Rainbow's Reign

by Art Inspired

Rating: mature
Tags: Twilight Sparkle, Main 6, My Little Pony: Friendship is Magic, Rainbow Dash, Other, Romance, Porn, Sex
Length: 4718

Twilight accidentally grants Rainbow the ability to enslave ponies just by looking at them.

Upon discovering an aging scroll containing a long-lost mind control spell in the Crystal Empire's library, Twilight comes to the conclusion that it must be tested. Thankfully, Rainbow steps up to the plate. Had Twilight anticipated the spell not working exactly as planned, she might've given Rainbow better instructions on what to do in case something goes wrong.

Knowing Rainbow Dash, this can only go so well.

Requested by superfun.

Published 2018-08-09 21:20:02 UTC
Last updated 2018-08-09 21:20:02 UTC

Part One: A Spell Like No Other

The air Twilight hurried through was grey and humid. She was just getting back from the Crystal Empire, and with the wind blowing on her mane gently, she stopped for only a second to look up at the sky, and noticed that she could hardly see any stars through the dense overcast. Secured in her saddlebag was a scroll she had insisted on taking home with her. Twilight had gotten only a few chances here and there to actually look at the writings within it, but when she did, she could tell that it involved mind control.

Nopony had perfected a capable mind control spell yet. At least, not one that worked correctly, so to find something so ancient, and barely in one piece was an amazing thing all on its own. Some of the writings were utterly destroyed, and to make matters worse, certain parts of it had these strange holes in it. This made the scroll even less legible.

These sections almost looked deliberately cut out, too, so that one almost couldn’t go through with any tests. Twilight wasn’t about to allow that to stop her, though. There was still enough in the scroll for her to proceed with the spell, or so she thought. She would have to improvise with the rest. Not only that, but the possibility of being able to teach ponies how to enslave others was obviously something Twilight had to keep secret.

Coming up to her castle doors, and coming into the grand establishment, she thought aloud, “Otherwise, if this spell were to fall into the wrong hooves, who knows what sort of mayhem might befall Equestria!”

Trotting along that evening in the hallways, and not even noticing the blue streaks above head hidden within the shadows of the chandeliers, Twilight continued talking to herself. "Now, of course, I’ll definitely have to learn it in case of another catastrophe happening." She whispered, "And… if I happen to end up having a little fun here and there, nopony will know."

The intruding pegasus above Twilight chuckled, and leaped again as silently as she could, but Twilight still heard her. The Princess quickly glanced around her shoulder, and then upwards, but with her seeing nothing there except the chandeliers wobbling a bit, she didn’t pay much else attention to the noise.

The Princess sighed, but continued with what she was saying. "Now... if Queen Chrysalis attacks again, this spell might be useful. After all, she swore vengeance on Starlight Glimmer..." Twilight opened the doors to the throne room, and entered, but hadn’t closed the doors just yet. She stood for just a second more, looking around, saying, "I’ll need an assistant… Spike wouldn’t work out. The scroll already describes how you can only enslave other ponies."

"So much for if a dragon moves back into one of the neighboring mountains again, like that one time. Huh, Twi?" Rainbow called out from behind her. Twilight gasped upon discovering that Rainbow had been listening in this entire time.

"Rainbow Dash?!"

The pegasus leaped down from the ceiling to give herself a dramatic entrance, and landed gracefully behind the doorway. "We’d have to get rid of it the old fashion way, rather than trying to enslave it."

"You were listening?" Twilight asked with great concern. "Wh-what’re you even doing here?"

Rainbow rolled her eyes with a grin. "Oh, come on, Twilight! I came to see how your visit to the Crystal Empire went."

Twilight stared at Rainbow, unamused.

Rainbow gave up after a few seconds of giving Twilight her best poker face. "Alright, fine!" She scratched the back of her neck in defeat. "I was headed home from helping Fluttershy with her animal sanctuary when I overheard you talking to yourself."

Twilight sighed, irritation in her tone. "I wanted to keep this secret, Rainbow."

"Hey, it’s alright," Rainbow assured Twilight while walking around her. "Why do you think I didn't stay in hiding? You need an assistant?" She leaned on her very own throne with a shoulder. "You got one."

