It had only been an hour since Celestia and Luna had signed over their lives to High Heel. She had now made copies of the document, which she intended to have the Royal Sisters add to the own personal records, so there would be no doubt about the truth of who they worked for. But she didn't anypony knowing just yet. Her plan was still in the early stages. Even though High Heel now had undisputable control over Celestia and Luna, there was still one major problem that would only become a thorn in her side if not dealt with.
RARITY, her rival!
High Heels had only started loosing business because Rarity's fashions started growing in popularity. First she had lured away her best manager, Sassy Saddles. Then she had attracted customers away from her best stores in Canterlot and Manehattan. High Heel's business finally started to fall when the stress caused her a period of "inspiration block", where she was unable to make any new designs. By the time she managed to get over it, her business was in the red. High Heel had hardly any employees right now. In fact, hiring Celestia and Luna right now just bolstered her workforce by 10%. And she wouldn't even be paying them.
But despite now having the best endorsements possible, with willing slave-labor, High Heel still wasn't satisfied. She needed her primary competition removed. Or better yet, working for her! High Heel had thought this out from the beginning. She was going to use the same methods on Rarity as she did on Celestia and Luna. Once the fashionista unicorn was under her spell, High Heel would make her sign a contract that would not only compel her to work for her, but it sign over ownership of Rarity's entire store chain to High Heel's company. This would allow her to, not eliminate the competition, but assimilate it.
She just needed a way to put Rarity under her power long enough to give her a full makeover too. And she thought she had just the mares to pull it off.
High Heel turned her sight to her new servants, who were curently in a cover of her studio right now.

After signing the contracts, High Heel let the Royal Sisters have some "play-time". Celestia and Luna were still in their dominatrix gear. And they were having the sexy fun that one would expect of them, given the why they were dressed. Celestia laid knelt on the floor, her dildo and butt plug no longer in her holes. Luna sat on her sister's back, in the dominate position. In her magical grasp were both the riding crop and leather flail their mistress had given them to go with their outfits, only Luna now used them as sex toys.
Luna was had the crop in Celestia's pussy, and the handle of the flail in her anus. She rhythmically pumped them in and out of her sister's holes at the same time, smiling as she did so. This gave Celestia intense pleasure. At the same time, Luna sat with her own posterior directly over Celestia's spine. Luna's own dildo and butt-plug were still in there proper holes, and they were still vibrating. This acted as a means to sexually massage Celestia while pleasuring her.
At the very moment, Celestia had mouth hanging wide open, panting from the pleasure. Her younger sister was driving her crazy at this rate. Luna simply had an evil smile on her face. This was something she actually always dreamed of doing.

High Heel couldn't help but be somewhat proud of her little servants She had only given them the sex toys as a form of amusement for herself. But now it was clear that sexual stimulation was a major stimulator for the Royal Sisters. For all their regal personas, even Celestia and Luna had their physical needs. They had simply always been able to control it and separate work from play.
But thanks to her mind-control makeup, Celestia and Luna trusted High Heel completely, and had no inhibitions about such sensual behavior around her. High Heel knew she could use these "hidden skills" to her advantage. Soon enough, her rival, Rarity, would be bowing at her hooves, as just another servant. High Heel simply had to play another round of "sexy makeover".

High Heel walked over to Celestia and, putting her hoof under her chin, said "Oh, Celestia, I have a very important, very sexy task for you. Are you feeling up to the challenge?"

Catching her breath and blushing, Celestia replied, "Of course, mistress! Just tell me what you want, and it shall be done."

High Heel grinned and said "Excellent! I need you to make a call to one of your "friends"."
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The Next Day...

Rarity sat alone in the dining room of the royal palace. Celestia had sent her a letter asking her to come by the palace on that very day. Apparently, Celestia wanted Rarity's help on a "fashion related matter". (Technically true!)
Rarity had been asked to wait for Celestia in the dining hall, while the princess finished up an important appointment. And so, Rarity sat as she was, waiting like a polite lady would. She had her saddlebags with her, one containing her sketchbook, should a new design need to drawn up, and the other stuffed with the finest fashions Rarity had at the time, in case a new outfit was demanded now. She thought she was prepared for anything.

As Rarity sat there, the doors to the chamber slowly swung open. Rarity looked over to see if her hostess had shown up. As she expected, it was indeed Celestia. But what she saw was completely unexpected.

Celestia was dressed in a full maid uniform. She wore black, frilled dress, with puffy sleeves. Around her neck was a black bowtie, similar to that worn by servants. She wore stockings on her back legs. Her mane and tail had both been styled into a bun formation, with a maid's headdress holding her mane in place. The whole outfit was tie together by Celestia's makeup, as she wore black eyeshadow on her face.

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Celestia walked into the dining hall, strutting like a supermodel on a catwalk. Unseen, under the skirt of the dress, she had a transparent butt plug in her ass, and a quietly vibrating dildo I her pussy.
She carried a silver serving tray in her magical grasp. She walked right over to the table, where levitated the tray to Rarity and set it down in front of her.

