Tainted Diamonds

by LuckyLooper

Rating: mature
Tags: Porn, Sex, Fetish, Queen Chrysalis, Non-consensual, Anthro, My Little Pony: Friendship is Magic, Rarity
Length: 3040

Rarity is captured by Queen Chrysalis, who is very happy to have a new thrall. Commission for Tailsic.

Rarity awakens in a dark cave and finds herself face to face with Queen Chrysalis. The queen is intending to make a new sex slave, and she is not taking Rarity's input on the matter...

THE FOLLOWING FIC CONTAINS: Mind Control, Breast and Butt Expansion, and Mind Break.

This fic is a commission for Tailsic.

Published 2023-09-29 05:10:00 UTC
Last updated 2023-09-29 05:10:00 UTC

A Diamond Never Breaks

Rarity groaned softly as the feeling of consciousness came to her. She struggled to remember where she was or what she was doing before, and her throbbing head wasn’t helping. She could feel a cool breeze on her body, a distant part of her mind cluing her in that she was naked. Her eyes slowly cracked open, at first only seeing a dark blur of shapes. Focusing her vision, she found herself in a dimly lit room, hovering above the ground as she was suspended by her hands by something very sticky. Her first instinct was to light up her horn, but that failed to light up the room.

“W-Wha…?” Rarity shook her head to clear it. “Wh-Where… Where am I?...”

“Good morning, Rarity~”

The mare froze. She recognized that dual-toned voice anywhere. She darted her head around as best as she could to try and find the source of it. It wasn’t long before she caught the sight of sickly green, glowing eyes popping out of the darkness. The sight made her jolt in place out of panic, and the sight of a green glow around a hooked, holed horn made confirmation of her fears. All around her, small green flames burst to life, revealing the room to be composed of dark stone and the inhabitant none other than Queen Chrysalis.

“Ch-Chrysalis…!” Rarity scowled lightly as she tried lighting up her horn only to find it failing once more.

“That’s QUEEN Chrysalis to you, worm,” the changeling queen returned that angry expression, letting it melt into a much calmer one as she approached her prisoner. “But I will allow it for the moment as you don’t seem to know your place yet.”

“As… N-Ngh… As if I’d ever consider you my queen…!” Rarity retorted while trying to move her body out. “You best release me this instant, or-!”

“Or what? You’ll get your ‘friends’ to defeat me?” Chrysalis gave a haughty laugh. “They’ll never know you’re gone, not with one of my drones put in your place. By the time they’ll figure it out, well…” She ran a finger across Rarity’s stomach, making the mare squirm in place. She tried to kick at her, but she found that her feet were also bound to the floor, leaving her helpless to Chrysalis’s touch.

“Y-You believe you can break me so easily?... I am a diamond, beautiful and strong!”

“Oh, I believe you, my little marshmallow,” Chrysalis cupped Rarity’s chin. “But even Diamonds have a breaking point…”

She took a step back from the prisoner and loosened her dress, letting it fall to the ground. There, Rarity got a full glance at the changeling’s body, from large breasts easily triple her own size, child bearing hips, and an ass to match. All of that paled in comparison to the queen’s crown of her body: A long, thick green cock and large set of black balls. It had to be close to the size of her arm and quite thicker than that, and it wasn’t even hard yet!

Rarity didn’t let that break her confidence, however, and shifted her head away from her captor. “K-Keep that filthy, ugly thing away from me! I’ll never let you disgrace my body by pleasuring it!!”

“My my, insulting the queen’s hygiene?” She stepped forward once more, brandishing her rod. “I can assure you that my royal scepter is quite clean. However, I’m sure it can always be cleaner~”

“As if I’d ever do such a thing-!”

Suddenly, Rarity’s head darted to face Chrysalis, where she saw her horn glowing and keeping it firmly in place. The changeling slowly placed a finger on her lips.

“Shhhh… No more talking. Let me help you get into character…”

She leaned her head forward, her long horn touching Rarity’s goo-covered horn. Using the horn as a doorway to her mind, she slipped her magic in and began to plant seeds. Rarity’s eyes widened as she felt Chrysalis’s spell invading her mind. She did her best to move her head away, but the telekinesis ensured that her head was being kept firmly in place, gazing into those softly glowing slit pupils. Her rapid, panicked breathing gradually began to slow as her own eyes took on that same color.

