[Cursed Collar, Brainwashing, Slavery, Ponyplay, Age Progression]

"Such a pretty collar! Don't you think so too, Sister?"

"Princess, we really shouldn't be drawing so much attention to ourselves. You know what people might think if they realize that the Crown Princess of the Elven Kingdom is out here, acting like she's a common citizen."

The short-haired blonde princess pouted as she gazed at her Knight. The Captain of the Guard... And her older sister, who had abdicated her chance to rise to the throne. All for the sake of protecting her.

Not that she was too happy about having her elder sister protecting her and acting like they weren't related. She loved her sister a lot, it didn't feel right for her to try and act like they weren't sisters! So she pouted and huffed in public, though thankfully her childish behavior wasn't really noticed by the people around them.

The Knight sighed in response to the Princess' childish mood. She did love her sister a lot. That was why she was there to protect her at almost all times. But that didn't mean she agreed with the way that the girl acted. Especially in front of an influential merchant from another land.

This prompted the Knight to bow her head. Thanks to the sheer thickness of her armor and the lengths that she went to obscure her true identity, you could barely even tell that she was female. Outside of her long blonde ponytail, which you couldn't help but draw attention to when she bowed her head down like that.

"Oh, no need to apologize to me! The Princess is only human, of course she couldn't help but be charmed by my wares!" The jovial Merchant chimed, her oriental garb hugging her curves in an incredibly revealing manner. Really contrasting the lady Knight that was trying so hard to protect her identity and her sensuality in the process. Especially when it concerned their bosoms...

It wasn't hard for the Merchant to tell that the lady Knight was catching glimpses of her bust. She knew she would, she didn't leave her with much of a choice with how little fabric actually obscured her rather generous set of breasts. In fact, if she really wanted to, she could probably have her gaze deeper and deeper and make her lose herself in them. But that wasn't what she wanted from these two.

No. She didn't want to pry the two apart. Not yet. They were going to make for such a wonderful item. And all it would take to prepare them for that was to let the Princess keep being who she was.

"How much is this?" The Princess asked as she grabbed a diamond-encrusted collar. She really liked the look of it. Even if it did look a little tight, and she questioned why there would be a loop for what seemed like a leash. Wasn't this the type of accessory that a cool knight would be seen with, even if it was a little prettier than that kind of accessory?

The Merchant chuckled as she brought her kiseru up towards her lips. "For you, my dear? If you were to gift it to that wonderful Knight of yours, who wants nothing more than to protect you and keep you safe? I believe we can work out an incredible deal." She didn't name a price. She didn't need to, not when faced with such easy prey.

"Pleaaaaase." Immediately as she heard that it would be cheaper if her Sister wore it, the Princess whipped around and faced her. Already, her eyes were starting to grow bigger and harder to turn down. She was a master at exploiting her older sister's knight and sister complexes...

The Knight narrowed her eyes, before sighing and removing her helmet. Allowing her much more beautiful face to come out into the open, and letting her long ponytail stretch further down towards her rear...

She was a beauty. But she did everything in her power to simply ignore her gifts. What an awful thing to do. But that was why she was being wrapped up in the Merchant's scheme. And why the collar would work wonders on a girl like her...

The Princess giggled as she helped affix the collar onto her Sister, smiling as she watched it match a pretty woman like her. Her Sister never did wear accessories, since she was almost always wearing that armor. But now that she had a nice collar, maybe she'd pick out equally pretty accessories so she could really be as pretty as she deserved to be?

The Knight wanted to say something about how little confidence she had in this collar. It felt beyond suspicious. To the point where she could probably fall victim to some sort of scheme. But she also didn't feel as if she could tell her anything...

She hadn't been told to tell her the truth after all...

...

Eh..?

"She truly looks stunning like this, Princess. Would you like a collar of your own? To match with your Knight is a sign of complete and utter trust, don't you think?" The Merchant said, blowing a little smoke into the air after a little huff from her Kiseru. Blowing the smoke into the shape of a devious little heart. They were both ensnared. Just this collar, and then...

