Rainbow Dash whistled to herself as she stared at the ceiling, her foot tapping against the metal bars at the end of her bed. For the fact that she had almost become an eternal sex pet to some mass of evil, she was quite chipper. Then again, that very event was why she was like this.

Nightmare had lost control. Rainbow had shown how fragile the alicorn’s control was, and she would be able to simply keep pushing her. Even if it resulted in her being maimed, it would be worth it to have everypony else see that their leader was flawed. That rebellion was possible. And Rainbow was in the perfect position to be a spike in Nightmare’s cunt.

Her eyes slid over to the door as he heard the lever be turned. It was about time, as she didn’t quite know how long she’d been up, but it was plenty of time to be bored. Still, if she wasn’t careful, Nightmare could do something drastic, and Rainbow thought it was probably too early in her plan to cause that.

When Nightmare walked in, shrugging off her cloak to show the same corset she’d been wearing with Twilight, Rainbow forgot about any possibility of tact. Instead, she rolled onto her side in a fit of laughter that forced her to hug her stomach. “Oh my Harmony, you look like a fucking gothic whore!”

Nightmare stopped for a few moment as she processed the odd response to seeing her like, well, this, before scowling. She had hoped her friends might leave more of an impact, but this… This was unacceptable. “You do realize what this means for you, especially while you’re undressed, correct?”

Rainbow was quick as a whip to rub her bare arms, her clothes having been ripped apart by the creatures that had threatened to rape her. “Oh, I really fucking hope so. I mean, with how chilly it is, I’d even be willing to fuck your fat ass to warm up.”

The heat within Nightmare lowered for a moment, before the ruler forced it back up. She wanted release, and this cunt’s bad attitude wasn’t about to rob her of it. Still, she had things to take care of that and dismissed the current way things were going. “Well, if you’re so eager, than you should be overjoyed to see this.”

Rainbow raised an eyebrow as Nightmare held aloft one of the collars. The pegasus's trained eyes could easily make out her own name on it, and Rainbow couldn’t help reflect on how stupid a thousand years on the moon made a pony. “Wow! Y-you mean, I’m going to get to own you?”

“No!” Nightmare slammed her hoof against the ground, the heat in her loins turning to a fire within her. Even if she wasn’t aroused, she was going to hurt this brat before too long. “It’s a mark of what you are. A pet, an animal, a thing. You are to wear it to show that.”

Rainbow put a hand just above her modest chest, mimicking Rarity perfectly as she said, “But oh deary me, it looks so garish, and that’s so embarrassing. Certainly, if I wear that, I’ll become a complete whore!”

Nightmare’s eyes opened slowly, before her new apprentice’s advice rang in her ears. That if talking fails, action can be much more persuasive. Show them that you can do it, even if they don’t think you can. Her initial legislation had turned many of the royals to her side by showing that she could be smart with the country, so now she had to do something to show Rainbow that she was to be taken seriously.

Nightmare’s horn glowed for just a second, and Rainbow could feel that she was in trouble. Despite how fast she was to fling herself out of the bed, it only meant that she was in the middle of the air when five black vines came up. Two for her arms, two for her legs and one last one that caught her entirely off guard.

One around her neck. It was tight, crushing her neck, and was the one that tore her back down the hardest. Probably for the best, she would think later, as one of her feet slammed against the bars at the end of her bed, almost breaking the appendage.

Rainbow wrestled against the bonds, her eyes beginning to water as she felt her lungs begin to burn. She couldn’t possibly breathe, not when a vice had been placed over her windpipe. Was this the end? Did she already fuck up this hard?

Luckily, after one more squeeze, Nightmare dismissed the one vine. She smiled at the marks left, scars around her neck, made purple by the magic. It was fitting for a thing like Rainbow Dash. She only hoped the mare had a quip to be made about what else was to come.

Rainbow couldn’t look up though. She couldn’t even speak still, as her lungs worried that the ability would be ripped away again to even breathe. Not even the fact that, after being so rough, Nightmare was gently sliding her hand along her thigh could get her to make a quip.

On the other hand, when Rainbow felt something against her nethers, she somehow found her voice. “Well, I never have been much of a bottom bitch, but I guess if that’s your kink, it’s my job to obey, right mistress?” She then stuck her tongue out before smiling again. “Though, really, you ask any of my friends and you’d know that I’m much for a dick.”

Nightmare raised an eyebrow, before narrowing her eyes and lowering herself so that their faces were a centimeter apart. “Good.”

Rainbow smirked back, before she lifted her head slightly to try to bite at the bitch’s nose. Instead of that, she found her mouth open in a yell as Nightmare thrusted forward. Despite all of Rainbow’s experience, she wasn’t lying about the bottom bitch part. She didn’t like being vulnerable or hurt. She’d rather be the one giving the pain. That meant a bone dry rod forcing its way into her tight folds wasn’t exactly pleasant.