“N-No…” She whimpered, leaning in a bit closer. “M-Must resist… B-But… So… Beautiful…”

“Hmhmhmmm, I am flattered, but don’t think that you’ll be succumbing to my spell just yet.” She slowly stepped away, releasing the spell and freeing Rarity’s head. She blasted the goo trapping the mare away, letting her fall to the ground. “After all, I quite like to play with my food~”

Rarity panted as she rubbed her head. She felt that soft pulse return, this time far more rhythmic which made it hard to gather her thoughts. She looked up and saw Chrysalis, and her mind couldn’t help but focus on Chrysalis. The dark grace and beauty was captivating, and she couldn’t help but stare just a bit longer…

N-No! she thought as she looked away. You must escape! You cannot be distracted!

She turned around, prepared to run in the opposite direction, but she only got a few steps when Chrysalis gave one command.

“FREEZE.”

Rarity suddenly stood in place, squirming. “W-What…?” She uttered, her eyes darting around. Chrysalis gave a smirk.

“STAND AT ATTENTION.”

Rarity’s bare body snapped in place, C-cup breasts giving a little jiggle. Her squirming was far more restricted, but Chrysalis wasn’t done.

“TURN AND MARCH BEFORE ME.”

Sure enough, Rarity’s body obeyed, turning 180 degrees and marching back to where she landed.

“H-How…?” Rarity said through gritted teeth. “H-How are you doing this…??”

“Quite simple, really. A little suggestion in your mind, and your body will obey me, even if your mind can’t for now~” Chrysalis snickered and eyed the mare. “Now… Let’s see my newest prize.”

She paced around the struggling Rarity, her eyes taking in every inch. After a moment of observation, she got back in front of Rarity. “Hmmm, I know exactly what you need, my pet.”

Rarity saw her horn glow and shut her eyes tight, expecting to be shot. The sound of magic filled her ears and suddenly, she felt a heaviness weighing down her front. It was enough to cause her to shift forward only for her body to stand back at attention. There was a slight dread as the back of her mind knew what it was but the rest of her was too afraid to acknowledge. Her eyes crept open and looked down, and sure enough, the white unicorn was now rocking a massive set of tits. Her cheeks went red as Chrysalis laughed in sadistic delight while her cock became hard at the sight.

“There now! The marshmallow has had quite a bit of fluff~” She mused, getting behind Rarity and grabbing hold of her massive mammaries. Rarity herself squeaked but kept her mouth shut as her breasts were roughly rubbed and squeezed. “What’s the matter~? Too strong to show how you really feel~?”

Rarity said nothing, looking away as Chrysalis leaned her head forward from behind.

“Hmph… No matter. You’ll reveal your true colors soon enough.” Her hands moved to the mare’s nipples, giving them a tight pinch and twist. This was enough to earn a squeal from Rarity, the sounds of helpless pleasure getting Chrysalis’s cock excited. The helpless unicorn could feel that once flaccid rod become harder between her cheeks, grinding back and forth and poking at her hole. “Oh, I know you want this cock… I know you want to feel it deep inside… To bend over and show your true queen your devotion…”

“N-No…” Rarity whined, squirming in place as she continued to have her tits fondled.

“... But you aren’t worthy of it.”

Rarity gasped as she was finally released, still standing at attention but no longer being groped. She was now staring at Chrysalis, who wielded her hardened cock before the mare as if expecting something.

“You will have to work for your reward. Now…” She pointed down. “KNEEL.”

Rarity’s eyes widened as she fell to her knees, now face to face with the mighty shaft of the changeling queen. She could feel a lump in her throat forming. Surely, she wouldn’t have to…

“Now, my pet. SERVICE YOUR QUEEN.”