The Princess didn't hesitate to take the collar from the Merchant, wrapping it around her neck without much thought. Grinning and giggling as she stared at her Sister with this bright look in her eyes. She was happy to be just like Sister right now. If not for their daily routines, the two of them would be on the road to looking nearly identical. Same shade of hair, same beautiful blue eyes, same collar, same dignity...

Yet, as she stared into her Sister's eyes, why did she feel a little bit of worry? Were her eyes... Dimming-

"Alright. Inside, you two. The wares need to be prepared."

Both the Princess and the Knight heard the Merchant, and their eyes went dim as the diamonds on their collars started to glow with an eerie hue. And as if they were nothing more than meat puppets, the two wandered into the home that belonged to the Merchant...

All while their bodies gradually got covered in that very same eerie hue. Wrapping around their bodies like it was nothing, stripping away their prior outfits. Nobody needed to understand that the two of them were a Princess and a Knight, not in the slightest...

Instead, the two were made to wear matching black outfits. Outfits that left nothing to the imagination. Whether it was up by their shoulders, at their cleavage, or down by their hips. Those areas were all mostly exposed, with only thin golden threads keeping them even slightly covered...

The rest of the outfit was incredibly tight, to the point where it was almost like a second layer of skin. A second shiny layer of skin that really brought out their inner thighs, their breasts, and everything else that might be covered...

Even their heads, as the Merchant pulled up the hoods that were part of their outfits. Their old identities were practically irrelevant at this point. It was why she obscured their selves, since that was not what she was selling. No, she was selling something much more important.

Two high breed slaves. Knife-eared elves that would do wonders in such a seedy auction. Especially with the curves that were developing as these outfits squeezed around them...

All while the two blankly stared forward, unaware of what was going to happen to them...

---

"Esteemed Ladies and Gentlemen, may I introduce the star item for tonight!"

Deep within a secluded bar, a seedy air ruminated. Partly thanks to the way the place had been maintained, being enhanced by several spells to make sure that the clientele would be able to enjoy themselves the best. Partly thanks to the clientele themselves, made up of all sorts of scum and villainy that would love to buy the different items on sale...

And partly thanks to the items themselves. Already, several lesser items had already been up for grab. Breeds that were less valuable than the two that the Merchant had managed to snag earlier. Humans, and other lesser races that were nowhere near known for their beauty as the Elves were. And now finally...

Finally, the two elves stepped onto the stage. The Princess and her Knight, though neither of them were anywhere close to identifiable as that. No, the only thing the seedy clientele saw was two equally lewd sluts dressed in the slave garb that made them pop so alluringly.

"These two elves are of the very highest breed in the whole Kingdom! Guaranteed to last you several centuries, guaranteed to serve your every whim and way. And thanks to their compatibility and their high breed nature, they can be anything you wish for them to be! Observe, if you will." The Merchant gave her sales pitch, before snapping her fingers.

Both of the slaves on offer responded to the snapping of her fingers, as their hoods popped down to reveal their hair. Hair that exploded outward into long beds of blonde hair, much more fitting for a type of regal bimbo that didn't understand the concept of cutting her hair while still grooming it obsessively...

It wasn't just their hair that exploded outward, so did the rest of their curves. Their busts, which had previously been rather modest and slim given their nature as elves, turned into massive udders that fit their brand new bimbofied image. Huge knockers that hung from their chests, begging to be squeezed into. Massive milkers, drooling milk as they continued inching outward, far surpassing the size of their heads...

Which was only matched by the plush nature of their hips and rears, both doing their very best to endure the individual strings that were digging into their much softer bodies. Not that they had any issue with how their bodies were being tightly squeezed by their own attire. If anything, the absentminded moans that came from the bimbofied elves only served to prove how effective their respective transformations had been...

The audience began to clap and holler at the sight and sound of what was on offer, prompting the Merchant to grin. They were being suckered in. Good. She hadn't wasted two high-tier collars on them just to be lowballed by the clientele.

"These two will be sold as a set. So bidding starts at 100 Silver!" She chimed, stepping back as to let the items serve as the only thing on the stage. The only thing to draw attention, the only thing to make these pitiful people part with their precious fortunes...

"200 silver!" "25 gold!" "400 silver!" "55 gold!" "1000 silver!" "500 gold!"

