With the days ticking by to one of her favourites, Umbra eagerly made her way down to the castle dungeons. The guards standing in front of the door bid her entry with a curt bow, unlocking the magically-reinforced door that led to the darkness. Descending the ancient cobble-stone steps, Umbra found herself in an abyss of blackness, with no light to even push back against the all-encompassing void. She threw up her hand, casting a golden ball of light to illuminate her path.

She made her way through the winding corridors and multiple floors of the dungeon, avoiding the dead ends and traps that littered the entire place. She'd constructed the dungeon for one purpose only: to confuse and entrap those who ever dared make an escape attempt. Her architects had called her insane for commissioning them to create such an overly-complex and mind-boggling sub-layer. Every design specification she'd made had seemed like the wish of a mad-mare: no torches for any kind of light, every single corridor being the same length and attached to each other diagonally, doors that felt exactly like walls that could only be opened if a finger was pressed to an exact location for eight seconds.

The reason for this complex little area was to make a prisoner's escape, should it ever happen, damn near impossible. No light, no landmarks, no rhyme or reason to any of this place's designworks. Umbra was also the only person in the world that knew this place's proper layout, as the architects were hired to work on a single floor and were teleported to that floor by her hand alone. Initially, the dungeon was made to house the three Alicorn, each one depowered, blind-folded, and kept in opposite areas of the three mile dungeon.

But after Cadance and Luna had crumbled, swearing themselves to her eternal rule, this entire set-up was there to hold a single specimen: Celestia. And as the dark queen reached the doorway, a grin spread onto her face as she remembered what day was on the schedule for Celestia. She reached into a leather pouch on her belt, retrieving a large, black crystal from it and holding it close to her face.

She closed her eyes, funnelling magic into the enchanted rock and using it to summon three members of her own, personal guard. They were more of an intimidation method than anything, as these hyper-powerful unicorns were naught but a fraction of her godlike power. They were useful for controlling crowds, striking terror into the hearts of the public... and humiliation of a former royal.

"I'm certain the three of you are aware of what day it is?" she asked, tucking the crystal back into her pouch and grinning at the three, black-armoured stallions.

"Of course, Your Majesty," one of them chuckled in an eager tone. "Today's the day of the week where we help urge Celestia to renounce her false hopes and come into a more fruitful position."

"Indeed it is," she nodded, opening the door to her cell and walking inside, the stallions following behind her.

Umbra expanded the light's range, throwing it up to the ceiling to act as a chandelier of sorts, revealing her billion-bit prize chained to the wall. The ancient Alicorn looked to be in rough shape. Her naked body was bruised and beaten, charred marks on her hair and mane, as well as a swollen lip underneath her purple blindfold. As always, she made no motion nor sound as they entered the room, merely pursing her lips and preparing herself for what was about to occur.

"Morning, beautiful," Umbra said in a chipper tone, walking over to the larger creature and dragging a hand down her stomach, feeling Celestia tense as she did so. "I'm guessing the boys gave you quite a work-over last night? Who would it have been... ah, yes. The electrocution mages, wasn't it?"

Umbra gently toyed with Celestia's abdomen for several moments, waiting to see if today was the day that Celestia would finally break her silence and wish to be returned to the world above... but it didn't seem so. Rolling her eyes, Umbra moved her hand up Celestia's form once more, her fingers running through the former ruler's charred and matted fur before her hand closed around as much as it could of one of Celestia's enormous breasts.

Though she'd never admit it to anyone, she envied Celestia's body. While Umbra was no stick figure, far from it in fact, Celestia had hips, tits, ass, and thighs that made her green with envy every time she looked at her. Even in her underfed, abused state, the Alicorn still packed a rack larger than her own head, curves like a master-crafted hourglass, and a rear nearly as large as a man's torso. It spiked up a large reaction of anger and hatred inside Umbra once again, digging up old insecurities from a very long time ago, back when she and Celestia were in very different positions...

She shook her head, looking up at Celestia's beaten face with a smile. The pain of her body envy was alleviated slightly by the knowledge that Celestia was nothing more than her toy, eternally possessed by her and whatever she wanted to do that day. And today was one of Umbra's favourite days: humiliation. Celestia was a proud monarch, as graceful as a trained dancer, and as educated as some of the finest minds on this planet. So it brought Umbra nothing but pleasure to see her get fucked and used like a back alley whore.