Twilight asked Rainbow forwardly, "Really, Rainbow Dash? Are you sure? You realize I’ll literally be enslaving you, right?"

"Well, nopony else would probably wanna go through with something like having their minds enslaved," Rainbow confessed. "The way I see things, it would be a whole new experience! By the way, if you need to test the spell even more by giving me a few commands, just be... creative. Don't hold back, either."

She looked at Twilight in a way that always flustered her Highness, and for a second there, Twilight almost seemed to blush. She quickly giggled Rainbow’s suggestive comment away. "Right," Twilight said with a quirky smile. "I’d, uh, only enslave you for a minute, and then I’d quickly undo the spell."

Rainbow merely groaned at Twilight. "So, how do we go about doing this exactly?"

Twilight consulted the scroll. "To be honest with you, this spell is so old, and there’s parts where I’ll have to fill in the gaps... What I’ll be doing is…" Twilight double checked the scroll. "Yeah, I’ll cast it on you, I think. Then, you’ll become my slave!" She frowned, and said, "It… still sounds evil no matter how I put that."

Rainbow hoofed, and confidently stated, "No problem. I’m sure with you behind the wheel, everything will be fine! So, let’s get on with it."

Twilight unrolled the scroll some more. "Not so fast, Rainbow. I still need to read a little bit more, here." Her eyes moved back and forth while her hoof traced line after line, and while Twilight was so immersed in figuring this out to the best of her ability, Rainbow asked, "Anything I should know about?"

Twilight didn’t look away, but she still responded. “Well, for starters, I doubt you’ll remember anything after I cast the spell on you. After that, you’re free to go. I’ll probably need some privacy in order to catalog my findings anyways, and to get some rest.”

Rainbow flirted with Twilight even more by asking, “Guess that means I can’t spend the night, huh?”

Twilight rolled her eyes. “Where would you even sleep?”

Rainbow opened her mouth to speak, but Twilight cut her off before she got her chance.

“Nevermind! Don’t answer that, actually.” She still kept reading, too, fixated with making sure everything was just right. “I suppose I’m ready,” she said after finally rolling up the scroll.

Rainbow positioned herself as though she was about to be blasted through the walls. “I know I’m Ready!”

Twilight nodded, smiling. She had no awareness whatsoever of the tragedy that was about to befall her. However, she did notice her heart beating faster and faster. Rainbow felt anxious as well, but neither of the mares said anything about it. Soon, Twilight’s horn was in full glow, with pretty, pink sparks jolting every which direction.

The humming soon engulfed Rainbow, and it hardly felt like any such spell being placed upon her. If anything, were it not for Twilight’s aura growing brightly all around her, Rainbow might’ve questioned if Twilight was truly doing anything at all. It wasn’t until Rainbow began to feel herself levitate off the floor that she started feeling different.

It was a much deeper feeling of both warm and icy temperatures. Rainbow’s whole body felt lighter, with tingling sensations coursing through her hooves. She could’ve sworn she was flying without the use of her wings. Then, the sensations stopped abruptly, and Rainbow realized she had never even left the ground to begin with.

She collapsed, her whole mass feeling heavier than ever all of the sudden, and her head was spinning, too. Things turned bleak, but after colliding with the floor, through the shades of her eyelashes, Rainbow could see Twilight standing there. She stayed perfectly still, making Rainbow more than tempted to try and get up, but her hooves had gone completely numb.

Without question, if something had gone wrong, Twilight would’ve addressed it by now. With this in mind, Rainbow kept lying there, disoriented, and a bit confused. Eventually, she’d come around, and stand back up shakily only to ask Twilight without at first looking at her, “D-did it work?”

Twilight said nothing. Most of her face remained covered by her mane, but something about the whites of her eyes were irregular. Rainbow came close, not speaking a word. She rose Twilight’s head up with a hoof, and then bounded back with a gasp.

Twilight now looked at Rainbow with great attention aimed towards her. A spectrum line could also be seen beyond Twilight’s pupils. It remained stationary rather than twirling in circles, and even when she blinked, one could still see the colors doing their best to stay visible. Twilight stepped forward, and for a moment, it looked to Rainbow as though she were about to speak, but she didn’t.