Rarity's jaw dropped when she saw Celestia in such a dress. Why would the most regal of Equestria's princesses by dressed like a lowly servant. Could this be the "fashion matter" Celestia wanted to talk about? Could it be more of a fashion emergency? No doubt that Celestia could make being a maid look super sexy, but why?

Celestia looked at Rarity and said "Hello Rarity. Thank you for coming on such short notice."

Rarity grinned and replied "Of course, your highness. It was now trouble at all. You know me, I live to help other ponies. Especially when it come to fashion!"

Celestia gave a smile and said "I'm glad to hear, because I have a matter of fashion that requires your particular talents. It's so important, you might find that you can't say "no"."

Rarity gave a confident nod and said "If it has anything to do with clothes or style, I'm your mare. I just need to know what it is. And, um... might it have something to do with your... "current attire"?"

Celestia simply replied "I need you to design some new clothes for and Luna. We recently took on some "new duties". And new attire will be paramount to this work."

Celestia looked at Rarity's face and saw a look of mixed emotions. Both excitement and confusion were apparent. She looked at herself and realized she forgot to answer her other question.

Celestia said "And as for the maid uniform, I decided it'd only be proper to serve you tea as a curtesy, since I was asking you a huge favor. So I decided to dress the part to show you my humility as well. Me and Luna really need your help, please."

Rarity gave warm smile and replied "Oh darling, you didn't need to go to the extra trouble on my behalf. If you need some new wardrobe choices, all you need do is ask. Though I will say, you do make the maid dress look ever so ravishing."

Celestia grinned in response, then said "Excellent! Why don't we discuss it over some tea."

With that, Celestia lit her horn and levitated the lid off the tray. Under it were two tea cups, a tea pot and two differently colored teabags. Celestia levitated the pot and poured it fill both cups with hot water. She then levitated both teabags. She lifted them I n clear view for Rarity.

Celestia asked Rarity "Which would you like, the red-tea or the blue-tea?"

Rarity instantly said "The blue-tea, darling! It matches my mane."

Celestia gave an almost evil smile and said "Of course, excellent choice!"

Celestia levitated the blue bag into Rarity's cup, and the red one into her own. The liquid of both cups took on the color of their respective bags. Celestia levitated the blue tea over to Rarity.

Celestia said to her guest "Please, enjoy."

Being the lady she was, Rarity responded "Gladly, and thank you."

With that Rarity levitated the cup in her onw magic. She brought it up to her lips. Ever so gently, she took a lad-like sip. She then put back down on the table. Rarity swallowed the tea and took a moment to appreciate the fine flavor.

Rarity open her mouth and said "Oo, it has quite a zing to it. What floavor is...."

Rarity stopped mid-sentence. She went slack-jawed, her mouth hanging agape, started drooling. Familiar swirling colors appeared in her eyes, and she became motionless. Rarity was hypnotized and in a trance. The cup dropped onto the table, spilling what was left of it's contents. Rarity simply starred off into space.

Now that had been to easy. Celestia grew a full evil smile across her face. Her mission had been a success, her target was now under her control. Celestia left her cup as it was and did the single. She tapped her hoof on the table three times, which rang out through the dining hall. Moments after that, another set of doors opened up on the opposite end of the room.
The sound of heavy hoof steps could be heard getting closer. And then, the owner came into view. Into the room strode Luna, now looking different from before, just like Celestia.

Luna now wore a pink ensemble. She wore pink shoes, in place of her usual silver ones. Around her neck was a simple crescent-moon necklace. The bangs of her mane had been restyled and held in place by a pink-pearl hairpin. And the whole outfit was tied together by the pink-frilled saddle she wore. Luna also wore pink tone of makeup, including lite eyeshadow, and a light shade of pink blush.

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But more important was the occupant of the saddle. High Heel rode her mount into the room, looking as smug as ever. She had taken the liberty of changing her heeled boots. The new ones were a blued-leather set with a pair of pointed spurs on the rear boots. Luna was visibly enjoying her position, evident by the drops of fluid that dripped from her pleasure hole as she walked. She obviously loved pleasing her mistress. In addition to this, it was clear Luna also had yet another butt-plug in her rear again. But the dildo she had carried before was absent.

High Heel rode Luna over to the table, bringing her to stop next to her sister. She used the spurs on her boots kick into Luna's sides, but not hard enough to harm her. The sharp prick let the dark mare know her mistress wanted down. Luna obeyed the implied command and knelt down on her knees. High Heel dismounted her steed. She then walked behind Luna and brought her front hoof up to the butt-plug under her tail. High Heel pressed in on the plug. Luna gasped has she did, letting out a sigh of pleasure. Her legs went stiff and Luna instantly stood back up, straight.
High Heel then walked over to the hypnotized Rarity. She put her hoof up to the mare's chin, and caressed it. Rarity didn't respond, but simply continued to drool, even on High Heel's shoe. High Heel shook the drool off and walked back over to her royal servants.

She stopped in front of Celestia and said "Excellent work, Celestia! Thanks to your deception I now have my greatest rival under my power."

Celestia replied "Thank you mistress. I gave her the blue hypno potion like you said. She was even dumb enough to choose it."