The bidding went back and forth between different people in the audience. Whether it was one of the wild orcs that no doubt wanted to use them as breeding stock. The dwarves that wanted to put them to good use as workers, dirtying the beauties in front of them as part of the tensions that still remained between the races. The humans, who no doubt wanted a pair of everlasting dolls or servants to keep in the family...

"600000 Gold."

But the one that ended up outbidding all of them was unsurprising. The client that the Merchant was most familiar with, the one that made shivers and sweat run down her back...

"S-Sold. To Lady Gloomwood."

The clientele fell silent, as two distinct sounds filled the seedy hall. The sound of heels clicking against the dirty ground below... And the sound of a younger girl giggling.

All eyes were on the winning bidder. The Dark Elf 'Queen' that had made a name for herself. It was difficult to tell where she had gained her fortune from, but she was part of each bidding at this establishment. Amassing a collection of high breeds and otherwise interesting slaves that caught her eye. And these two royals were no exception to that.

Although this time, she had brought a soul near and dear to her heart. Her daughter. At least, that's what the rest of the clientele thought of the young girl that was skipping at her side, giggling like the little rascal she was. And the two of them seemed to already have plenty planned for their new purchase.

"A pleasure doing business with you once more, dear." Lady Gloomwood said as she locked eyes with the merchant. Smiling as she was more than happy to see her investment pay off. Even if the merchant wanted to avoid gaining her attention for too long, knowing that the Lady was going to do things to her if she got the chance.

Thankfully, she turned her attention towards the two items. Reaching forward, grabbing ahold of that expanded flesh. Smiling all the while as she reached a hand up to the collar of the taller of the two bimbofied Elves. Letting her malicious hand slide across it, as the collar shone slightly in response to her touch.

"I need not a slave. But a new steed will do."

Lady Gloomwood's words echoed through the former Knight's ears, causing the bimbofied elf to whine as her outfit gradually started to shift. She wasn't going to lose the curves she already had, but she needed to look the part of a steed...

The outfit shifted and shifted, until it looked much more constricting than it had previously been. Her boots now looked like they had hooves at the bottom, and so did her gloves. Not only that, but the parts of the outfit that were wrapped around her torso looked less like an outfit, and more like a bondage harness. One that matched perfectly with the mask covering her eyes, the ballgag in her mouth...

And her long ponytail, ready to be grabbed and yanked in case she ever went against her new owner's wishes. Not that she would dare to do so. She was a loyal steed. A loyal and royal mare, ready to do whatever her Queen wanted her to...

"Ehe!" Lady Gloomwood's daughter chimed too, as she tapped the Princess' collar in turn. "I want another Mommy! One that'll spoil me lots and lots!" She made her own wishes clear. It's not that she didn't like her Mommy, she loved her. But Mommy was a busy woman. And she wanted a Mommy that she could bully too, one that she could treat like a toy!

The collar responded in turn, as decades upon decades quickly piled onto the Princess' everlasting form. Her young 500 year old body rapidly aged, making her look older and older as the seconds ticked by...

Until she simply stood there, wearing the same sort of garb as before. All while a new maternal smile fell on her expression, and she wrapped her lovingly submissive arms around her brand new owner. Her little adorable owner, who wanted nothing but to be spoiled by her dear Mommy...

The Princess did not see herself as a Princess any longer. No. She was the Dark Elf girl's Mommy. That was why her curves had begun to sag slightly as well. Because that was what her dearest darling wanted. To see a pretty Elf like her, tainted by the passage of time. So that she could be bullied for letting herself grow old and weary and squishy all over the place...

Already letting out moans as she felt her body getting squeezed, with her dearest giggling in turn as she toyed with her in front of everyone. In front of all the others that could've bought her....

Both the Princess and the Knight had been sold, just like that. To a Dark Elf that treated them as nothing more than her property. Nothing more than entertainment, whether in the form of a steed that she would be using for all sorts of heavy labor... Or in the form of an aged elf that was far too fertile looking for what she truly was.

A deep humiliation. Yet not one that the two were able to do anything about. Because they were tricked into becoming items to be sold to the highest bidder. Tricked into relinquishing everything that made them who they were...

And they couldn't be happier...