She just looked down with a smile, and breathed out her nose rather hard. Rainbow asked her friend with worry, “Twilight? What’s happened?”

Twilight looked at Rainbow with a guilty expression, and revealed, “I messed up.”

This was not the answer Rainbow would've wanted at first, so she asked Twilight, “What do you mean you messed up?"

“Well, I thought I needed an assistant, and that I should cast the spell on them. Turns out I didn’t need an assistant after all, and that I should’ve cast the spell on myself. In other words, Rainbow Dash… I’ve just granted you the ability to enslave anypony you want, and make them do as you please.”

Rainbow backed away even more, right into the wall, and asked, “Wh-what?! How?”

Twilight came close to stand right before Rainbow, and said, “All you have to do is look at them, and they’ll be yours… Like me. I couldn’t free myself right now even if I tried, which I already have. At least I know the inner workings of this spell now, thanks to being one of your… subjects.”

Rainbow looked away, her choices piling up before her. Under normal circumstances, she’d be loyal, and give Twilight the command to undo the spell. However, these weren’t normal circumstances. Rainbow couldn’t place her hoof on why it was, but she could feel her cheeks turning redder after every word spoken by Twilight.

With her wings extending slightly, she asked Twilight, “I can… command you, Princess Twilight Sparkle... and anypony else for that matter… to do what I want, no matter what it might be?”

Twilight nodded, and though she still wore that same, unusual smile, she also looked worried. “Yes, Rainbow Dash. Whatever you want.”

Rainbow rubbed her chin with a hoof. She wasn’t that easily fooled into taking the bait, however. “Uh-huh, and Twilight? Just how do I know this isn’t a trap? Or a prank?”

Twilight blinked, but appeared to have nothing to hide. “Well, test it if you don’t believe me. Either that, or you could… you know. Have me undo the spell.”

Rainbow’s eyebrows raised, and she asked, “And miss out on all the fun I could have with this? Sorry, Twilight, but no can do!”

She looked around the room, and soon, her vision fell upon the shelves of books found directly behind Twilight. The alicorn turned around, and even gave a tiny gasp. "No," Twilight began to plead, but Rainbow ended that rather quickly.

"Are you, or aren't you my slave?"

Twilight's eyes glowed even more after hearing that, and she bowed her head. "Y-yes, Rainbow Dash. I'm so sorry. I am... your slave."

Rainbow backed away, and breathed before stating, "Woah... That's a little dark, actually. Anyways, here's what I want you to do."

Rainbow looked at Twilight who was waiting for her to respond. "What is it?"

Rainbow gave a sly chuckle, and said in a commanding voice, "I see these are organized in alphabetic order. Reorganize this bookshelf in a chaotic order instead! Simple enough, huh? There's no way you'd do that unless you were under some kind of spell."

Rainbow's confidence didn't matter, because Twilight was already getting to work. Her eyes were closed, but the spectrum lights kept seeping through her shut eyelids. When she opened them, she would be done, and Rainbow just stared. Twilight turned around, and gulped her frustrations away. "Inside, I hated doing that, but I have no choice."

Every last book was randomly placed. Some were even left opened, and placed on top of all the other books. Rainbow gulped while blinking several times at this, and she then paced the floor for a good minute or two. Then, she stopped, and looked at Twilight with squinted eyes. "Any order I give, ponies have to obey? I like that!"

Under her breath, Twilight whispered, "I don't..."

"What was that?"

Twilight scrunched her muzzle, and said, "I don't suppose you know what you'll do with that sort of power?"

Rainbow just kept looking at Twilight suspiciously, and said, "Well, first, I think I'll just let you in on a little secret." Then, with passionate eyes, Rainbow began kissing Twilight tenderly. Twilight, who seemed surprised at first started to loosen herself up to Rainbow, and even enjoyed it a little. Once their lips parted, Rainbow said, "I've had this tiny, silly crush on you. I mean, you're pretty good looking for an egghead! And, besides, it's not like you'll remember this. Right?"

Twilight breathed, and was about to tell Rainbow something else about the spell that she had only just learned of, but then, she stopped herself. Twilight would actually be remembering all of this, her being the only one due to also being the original spell caster, but she wanted to see the look on Rainbow's face when she told her this at the end.