Rarity’s hands moved to her tits, grabbing hold of them before shifting forward and trapping the queen’s cock in between them. She felt utterly embarrassed as she slowly began to stroke it with her breasts. She could feel the warmth of it as it twitched in front of her, and the moans of satisfaction from Chrysalis was salt to the wound. However, the more she stroked, the harder it was to remember what she was getting mad at. The sensation of pleasuring the green cock was oddly alluring to her, and before long, her arms began to move with a bit more enthusiasm. She couldn’t tell if it was the spell on her or if she was genuinely into this, but what she did know was that this dick she was giving a titjob to was starting to make her mouth water…

Chrysalis noticed this and gave a cruel grin. “Well well well~ Is somepony having fun serving their queen’s royal scepter~?”

At first, Rarity said nothing, her eyes transfixed on the luminescent cock she constantly stroked. Then, as if her brain finally buffered, she snapped to her senses and shook her head, even as she continued. “N-Never! I will never enjoy servicing this smelly… Th-Throbbing… D… D-D…”

“It’s a dick, darling. Honestly, some ponies can be so uptight and prudish.” Chrysalis rolled her eyes. “Well, if you’re not going to say it, I can at least find a way to make use of that mouth~”

Chrysalis roughly grabbed hold of Rarity’s mane before winding her hips back and slamming her cock right down her slave’s throat. The mare’s eyes widened as she got a mouth full of changeling cock, but the problems only persisted as she felt the rapid pistonlike movements it gave. Every thrust forced her tits to jiggle while they got slapped with the queen’s hot sack. Rarity tried to move her head, but the changeling’s aphrodisiac scent only compelled her to stay in place with her mouth held open. The girth of the shaft was more than she’d been used to, that is to say none at all, and she could feel her eyes watering as it filled her throat and forced her to breathe out of her snout.

“M-Mmmph~ I must hand it to you, pony slut, I expected you to be looser~” Chrysalis giggled as she pushed deeper. “This tightness… You really have been waiting for the one! Well you found her… Your one true queen!”

“M-Mmmnnngh!” Rarity’s eyes nearly bulged out of her head as she felt Chrysalis push the cock even deeper. Her vision blurred as she lied there limp, eyeballs rolling up. That moment led to her throat becoming as tight as a vice grip.

“O-Ohhhhh~!”

Chrysalis leaned forward as she pushed her cock all the way in, the throbbing getting too much for her. Unable to hold it in any longer, she unleashed a glowing green load like a fire hose right down Rarity’s stomach. She gripped onto that silky violet mane until she could cum no longer, by which point she pulled out with a few deep breaths and a look of satisfaction.

Rarity, meanwhile, looked completely out of it. Her eyes seemed to stare off into nowhere, whatever makeup she had running down her face. Any cum that she hadn’t swallowed dribbled down her tongue which hung out of her mouth as she attempted to catch her breath. The cum inside her led to her eyes getting a faint green glow as her mind filled with a lovely static and visions of Chrysalis’s body. Her perfect figure, her enormous cock, the way her piercing stare bore into her soul, it all took a heavy toll on her willpower.

Seeing the mare’s resistance died down, she gripped on the mane and pulled her up slightly, gazing down with a smug smile. “Oh? What’s this now? Where was all that fighting back you were giving me?~ I was starting to have fun with it…”

Rarity said nothing, only blinking slowly as her gaze very slowly lifted up to lock onto Chrysalis’s, attracted to it like a moth to a flame.

“There we go… I think you’re finally ready to receive my gift~”

With that, she pushed Rarity to the ground, her horn lighting up as Rarity picked herself up on all fours. She could feel a bit of her mind return to her, a tiny voice in the back of her head springing from the static.

Come on, Rarity…! Get up…! C-Can’t let her win-!

Those thoughts vanished for a moment as something caught her attention: a force seeping into her ass and a tingling sensation that only got better and better as she stayed on all fours. Her back arched as she let out a moan, the tingling spreading to her thighs. The moment she felt them touch, that tiny part still active knew that something was wrong and desperately pushed her body to look back. Sure enough, as she looked back, she found that, much like her tits, her ass and thighs were no longer slime and agile. They jiggled when she moved, and the feeling of that combined with the feeling of Chrysalis’s cock, now fully erect once more, between her thighs, was getting her snatch hot and bothered.