She snapped her fingers loudly, Celestia's chains growing much longer and allowing her to fall flat on her stomach on the cold, hard, ground. Celestia made no more noise than a grunt as her large form hit the floor. She also barely flinched as Umbra stamped her boot to her face, crouching low and snarling at her as she spoke.

"I'm going to give you another chance, Celestia," she said in a dark, angry tone. "Swear fealty to me and abandon this pathetic crusade of yours... or I'll have my men turn your womb into a public use bathroom for the next six hours."

Umbra waited patiently for well over a minute, her glowing red eyes scanning every inch of Celestia's body as the time ticked by. After Umbra had decided she wasn't waiting any longer, she booted Celestia in the shoulder, forcing her onto her back, before turning around to look at her personal guard, each one already eagerly removing their equipment.

"She's all yours, boys," Umbra shrugged, using her magic to conjure a chair in the corner of the room as well as a chest full of reports she needed to read and sign off on. "I hope you don't mind putting on a performance for me. I could use some entertainment while going through this shit."

"Of course not," one of them shrugged, throwing away his leggings and stroking his rapidly-hardening cock as she stared down at Celestia.

"Any rules we need to keep in mind today?" a second one asked.

"If it can heal without leaving too gratuitous a scar, then it's fair game," she shrugged, sitting down and picking up a stack of parchment before summoning a quill and an ink well. "Bite, punch, kick, or whatever else you can think of. Just don't maim her, or I'll maim you."

"Point taken," they nodded, one of them kneeling down with Celestia and prying her legs open.

"That's all, gentlemen," Umbra shrugged. "Get to work on her."

And get to work they did.

She'd watched them perform many a time before, but their sheer level of enthusiasm never ceased to impress her. The way they set on Celestia reminded her of a pack of dogs that hadn't seen food in over two weeks. They barely knew where to start; one tearing her mouth open and lapping at her tongue, one groping her tits, and the last simply ramming himself inside her and fucking till he popped.

She enjoyed watching these little escapades thoroughly, saying that she did so as a method of watching the spirit of her greatest enemy be crushed underneath her power and her orders... but that was a total lie. The real reason Umbra spent hours of her life watching the humiliation is because it aroused her. Rough sex had always been the only sex she'd been interested in, and while she'd never gone so far as to throw herself to three horny stallions like she often did to Celestia, just the sheer level of testosterone-fuelled ravaging was enough to soak her underwear in a matter of moments.

She found herself spending a solid half an hour merely watching Celestia's facial expressions change and warp as they clearly wore her down more and more. Her quiet resolve had melted away to the mask of a harlot. She'd had her face stained with several batches of cum within the first hour, ropes and streams of the virile fluid matted her fur, covered her blindfold, and had dripped down onto her enormous breasts. Celestia knew how to keep herself resolved and calm during torture, leading Umbra to believe that she'd been taught to resist it over her lifetime.

But nobody had ever taught her to compose herself against pleasure. She panted, moaned, and screamed whenever they brought her to orgasm, no matter how reluctantly it happened. Her stomach had begun to swell rather noticeable as the third hour rolled around, pumped full by load after load and kept corked by the fact she barely went fifteen seconds without having a cock inside her.

Umbra began to notice that her guards were beginning to slow down at this point as well. Their thrusts packed nowhere near as much power as they'd done when they started, their bodies were clearly aching and exhausted, they needed much more recharge time between orgasms, and could barely seem to keep their erections unless they were inside Celestia. Rolling her eyes in annoyed manner, she called a timeout before summoning in other members of her personal guard, this time including a mare that was just as eager to rub up on Celestia.

"I'll offer you the choice again, Celestia," Umbra said, holding the new team off for several seconds, mostly just to watch the cum drain from her insides and pool around her on the floor. "Submit and swear, or continue to suffer."

Once again, the Alicorn said nothing.

"This mare is beyond stupid," Umbra spat, snapping her fingers and letting the new team ravage Celestia again.

Umbra then turned to the three that had exhausted themselves with their big white toy with a crooked smile on her face.

"When you're all feeling up to it, make sure to jump back in for a second round," Umbra said, sitting back down in her chair and crossing her legs over. "Don't worry if somebody else is in the hole already. She'll stretch out if you push hard enough."