In truth, Twilight planned to surrender herself to Rainbow for the time being. She just hoped that she could somehow work Rainbow away from the thought of leaving for even more pleasures elsewhere. Although, that was going to be a bit difficult under these wild circumstances.

Part Two: Twilight Sparkle

Twilight was instructed to lead Rainbow to her private quarters in order to avoid waking Spike up, and she did so with much more cooperation than earlier. She knew Rainbow Dash had only insisted on trailing behind so that she could stare at Twilight's slit whenever it wasn't being blocked by her swishing tail. Not only that, but her muzzle was getting awfully close, so Twilight slowed her pace. Rainbow took the bait, and right there in the halls, she began eating Twilight out. However, she suddenly stopped after only a mere lick or two.

"Mmh, C'mon, Twi! How am I supposed to tease you if you're practically forcing yourself on me?"

Twilight just smiled back at Rainbow. They soon reached Twilight's room, and opening the door for Rainbow, Twilight asked, "What do you have planned for me?"

Rainbow replied, "Close that door." Of course, Twilight did as she was told. Then, with them all alone, and nopony to disturb them, Rainbow approached Twilight with a glint in one of her eyes. She had on an attractive smile to say the least, but Twilight was still dying to know what was going to happen next, as if she couldn't guess.

Twilight turned back around, and asked again, "What's next?"

That's when Rainbow pecked her on the cheek, and said, "Ohhh, wouldn't you like to know."

She had begun making out with Twilight, and became more and more forceful with the way she handled the Princess's somewhat trembling body. She redirected the Princess to the bed, and laying her down gently, Rainbow asked, "Ever actually think about doing it with a mare?"

Twilight simply shook her head, and lied to her mistress. Rainbow nodded casually, but then, Twilight changed her mind. "Actually... I have, and it was just recently, too."

Rainbow asked while resting next to Twilight, "With who?"

Twilight blinked a few times, and said, "I thought about you, actually." This made Rainbow raise her eyebrows, and nestle closer. "I remember being in the shower, touching myself... and then, you came to mind."

Rainbow stroked her hoof along Twilight's flank, and asked, "Is that so?"

"Mm-hmm... Although, it wasn't like the real thing." Twilight looked into Rainbow's eyes, and said, "You may not believe it, but... I've started to feel magnetized by you as well, like tonight. We just can't hardly keep away from each other, huh?"

Rainbow's breathing had gotten more and more intense, and finally, after hearing something like that, she just knew she couldn't hold herself back any longer. She had to have Twilight then and there. She just kissed Twilight again in order to shut her up, and got on top of her. With their lips still connected, and Rainbow's torso firmly pressing against Twilight's, she commandingly held Twilight's hooves down. She fooled around for a second or two longer, but eventually, she ended the kiss, and started bringing her head above Twilight's stomach.

A sly smile began to form on Rainbow's reddened face as she came even closer to Twilight's lower waist, and just before digging in, she pointed out, "There's a first time for everything!"

Her tongue dragged upwards along Twilight's moistening lower lips, making Twilight feel even more irregular. She allowed herself to release a quick gasp, followed by a moan caused by how pleasurable Rainbow's tongue felt, but she immediately regretted doing this. It had only encouraged Rainbow to deepen her intimacy with her poor, needy slave. Kissing Twilight's clit tenderly, Rainbow sank her muzzle down deeper, and more aggressively.

Rainbow backed her head away only for a second or two, and stared at this part of Twilight's body with a pleased grin on her face. She was becoming lost in how tantalizing the view really was. She had fantasized about doing this to Twilight so many times before, and in so many different ways, but to be able to bring Twilight's dripping wet marehood into her mouth just then was something else entirely. It was everything she had imagined, and so much more.

Throwing her head back, desire clearly visible in every twitch she made, Twilight could no longer hide just how unprepared she really was for this. With it being a new experience for the Princess, Rainbow could tell that Twilight was reaching her breaking point already. Even with this in mind, however, Rainbow didn't cease her onslaught of Twilight's slick folds. She just kept licking, and panting against Twilight, making her Highness's vision go blurry with ecstasy. She had to close her eyes, and warned Rainbow as best she could, "R-Rainbow... You're too rough...! I'm gonna..."