High Heel said "Good! Now I'll have her drink the red one as well. It has a strong aphrodisiac effect that will drive her libido crazy. Her body will become aroused while her mind stays firmly in a trance."

Celestia said "Indeed, mistress. She will be much easier to train like that."

And so, High Heel commanded "Rarity, I order you to pick up the teacup and drink it's contents!"

Rarity answered "Yes."

Rarity then lit her horn. A blue glow appeared around Celestia's untouched cup. Rarity gentelly levitated it over to herself. It stopped midair in front of her face. After a moment, she puckered her lips and tipped the cup. Rarity started to unceremoniously chug down the entire contents of the cup. In one mouthful, she gulped down all the liquid. After which, she dropped the cup next to the other one, both now empty.
High Heel smiled at this sight. Rarity would now be under the influence of both potions. She watched as the lust potion took effect. Rarity was still in her trance, but she gave a slight shiver. Her cheeks turned a bright shade of red as she blushed, And moments later, Rarity started to give off a familiar scent. The scent of arousal. High Heel walked behind Rarity and looked under her tale. There, was her final sign of effect. Rarity was dripping body fluids from her vagina. At the same time, Rarity started to from her mouth a little more
This all meant that the potion had taken full effect. High Heel could now move on.

High Heel walked back over to Luna. She walked to the mare's rear end.

High Heel asked Luna "Luna, did you cast that particular spell I ordered? The one on your pussy"

Luna replied "Yes, mistress! I cast a portal spell on my pussy. It is linked to your trunk of makeup and costume supplies. All you need do is reach into my pussy, and you can access it's full contents."

High Heel said "Excellent! With this arrangement, I can access everything I need without having to carry that huge trunk around. I can get anything I want straight out of your pussy. So YOU ARE my new supply trunk. Now spread those legs, so I can get what I need!"

Luna gladly obeyed. She held her tail straight and spread her rear legs. Her pussy became visible to her mistress. High Heel reached her hoof into Luna's hole. As she did, a magic-glow surrounded the boarders of the vagina, and High Heel's hoof seemed to disappear far into it. Luna let out a small sigh of pleasure. She could feel the magic at work on her body. Her body was the access point between two places, and it felt as if a great energy was passing through her. High Heel wiggled her leg around for a moment, then she smiled. She pulled her hoof out almost instantly. Her legs seemed to phase back into sight out of Luna's pussy, and it had an extra item in hoof. Luna gasped as this happened. The dark-blue alicorn started to breath heavily, now blushing bright red.
High Heel held up the items. They were brown leather harness and bridle. High Heel looked over to Her servants.

She said to Celestia "Celestia, I want you to magically put this on her. After that, dominate her!"

With that, High Heel threw the mass of leather at Celestia. The white alicorn caught it with her magic.

Celestia gave a sinister smile and replied "Of course, mistress!"

Celestia focused her magic. A golden aura appeared around the entranced Rarity. Celestia's eyes glowed. In an instant, there was a flash of magic. A moment later, it faded.
High Heel looked at Rarity. Rarity was now wearing the full-body harness. Her front legs were bound together by two leather cuffs. And she had a brown leather bridle on, complete with reins.
Celestia walked over to her future-fellow-servant. The unicorn was still drooling at the mouth, her face red with arousal. Celestia lit her horn, enveloping Rarity in her golden glow. She levitated Rarity into the are, then plopped her omto her back on the floor.
Celestia stood over Rarity, looking at her with a smirk. Rarity let out a heavy breath, as the movement had aroused her even more. Celestia lit her horn again, this time grabbing the reins in her magical grip. She yanked it over Rarity's head, causing her exhale again in pleasure.

The maid dressed princess lowered her face to meet the fashionista's. With sinister glee, she licked the smaller mare on the horn. This caused her moan in pleasure. As she did, Celestia kissed her firmly on the lips. While lip-locked, Celestia swirled her tongue around in Rarity's mouth. A moment later, they separated, and Rarity let out a moan of intense pleasure. Celestia was, indeed, a good kisser.

Celestia turned to her mistress and said "Oh mistress, I think she's ready for your training."

High Heel replied "Good! Now pick her up and put her on your back. It's time to train her in private. And be ready, your going to doing it, Celestia."

At this, Celestia gave a big grin and said "Of course, mistress!"

Celestia then lit her horn again. She levitated Rarity onto her back, with her leg hanging limp. High Heel walked behind Luna. She pressed in on the butt-plug again, and her mount lowered. She mounted her servant, then pricked Luna with spurs again. Luna rose to her hooves. High Heel steered Luna over to Celestia's side.

High Heel then said "Do it!"

She then reared her legs, and kick into Luna's sides harder. This jolted Luna into response, She turned her head toward her sister and kissed Celestia straight on the lips again. As before, the two sisters took the signal and lit their horns at the same time. Their horns flash and in an instant they were all gone. Back to their mistress's studio to makeover their new sister-in-servitude.
_______________________________________________________________________________
Sneak Peek...

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Author's Note

Please leave some comments and opinions.
Expect some "games" in the next part. If there is anything you want to see in particular, let me know.
SERIOUSLY!