With that, she went back to working through the financial request from the farmers on the outer edges of her dominant territory. She marked through several of their requests, mostly asking for newer equipment as theirs had begun to fail. Umbra signed off on each of them, but made a note on the side of each acceptance signature to send an inspection team to the farms before giving the equipment away to make sure they weren't running some kind of scam job.

After that, she shifted through to the more domestic requests: masonry, architecture, iron working. Boring paperwork for a boring job. After ten minutes of reading and signing, she found herself distracted once more, deciding instead to watch the only other mare in the 'orgy' proceeding to shove one of the stallions out of Celestia's stuffed cunt and guzzle down the overflow that came out, spilling a mixture of six stallion's potent seed down her chin and onto the floor as she did so.

Umbra made sure to make note of her, ready and willing to give her a rather hefty raise for her efforts in the line of duty. She shifted her sitting position, feeling her damp underwear rubbing against the inside of her legs as she did so, before trying to get herself to focus more on her work... only to end up giving on it entirely as soon as she saw Celestia having a cock shoved in every hole it could fit in, while the over-achieving female proceeded to suckle and knead her enormous tits with the palm of her hand.

This was what she had resigned herself to doing now. She knew it would come back to bite her in the ass if she continued to put off paperwork for another three hours, but the scene playing out before her was way too beautiful to not watch. She began to feel an ache between her legs now, her own rigid nipples pressing up against the plate armour through her undergarments. She gritted her teeth, digging her nails into the wooden chair she sat in, and forced herself to remain rooted in place. She would never be able to regain control or respect of anyone in this room again should she conform to her desires, strip down, and join in.

And while the beautiful mare and stallions, with her gorgeous, voluptuous tits and their enormous, throbbing cocks put on a show for her... Umbra couldn't stop looking at Celestia. That old mare had her in a trance that she couldn't get out of. Umbra knew why this was. The two of them had once had something long before they began to walk different paths in life. It was a fleeting thing, lasting no longer than a year... but even after a fire has died, the embers continued to smoulder, it seemed.

Umbra checked the time using her magic, seeing the sixth hour of Celestia's session soon approaching. She decided, with what little heart there was left inside her, to kill it off twenty minutes early and send her guard force back to their other duties. Once they'd left the room, Umbra moved over to Celestia, the once-proud monarch now lying in a pool of cum and sweat, panting with exhaustion.

She'd been fucked for six hours straight. No breaks, no rest, and the only fluid she'd had to keep her somewhat hydrated was cum. Every other mare that Umbra had ordered this on had been begging for mercy at this point, pleading and crying for her to never go through this again, and that they'd do anything for her.

But not Celestia. She remained silent and stoic as always. It went a long way to gaining Umbra's respect. She'd admired Celestia's resolve and her strength. But at the same time...

"Why are you still doing this?" Umbra asked the Alicorn, sitting down next to her with her legs crossed. "I don't understand, Celestia."

The Alicorn didn't answer. She never did. But Celestia was always a good method of getting out her frustrations, and she was going to do that once more.

"With every other person that's resisted this kind of treatment, they had a reason," she continued, drumming her fingers on her leg plate. "They've known a resistance was fighting to free them, they've had delicate information they refuse to give away, or they're doing it to stay strong for their friends and family."

Once again, nothing.

"But you? You have literally no reason to keep resisting me. Your family serve me loyally and have done so for many years now. Your people have all but forgotten you and happily live under my reign. Every resistance group that has ever lifted your flag or used your name to attack me has been stamped out in a matter of days. You have no kingdom, no information, no hope, and no reason to keep subjecting yourself to this."

Celestia breathed. It was all she ever did in these conversations.

"And it's not even like I'm going to kill you the second you give in," Umbra sighed, placing a hand on Celestia's cum-swollen stomach and petting her gently. "I've offered you a place in the modern world for so long now. You won't be a slave, either. You'll have your own house, your freedom... I'll even give you a job to earn money to pay for it yourself, if that's what you want. So why are you content to sit down here and waste the rest of your forever getting tortured and raped for no reason?"

Umbra leaned back, not taking any notice of the bodily fluids she placed her gauntlets in as she did so.

"Celestia, your family lives up there with me, still in the lap of luxury," she said, looking up at the ceiling. "Just give up this worthless charade, swear yourself to me, and I will treat you as well as I treat all the others... if only for old time's sake."

