The Fitting

The pale unicorn stood patiently at the entrance to to her terrible lair and tapped her hoof upon the ground beckoning her prey to it's fate.

Dash was frozen, muscles locked up in confusion, a drop of sweat inched down from her mane. She was spotted and all hope was lost.

The immaculately trimmed hoof tapped twice more.

This time would not be like last time. She'd just fly up into the sky exulting in her freedom and escape to safety. She unfurled her wings and prepared to leap in the air.

The pale pony gave a smile and a knowing look.

Rainbow Dash furled her wings. This was what her life had become. This was what she was. With a resigned sigh she entered the creature's lair. She could smell the hot and scented bath that awaited her.

This was how it always went. Rainbow wondered why they kept doing it.

"Come right this way, darling. We have to get you cleaned up before your fitting," Rarity said with a smug grin. Like a ritual or a spell.

The pegasus followed, her eyes locked comfortably on her friend's flexing haunches. It always starts with a bath.

Mechanically getting into the hot water Dash passively allowed Rarity to rub her down with the curry brush. The brush worked in circles, gently but firmly working the dirt and grime out of the coat of the athletic pony. It felt wonderful and she loved it. Admitting such a thing wouldn't have been an act of Rainbow Dash the Tomboy and she didn't feel like abandoning her role as such just yet.

Her unkempt hair was combed, washed and braided. Her hooves polished, her fetlocks trimmed. The blue pony looking back at her from the mirror began to look less and less like her.

As her face and genitals where sponged clean it was like it was all happening to some other pony, her own identity groomed away into nothing.

The best young flier, the indomitable hero of Ponyville, the brash tomboy was remade, transformed.

A pretty show pony that Rainbow had come to recognize looked back at her in the reflection. That pony that was feminine and submissive, gentle and dainty, that cried out to be taken advantage of.

Dash was disgusted by that pony.

The unicorn brought forth the two clasps. They had been custom made with rainbow bolts on them. They fit over the first and second joints of a wing. Once fitted into place they held the wing closed and immobile.

Now was the time. The pegasus trembled in anticipation.

With sick joy and unquenchable fear Dash allowed Rarity to chain her to the ground.

When she had first seen them she had bolted. Now they filled her darkest fantasies.

Pretty and helpless Rainbow Dash took her position as living ponequin and posed whilst Rarity pinned together a dress out of pieces of fabric on her frame.

"A pretty dress for a pretty mare. Something soft, something delicate, something..."

the skirt was adjusted, folded, shortened to a scandalous degree.

"...feminine."

"But Miss Rarity, isn't it too short? I don't want anypony to think I'm easy."

"Oh hush dear, how much of slut you are is hardly something a skirt can hide," Rarity purred as she delivered her cutting remark to her faux-client, "Now try to hold your eager little rump still while I get this hem right."

Dash could feel hot breath on her nether lips.

In the mirror she could see that it really was a lovely looking dress. Rarity was apparently trying to get the skirt to hang naturally at the point where it would be just too short to hide her vagina, while staring into said orifice from about and inch's distance.

Dash felt Rarity exhale again.

While trying to hide her panting Dash was stabbed by a pin. This made her wings try to extend in alarm and in preparation to escape. Except that the clasps held them closed. Needing to fly and being trapped made her panic. Panicking because Rarity wanted her to made her sexually excited. Having chosen to be in a position where Rarity could do this to her made her hornier then she had ever been with anyone else.

Dash stumbled with a moan and she winked hungrily.

“I'm sorry,” Rarity lunged forward mounting her like a stallion, “but we don't serve fillyfoolers around her.”

Dash squealed helplessly as she was bit.

The dress came apart, the pins ripped out, the pieces scattered the design murdered in it's infancy to never be recreated.

The pegasus struggled with herself. Forcing herself to submit. To fold up and lay upon the ground beaten before Rarity. Struggled to not rip out the clasps, to throw the attacking unicorn aside and to exit the shop like a caged hurricane. Like she had a few times before.

Struggled to show her fear and speak the next line.

“Please, don't hurt me! I'm too pretty to be a fillyfooler!” her sopping nethers declaring her lie.

“Well you are pretty, if nothing else, my dear. I can think of something you can do to make up for bringing yourself here,” Rarity whispered cruelly.

The unicorn turned around and presented herself. Her tail swished to one side.

It was not commonly known or even believed, but Dash wasn't actually all that experienced or even keen on eating out mares. In fact she had never done so until she had started her encounters with Rarity.

Diving in deep Dash hungrily sought out the fashionista's hidden clitoris. Sometimes, if she did a good job, Rarity would reciprocate.

“I barely even have to ask, do I? You're one hungry little filly. Taking you on as an apprentice was worthwhile even if you do have no talent as a designer.”

Rarity gasped as Dash found her mark and began to work in earnest.

“Stupid little, huh, fillyfooler, this is all your, ah, good for.”

Vaginal walls clenched against Dash's muzzle and fluid was dripping down her neck. Rarity was going to come soon.

“Hide, ahhhh, your work under all the gems you want, you little, eeeaaaah, slut. They're still just...”

Rarity convulsed in orgasm, dropping to her knees, with a cry. Tears flowing down her cheeks. Her voice choked with lust, malice and pain.

“...gaudy trash.”

To be something you're not, something you could never admit to wanting to be. That was the thrill.