Svengallop giggled and did a tiny happy prance. “Oh this is perfect, I just know Mayor Mare is going to love it! How much is it?”

Rarity smirked. “For you darling? Fifty bits.”

The well dressed mare gasped. “But that's so cheap, surely you can't be serious!”

The unicorn rubbed the back of her neck awkwardly. “Please accept a small discount as payment for my rather uncouth behavior earlier, it wasn't right of me to say that.”

Sven frowned but reluctantly sighed. “Fine, but I am buying those other two and I will not accept a discount on them.”

“Excellent choice, would you like me to bag these for you or all three?”

Svengallop blushed profusely. “Just those two, I don't know if I can get out of this one.”

Rarity giggled, quickly bagging the other two up and depositing the receipt in the bag. “Thank you again Svengallop, I hope to see you again soon.”

Sven smiled back. “My sentiments exactly miss Rarity.”

The former stallion grabbed his bag and turned to the door only to turn right back around. “You wouldn't happen to know somepony who is good with makeup by chance, would you?”

Rarity’s eyes lit up. “Darling you have come to the right mare. I know just the pony!”

Svengallop shrunk slightly. “Are they good with… well you know.” She gestured to her masculine facial features and sighed.

“Absolutely darling! Why don't you come back to the boutique in say… two days and you can meet them!” Rarity clapped her hooves together triumphantly. “Oh this is just perfect. I know you two will get along splendidly.”

“Thank you again Rarity, you have been a huge help.” Sven bowed slightly, drawing a giggle from the other mare.

“Oh stop, your making me blush!” The mare giggled behind her hoof. “Now go darling, go out and show the world how fabulous you are!”

Sven pulled her head up high. “I will!”

With that, the earth pony turned and strode confidently into the streets and towards her home. Inside her boutique Rarity was giggling like a filly. “Oh this is just perfect! A stallion who needs lessons on makeup and a colt looking for a friend like him.”

She squealed like a filly and did a little circle before stopping, her eyes going wide. “I must tell Glitter Shell straight away, they are going to be so excited!”

The mare quickly flipped her open sign over, locked the door and trotted out into the street, an enormous smile on her face.

Once home, Svengallop dropped the dresses in his room before strutting proudly in front of the full length mirror that was nailed to the back of her bathroom door. She couldn't help but smile at the sight she beheld, marveling at just how much a simple dress had done for her. The mare in the mirror was sleek, sexy with just the right amount of curves where it mattered and the dress accentuated it all perfectly. Truly Rarity’s dress was a work of art.

Now she just needed a slick pair of panties to fit the ensamble and it would be perfect! The mare excitedly made her way over to her dresser and pulled out the bottom most drawer, revealing a pile of stallion’s undergarments. Instantly a frown came to her face and she tossed every single pair made for a stallion into the nearby trash, leaving only three skimpy pairs of mare’s underwear in the large nearly empty drawer.

The first was by far the most simple, being little more than a solid black thong with tiny white hearts printed all over it. Sven pushed that pair to the side, it was far too tight and didn't match her dress at all. The second was closer, being a frilly, lacy pair of panties that were black and pink. But that still didn't quite match and she pushed those aside as well.

When her eyes fell upon the last pair her eyes went wide. “I forgot I kept you.” She muttered.

The last pair was absolutely perfect. They were by far the oldest pair she owned and they were a little on the stretched side, still they would do the job and the faded blue panties with purple stripes would match her dress to a T. Instantly the mare stepped into them and pulled them up, relishing the feeling of snugness that the familiar pair brought on.

Over the next couple hours as evening came and went, Svengallop wore the dress and panties with pride, trotting around the house as if Mayor Mare was around every corner. Striking poses and occasionally presenting her purt butt, imagining her master was there, smiling down on her. Eventually after she had eaten and gotten ready for bed she sighed dejected, looking down at the dress.

“Now, how do I get you off.” She muttered.

After several minutes of struggle, Svengallop managed to remove the dress without damaging it, placing it gently on the chair beside her bed, ready to be put back on the moment she woke up the next day. The former stallion couldn't help but giggle as an odd thought entered her head. She shrugged and leaned forward giving the dress a small kiss before jumping into bed.

She pulled the covers up to her chin and laid on her side, her eyes resting on the fabric sitting beside her bed. The dress glimmered in the soft moonlight and Sven couldn't help but smile at the sight. This day had truly been, perfect.