Not that it was ideal for Nightmare either. Fluttershy had been lovely, but she’d been terrified of hurting her. Twilight was… fine, but she wasn’t exactly satisfying, not when she was trying to be smart with them. And this one… This one was just awful. The best thing she could think of so far was that Rainbow’s athletic body made her about as tight as her tentacle had been around the pegasus’s throat, and the friction was nice.

Rainbow shut her eyes, tears threatening to come back to their edges as more of Nightmare’s cock forced its way in. Thrust after thrust of pain and unpleasantness. Her body wouldn’t even instinctively give the bitch what she wanted, and Rainbow knew that she couldn’t either. It wouldn’t be her if she did. No, she had to keep up her bravery, or else…

Rainbow clenched her hands into fists, forcing all thoughts of losing out. She was too awesome to lose, and Nightmare was too lame. Some stupid cock wouldn’t change any of that.

She opened her eyes, forcing a smile on her face as agony poured through her body, and the want to cry grew from the forced happiness. Luckily, when it came to being a smarmy cunt, Rainbow could put on a pretty convincing act. “S-so, I hope y-you’re liking it as much as I am.”

The bonds on Rainbow’s wrists became tighter, threatening to break them as Nightmare’s rage blossomed to a new level. Even now, completely at her mercy, her slave still fought, still resisted and lied. It couldn’t be allowed. “Don’t lie. I can tell from your body that-”

Rainbow cut her off with a forced moan, as if she were in ecstasy. Admittedly, now that she was playing along, she could enjoy it to some level. Enjoy the fact that Nightmare couldn’t do much more than keep ramming her hips against a dry well. Enjoy the face she made. Enjoy the defiance that wouldn’t die in her.

Nightmare was done though. No trying to make Rainbow enjoy it. No, this was rape, and nothing else, so all restrictions were gone.

What Nightmare didn’t realize was what made the smile on Rainbow fade before her magic began. The alicorn’s face had purple markings beginning to glow on it, and the same, oppressive force that had attacked Rainbow before was coming back. It wasn’t just Nightmare above her now, but Nightmare aligning herself with exactly what her forces desired too.

Nightmare’s smile became crooked as her hands gripped into Rainbow’s nipples, squeezing them tight with the full brunt of an alicorn’s strength. A shriek of pain slipped through any remains of confidence that Rainbow had, and Nightmare, whose hair was rippling violently behind her, tilted her head. “Oh, more shrieks of pleasure, right? You just love,” pulling on them straight up as her hips crashed against Rainbow, “this sort of play with your mistress, right?”

Rainbow screamed again as was let down. This was bad, as her whole body wanted to shut down, to give up and do nothing. Her lungs could still work, and she took in a large breath, prepping for her sailor’s tongue. When Nightmare’s teeth clamped down on one of her nipples, threatening to split it open, her list of adjectives lowered to fit in an ear splitting scream. “Stop you fucking whore!”

Nightmare lifted herself up, smiling as she began to see the tears that poured down her slave’s face. It was delightful for her at this point, and much more pleasurable than the little, dry log she was rutting. “Come now, is it my tits or something? Because you’re the one who claimed to be enjoying being raped at first. Or,” she paused for a moment, “is it that you’re no longer because you’ve gotten used to this size?”

Rainbow blinked once, not realizing what Nightmare meant until she felt the cock come back in.

It hurt.

It only hurt.

It pushed into her, feeling like it was trying to force her organs out of position so it could come in. Rainbow could even see the mass in her as it bulged against her skin. It was agony, and her mind called for her to become quiet. To simply hide, as there was nothing to be done here.

And, with the next one, Rainbow gave in. She could feel the shuddering of Nightmare’s cock as it threatened to split her into two, threatened to break her, but she didn’t care. Whatever Nightmare was doing was not to her, because she had checked out.

And, Nightmare regained control as Rainbow went limp, having passed out just the moment before she came. The alicorn looked at the cum drenched cock and thighs below her and scowled with disgust at herself. She was supposed to be better than this, and yet this was all she could do.

She made her new piece of equipment vanish, thoroughly done with it, at least for the moment. Instead, Nightmare sat on the side of the bed, tired and angry. This wouldn’t be enough to break Rainbow. She had simply inflicted enough damage to make her retreat. Somehow she would need to find a way not to allow her to retreat, but the how escaped her, at least for the moment.

On the other hand, she doubted she would want to implement the how right now. If it weren’t for her stubbornness, Nightmare would have just driven a magical hole through the mare’s skull so as to remove her from the equation. She had decided that Rainbow would be one of her pets, and, even if it meant making a mindless whore by the end of it, she was determined to be successful in it.

For, as she was still teaching her student, Nightmare’s didn’t fail. They simply redoubled their efforts and forced their plans to work. Otherwise, they were just wasting the generosity of their backers.

Besides, even if the forces within her didn’t want everything, Nightmare would never have allowed for something she designated as hers to be taken away. Not after a thousand years of waiting to have anything.

Author's Note

To let you all know, the commissioner has had to slow this down to once a month for updates. If you'd like to help fund it, let me know.