Umbra fell silent at this point, waiting to see if she'd gotten through to the cum-soaked Alicorn, only to see that she remained silent as she had done for over a century. Frustrated, Umbra got to her feet and made each of her summoned objects disappear, her teeth bared and her eyes alight with anger.

"If you're so content to waste the rest of time down here being my fucking torture puppet, then fine!" Umbra barked, whirling around and glaring at Celestia. "If that's the way you want it, then that's the way you can have it. I'll be spending the rest of my time with your family and raising my child, and I promise you that if you're so desperate to be somebody's plaything, then the first thing he's going to do when he turns eighteen is fuck a foal into you!"

With that, Umbra stormed towards the door, placing her finger on the magic mechanism and waiting for it to open... only to hear a sound that shocked her to the very core.

"I never took you for the motherly type..."

Umbra froze, her anger melting away from her instantly and being replaced with shock and surprise. She turned around slowly, seeing Celestia sitting up on her haunches with her knees pressed against her chest. Umbra slowly walked back over to her, eyeing her up in a suspicious manner. She didn't know why she was being so cautious. Celestia was no more a threat to her than an unconscious child was. She'd had her horn removed from the root the day she'd been defeated, and her wings had been so mangled in torture sessions that they'd just ended up being removed after eight months.

"Where are you, Umbra?" Celestia asked, unable to take the blindfold off due to her chains. "May I see you, after all these years?"

Umbra tore the blindfold away from Celestia. The Alicorn squinted in a pained manner, being exposed to bright light for the first time in over a century. It took her several moments to properly adjust, her retinas clearly burning in agony after such a long stretch of nothing being burned onto them. Eventually she focused her gaze on Umbra, looking her up and down before a gentle smile came to her face.

"You've grown your mane out," she said in a pleasant tone. "It suits you. Makes you look more mature."

Umbra was beyond shocked at this. A whole century of torture, over one hundred years of beatings, rapes, and other horrendous acts inflicted upon her, and the first thing Celestia did after opening her mouth was compliment her on her mane? She froze still for a long second, blinking quietly, before placing a hand to her head and sighing.

"Why?" was all she asked, looking down at the former princess.

"Why now of all times?" she asked, looking down at the floor. "Because you're about to go through something that will change you forever."

"And what's that?" Umbra demanded.

"Motherhood," Celestia said, wiping as much of the cum from her face as she could with the blindfold. "It's a holy experience that is more than definitely going to purge your evil heart."

"Of course it is," Umbra said, rolling her eyes. "I see this past century has made you rather delusional, no?"

"Have you selected a father yet?" Celestia asked.

"I... how did you know I was going to do that?" Umbra asked. "Who've you talked to?"

"Nobody. I just know how you work," Celestia shrugged. "You're a person obsessed with purity and perfection. You wouldn't dare fall in love with someone and risk polluting your gene pool with an inferior specimen. Since it hasn't been conceived yet, I'm guessing that you haven't even found a suitable partner, have you?"

"What if I have and you're wrong?" she asked, crossing her arms. "What if I'm already carrying my successor in my womb now?"

"But you aren't, though," Celestia said with a shake of her head.

"And how are you so sure of that?"

"Because you're a mare fuelled by pride and arrogance," Celestia smiled. "The second your egg had been fertilised, you'd have come storming down her and told me outright, just to make me feel inferior... which has always been your double-edged sword, hasn't it?"

"And what the hell do you mean by that?" Umbra growled.

"Your arrogance comes from a place of weakness, from insecurities," Celestia explained. "You haven't changed much deep down, Umbra. Your constant need to prove your superiority to other people has been present since the day we met. It's also the reason you haven't killed me after all these years."

"I haven't killed you because you're my trophy," Umbra snapped. "Having your entire family at my feet is the last true goal I need to achieve."

"You say that," Celestia said with a heavy sigh. "But the real reason you've kept us like this is for your own validation. The reason you want me especially is because you still think I'm better than you."

Umbra's eye twitched in an infuriated manner, bearing her fangs, and snarling in a rage beyond anything she'd felt in a long time.

"You can hiss and growl as much as you want, Umbra," Celestia said in an unimpressed fashion. "But we both know I'm right. You've always looked up to me, always wanted to be everything that I was. But you never could be... and you hated that fact."

"S-Shut up..." Umbra stammered.