Svengallop’s sleep had been strange and more disturbed then normal, waking up randomly during the night only to fall back asleep in seconds. Her dreams were a disquiet mess of sights and sounds, and through it all she could barely understand the contents therein. One moment she was standing on a fashion runway in a shining dress, the next she was toiling in an office wearing that dreadful suit. Through it all she could hear the tiny voice crying out, yelling and screaming about something Svengallop couldn't quite hear despite the voice’s volume.

It was bizarre, and left the mare confused and tired by the time she awoke. Her eyelids were heavy, her breathing rapid and her blankets and pillows were scattered around the room, leaving her naked and cold. Svengallop groaned in annoyance, twisting herself back into a less awkward position. Slowly she pulled herself off the bed and stretched, feeling her back pop and her legs crack.

“Feels like I ran a marathon in my sleep.” She muttered.

Turning to the bathroom she quickly made her way into the shower, only pausing to discard the panties she still wore. The feeling of the water cascading down her back was a pleasant one but even it couldn't get rid of the strange feeling of wrongness that perpetuated her being. The feeling was akin to forgetting something important, but what?

She shrugged it off and continued to clean herself thoroughly, going so far as to make sure her pussy was clean and ready to be used at a moment’s notice. The thought brought a giggle to the mare’s lips and she grinned at the thought of being made to service her master again. This time when she thought of the joy of pleasuring her, it came with a surprising feeling of shame, which wiped away the smile she had on her face.

Her hoof wavered, nearly dropping the soap she held.

“What was that?”

When no answer came the mare shrugged and finished her routine, going through the motions quickly. That same feeling of forgetting something returned the moment she stepped out of the shower and Svengallop dried herself as fast as she could before putting her panties back on and stepping back into her bedroom. She instantly glanced at the clock, only for her eyes to bulge from their sockets.

“Oh no! I’m going to be late!”

Sprinting over to her dress she hoisted the clothing into the air and maneuvered her hooves through the opening only to stop. “That isn't right.” She muttered.

She could see light coming through the end of the dress, which wasn't strange on it's own but this light was coming from the side of the dress, where the fabric should have been the thickest. She placed the dress down on the bed and slowly stepped back, gulping at the sight of the damage.

There across the side was a thin line that had cut clean through the dress from neck to hip. “Oh no! Oh no, oh no, oh no.”

The mare felt like screaming, of breaking down and weeping at the sight, only for a thought to enter her mind. Who did this?

It certainly hadn't been her. Sure her treatment of the dress was less than perfect but she couldn't have done something like that, even by accident! Her eyes went wide as realization settled in and her hooves carried her sprinting towards the door to her apartment where she had left the bag of the other two dresses. She lifted one out of the bag and quickly inspected it, her eyes running over each inch of the dress only for her to sigh. “Oh thank the stars.”

The dress was a simple sundress, light, frilly and a pleasant mixture of orange and reds and most importantly it was intact and completely unharmed. She placed it aside and pulled out the last dress and gave it a once over as well. Sure enough it was unharmed as well, it's thicker, more padded fabric of blues and purples unmarred by the atrocity that had occurred to her most prized possession.

With a sigh of relief she dropped it back into the bag only to stand bolt upright when she remembered the time. “Hurry Svengallop, you cannot disappoint your master!”

She quickly lifted each dress in turn before dropping the blue one once more. Hastily donning the bright sundress Svengallop glanced over to the fridge only to dismiss the notion entirely. She would just have to get a larger lunch, getting to work on time was paramount!

With the dress donned she hastily threw open the door and after locking it behind her, began sprinting towards town hall. I will not let you down master!

As the mare ran as fast as her legs could carry her the tiny voice in her head laughed maniacally, memories of the night before flashed through it's separate yet connected mind. The flash of steel reflecting the moonlight, the sound of fabric tearing as he plunged the knife through and brought it down the entire length of the offending dress. It had been music to his ears and though he was once more thrust to the back of their mind, he felt a cool sense of accomplishment bubbling within him. Time was his ally, for in it he would regain control once more and finally free himself of her tyranny.

Author's Note

Edited by theloneunicorn!
This story was veiwable a week early to 3 dollar patrons! Want to see stories like this before anyone else? Drop just three bucks on my patreon and join the early release club!

Join me over on patreon and get instant access to exclusive content and early looks at new stories, patreon only stories and other great stuff! Check it out!
Or just join the discord to ensure that you dont miss an update. https://discord.gg/6NCNYzt