Rainbow didn't listen one bit. She was far too wrapped up in trying out some new techniques on Twilight. Besides, she figured she might never be able to use them again. Even as Twilight came, Rainbow made sure not to go easy on her, not for a second. Twilight didn't help Rainbow relax, either, with the way she was unable to control herself, and clenched onto Rainbow's head with both her front hooves just as she climaxed. Upon her finally finishing up, she'd plopped down on the bed, panting with dizziness still visible within her eyes. Rainbow gave Twilight a break, and wiped her mouth with a tissue.

"Hehe... I knew you'd cum quickly, but not that quickly!" Rainbow stood above her mare, and said, "I hope you don't expect me to be fast like that. I want this to last a good while."

The inner Twilight broke free for a second, and the enslaved mare sensed the real Twilight wondering, for just a second, "I hope she's talking about the sex, and not the spell..."

The pegasus turned around, and bent down to present Twilight with her own marehood, and said, "Your turn, Twilight! I command you to eat me out, right now."

Twilight's eyes widened wildly upon receiving such a directive. With little choice, Twilight took one, small lick without much emotion in they way she did it. Although, she then waited for a split second. Then, another lick, and then another, until soon enough, Twilight was smothering Rainbow's quickly loosening slit. "Wow, Twi... I... didn't know you had it in you!"

Neither did Twilight, but that was the power of the mind control spell. She was determined to follow orders no matter what, bringing Rainbow to begin eating out Twilight's already well used hole yet again. Twilight then did something that Rainbow hadn't quite expected of her just yet. With great amounts of talent, she began softly nibbling on Rainbow's clit just perfectly enough to force the pegasus into a miniature orgasm.

Rainbow had to stop for a couple of seconds while Twilight did this in order to groan, and sank her shoulders. One eye was closed as she continued to lick Twilight in return. It seemed that the harder Rainbow tried, the better Twilight somehow became. She just kept trying to get Rainbow to cum as fast as possible, sinking her tongue in and out at nearly the same speed as Rainbow had achieved. By now, there was no denying it. Rainbow had been backed into a corner by Twilight, and the Princess herself didn't even know it. Rainbow was so close, that she could feel the sensation of sweet release coming along with every twitch of her thighs.

"T-Twilight... Y-you win... You can st- hah!"

It was too late. Twilight had reached the goal assigned to her, and Rainbow was climaxing at last. For Rainbow, it was far too spontaneous for a mare of her stature to be overtaken, especially by somepony like Twilight. Still, there was merit to that. It also meant that Twilight was more unpredictable than Rainbow had originally thought. While she laid down on the bed to take a breather, Rainbow complimented Twilight, "That was... actually pretty good, Twi. Where'd you learn to do that?"

Twilight blushed, and said, "I tried to mimic you as best I could, and I guess that I also improvised."

Rainbow huffed, and said, "Well, either way, thanks for that. Now then, how about we make this more interesting?"

Twilight just blinked, and asked, "How are we going to pull that off?"

Rainbow just smirked, and said, "Well, if I had a strap-on right about now, or... a ball gag...?"

Twilight just stared at Rainbow with an unamused expression, and said as she rolled her eyes, "It'll take some effort on my part, but yeah, I can make you a strap on for a short while. You had better be appreciative."

With an answer like that, of course Rainbow was going to respond positively. "Sweet! That's totally awesome of you! Well? Whip it out already!"

All Twilight could do was roll her eyes, shake her head, and summon Rainbow's toy for her. As she did, she noticed that Rainbow could hardly control herself. She just kept right on staring at the light that was forming in front of Twilight with an all too eager expression that seemed to say, "I'm Rainbow Dash, and today, I'm gonna ravage my best friend silly!"

Soon enough, the strap-on was complete, and Rainbow could now use it as she pleased, but Twilight already knew good and well how Rainbow intended to use it. She quickly equipped it like a pro, using only her hooves with no help from Twilight's magic what so ever. Donning it nicely, and looking at Twilight with dominating eyes, she instructed Twilight, "Get on all fours for me, my pet..."