"Everything you ever did was to impress me, was to make me compliment you on a job well done," Celestia continued. "You never had any confidence in yourself, and always needed a superior to tell you that you'd done something well, because you believed that if somebody amazing told you you'd done a good job, then you must've, right?"

"Shut up!" Umbra yelled, her temper flaring up again.

"And that same reason is exactly what you're so desperate to have me under your boots, isn't it?" Celestia asked. "You still think I'm better than you, and you're still looking at me to tell you that you've done a good job in beating and usurping me... isn't that right, Umbra?"

Umbra snapped. She cocked her hand back and slammed it straight across Celestia's face, cutting open her cheek on the metal gauntlets, and sending Celestia's head whipping to the side in an extremely violent manner.

"Don't you ever think to assume that you're better than me again!" Umbra roared, grabbing Celestia by the throat and lifting her into the air. "You are nothing compared to me, Celestia! That's why I'm the one with the unending reign, and you're the one filled to the brim with six different flavours of cum in a dungeon."

"No... the reason that you're in this position is because your stolen, unearned power just so happened to be greater than my natural strength," Celestia spat.

Umbra hit her again, cracking her cheek and causing more blood to spill onto the floor. She'd had enough of her at this point. She'd rather never hear the old bitch speak again if this was what she was going to come out with. Umbra conjured up a necklace, one of three she'd created that would make anyone completely subservient to her. She fastened it around Celestia's neck, the golden sun symbol on the metal band lighting up brightly. Celestia was swallowed instantly by the magic, as her lack of power had removed any defences she may have had against it.

Umbra dropped her, the ancient Alicorn landing hard on her knees and growling in pain. Umbra sucked in a deep breath, furious at the fact Celestia had managed to hit every exposed nerve she'd ever had in such an effective manner. Umbra had once thought she'd gotten past her petty tantrums and fits of violence... but trust a relic from her past to bring her childish nature back in force.

"Celestia..." Umbra said in a cold tone. "Are you going to say sorry now?"

"Yes..." Celestia said, looking up at her with glazed, pink eyes. "That was uncalled for."

"That's a good girl," Umbra said, petting her on the head with a victorious smile.

She was lying to herself about winning, though. Celestia had come out on top as the victor here and deep down, they both knew it. Umbra had failed to break her as she'd done Cadance and Luna. They served her under their own free will, as a testament to her power and greatness. But Celestia had managed to stay strong to the end, forced Umbra's hand, and now her servitude would forever be a testament to her failure.

"Get up," Umbra snapped, crossing her arms as she spoke.

"Right, sorry," Celestia said, stumbling to her feet, her movement impeded by the long chains.

Umbra shattered those with her bear hands, using her insane strength to shatter the steel links and free Celestia's hands and feet.

"Thank you, Umbra," Celestia said with a gentle smile. "They were starting to chafe something fierce."

"Don't... don't mention it," Umbra said, forcing herself to smile and to try and return to her calmer self. "Now, we're going to get you cleaned up, cleaned out, and ready for your new life, okay?"

"That sounds great," Celestia nodded. "What have you been doing with the other girls?"

"Cadance is working as a scribe for a living and Luna keeps herself busy as a tactical adviser," Umbra said with a glint in her eye. "But don't worry about yourself. I've already sorted out a career path for you."

"Really?" Celestia asked.

"Yes, you're going to be my whore," Umbra nodded, placing a hand on Celestia's cum-stained stomach. "That's perfect for you, isn't it?"

"If you insist, Umbra," Celestia chuckled. "Do you think you'll upgrade me to something else once you're not as angry with me?"

Umbra had forgotten about that part of the necklace. It didn't turn those under its control into a generic 'Yes, Master, No, Master' kind of person. They still kept their personality and sense of self, they were just incapable of saying no or refusing to do something if ordered to. So Celestia was still Celestia right now, but she would be completely obedient. That's where the sass was coming from.

"Yes, you cheeky bitch," Umbra sighed, rolling her eyes and taking hold of Celestia's hand to teleport them both. "But until then, you better work on using that tongue for something more intimate... oh, and before we go, do you have any qualms about a little bit of incest every now and again?"

"... No..." Celestia said, the strain on her face more than obvious as she tried to say yes.

"Good," Umbra chuckled. "Because I'm sure Cadance would love to show you just how much she'd missed her Auntie."

Next Chapter: Chapter 4: The Queen's First Inspection Policy Estimated time remaining: 41 Minutes