Feeling the heat of estrus coming off of her captive, Chrysalis ran her tongue along her lips and giggled in delight. “Very lovely… I can tell a slut like you is ready to become another helpless broodmare…” She slapped Rarity’s ass, making the mare moan. “Use this fat plot of yours and beg for it!”

No, Rarity! Don’t do it! Fight back! Resist!

“Y-Yes…” Rarity’s head slowly nodded as she moved her hips in order to stroke the Queen’s changeling shaft. “P-Please… Please give me…”

Don’t say it!, her mind screamed out as loud as it could.

“Give me your cock…”

Chrysalis laughed, smacking her ass again. “‘Give me your cock’, what? Who am I, you mindless worm~?”

“M-My…”

Wake up, Rarity!

“My… Queen…”

The remnants of her mind despaired at how easily she folded while Chrysalis laughed in triumph and moved her dick back, aiming the tip right at her folds. “Very good, slave. Your submission has earned you a generous reward…”

She rammed her cock inside her roughly, moaning loudly at the combined tightness, warmth, and wetness of Rarity’s pussy. It blended together to a perfect sensation that made her move harder than before. With her first cumshot, her hormones were raging and eager to give her pussy its fair share of jizz. Every thrust she gave pushed herself deeper down Rarity’s moist caverns, and soon, Chrysalis’s breath became heavy. She wasn’t sure why, but it was like her mind was becoming foggy with thoughts of pure animalistic lust. Green drool dribbled out of her mouth and down Rarity’s back. Her nails slowly dug into the soft flesh, and soon, the desire to breed had overwritten her grace and royal demeanor.

Rarity could feel as Chrysalis leaned into her fucking, tits pressing into her back. Sharp nails grabbed hold of her breasts and kneaded them like dough while she felt teeth biting on her shoulder. All the while, she was fucked without mercy on the cold stone floor, the queen’s hips ramming with the speed and force of a rabid beast. It was as if Chrysalis devolved to her most primal urges, and the more she had her womb slammed by the bitch breaker inside her, the more she too began to lose her mind. Even still, her body and mind tried to fight back, weakly squirming and pushing her body out to try and push her off while her mind tried to focus once more.

G-Guh, s-so rough… Her mind sputtered out as she squirted juices. H-Head… Fuzzy… C-Can’t… Think…

She felt as her face was pushed to the ground, right into a puddle of her own juices that continued to spray and leak onto the floor. Her own scent mixed with Chrysalis’s to mold her thoughts into nothing but sex. Even as what was left of her old self pushed back against those thoughts, all it amounted to was holding the coming tide with pillows.

M-Must not… give in… I-I am a diamond… U-Un… Un…

Her eyes rolled up as she unleashed a guttural moan, receiving another orgasm as her womb was finally pierced.

F-Fuuuuuck~! I-I yield! No more! I’ll obey! I’ll obey my queeeen!!

With that mental submission, her eyes flashed green once more as any sign of resistance vanished from her. She lied on the floor in submission as her queen pushed her cock in deeper. The feeling of twitching and throbbing inside her told her that her queen was close as the precum leaking from that shaft made the thrusts go even smoother and faster. As if her body already knew what to do, the walls of her pussy clamped down tight, squeezing out another immense load that made the white-coated mare’s stomach bulge out. The two lied there, breathing deeply as Chrysalis quickly regained her senses.

“Hehehe… Look at what you did, riling me up,” She commented as she pulled out and sat upon a nearby throne of stone. “You best come here and clean up your mess. You wouldn’t want your queen ruling with such a dirty shaft, would you?”

Rarity’s head slowly lifted from the ground, blurry vision focusing on her queen’s glorious cock. Her body shifted in delight as she slowly got onto all fours and crawled to it. As she approached, she began to lick off all the fluids from their lovemaking. Her mane and tail were a mess, her makeup was running, and her belly sloshed with cum. None of that mattered to her, though. All that mattered was serving her queen.

“Mmm, there we go. What do you say, my slave~?”

“... Thank you, my Queen…”