Twilight did as her master wanted, and presented herself, also preparing for what was to come next. Rainbow, however, just waited, teasing Twilight. She wanted to hear her beg. "You want this?"

"Huh?" Twilight asked, looking back. Upon seeing what Rainbow was doing, she immediately became agitated, and looked away. She knew what Rainbow wanted, so gulping, Twilight breathed in so deeply that even Rainbow might've noticed. "Uh, yeah, I do want it..."

Rainbow just gave her slave a look of disappointment, and placed her toy on Twilight's cutie mark. "I don't believe you. Beg for it like a bitch!"

Twilight just gasped, looking back at Rainbow, and then at the strap-on. Things were getting intense for Twilight, because in truth, Rainbow really was doing a good job at sporting that thing off. She merely bit her bottom lip, and sighed in defeat. It was more like panting, however. "P-please, Rainbow! I can't go on without you any longer," she writhed, overly dramatic. "Put it in me... Make me yours right now!"

Rainbow smirked, and said, "A little bit cheesy, but not bad. I like cheesy!" Then, clearing her throat, she mimicked Twilight's tone, "Alright, you want it that badly? Well then, here it comes!"

Rainbow's entrance was more enjoyable than Twilight had expected it to be. Even though Rainbow couldn’t feel it directly, Twilight was without a doubt clenching herself around the strap-on, squeezing onto it so hard that Rainbow wouldn't have been able to leave even if she wanted to. Soon, she picked up a pace of her very own, and while the thumping of her thighs against Twilight’s flank became more and more frequent, she asked, “Are you alright, Twi?”

Rainbow scrunched her face a little as Twilight’s clenching hole massaged her pretend prick, helping her stay in motion, too. She payed attention to Twilight’s own amusement, and after four good pumps of her own occurred, followed by a smile, Twilight nodded. “Yeah,” she said, nearly whispering for Rainbow, her breath nearly nonexistent. She gasped with raised eyebrows, and then sighed, “You’re... just amazing, Rainbow!”

The pegasus lingered with just her very tip inside, revelling in the way Twilight was tugging at her. Rainbow buried herself again, and this time, she refused to hold back. The contact made a wonderful sounding smack, making Twilight gasp yet again, and Rainbow groaned, mouth open with pure, perverted amusement. "I love that look on your face. Just... let yourself go, Twilight. You'll feel much better after you do."

With her eyes drooping, and her entire body losing its ability to resist the pleasure washing over her, Twilight reached another orgasm, this one being much more powerful than the last. "Hah..."

She didn't make many noises, but the ones she did make were satisfying in Rainbow's opinion to say the least. Not only that, but to see Twilight cum like this at last, helpless and taken because of her very own previous actions was almost enough to make Rainbow want to stay. Almost.

Leaving Twilight there on the bed, Rainbow huffed, and the strap-on disappeared. A good amount of sweat slid down her forehead and back. "Well, that was enjoyable... Although, I think I'll be going now. I've got lots more fantasies to live out, and I'm sure you could use a break."

Twilight just whimpered as she tried to get up, and said, "Are... you sure you don't want me to..."

Rainbow stopped from opening the door, and looked back at Twilight. "What is it?"

"You know... remove the spell, and we can have some fun without me being like this? I think you'll find me much more appealing that way, rather than if you... choose otherwise."

Rainbow chuckled, and said to Twilight, letting her know yet again how clueless she could truly be, "And miss out on an opportunity like this? I can control whoever I please! Don't worry, I won't go overboard, and besides, I don't even know if the normal Twilight could even understand what's going on. It could get embarrassing, trying to explain..." Lazily, she finished her ill decision with, "You won't remember any of this anyways, so I'll be back soon! Alright?"

Twilight's top lip quivered. Then and there, she literally tried to say aloud, "I'll remember once the spell is over!"

What came out was, "Okay, Rainbow Dash... A-as you p-please..."

Rainbow chuckled, and left Twilight there, all alone. Needless to say, Twilight was beyond regret. She just hoped that after all of this, she would be able to find it in her heart to forgive Rainbow. Although it was somewhat Twilight's fault, predictably, Rainbow would have to do something pretty extraordinary in order to win back Twilight's favor after all of this.