Locating Celestia and Luna turned out to not be terribly difficult. Once Twilight left her own prison cell, she entered a tiny hallway, just long enough for one more door and an opening into a long stairwell upward. The other door looked exactly like the one that had just been locking her inside. She would have known it was Celestia and Luna’s cell even if she hadn’t heard their voices screaming from the other side.

“Shining!” She yelled. “Help me open this door – they’re being tortured in there!”

There were no door handles or visible latches on the outside of the door, either. And to his credit, Shining Armor tried a few spells of his own – mostly amateurish stuff compared to the powerful spells of unlocking and opening she was trying … but of course, none of that was effective.

The voices inside reached a fever pitch just as Shining exhausted his limited vocabulary of spells. He listened at the door. “Uh, Twiley … I don’t think that’s actually torture you’re hearing...”

“But what else could they—?”

The door opened on its own, revealing Celestia and Luna – both sweaty and panting – on their way out.

When they spotted Twilight and Shining Armor, they stopped short, Celestia first and then Luna a scant moment later.

Luna was the first to wipe her lips and muzzle into some semblance of cleanliness, though. She cleared her throat and jabbed her sister in the side, which led to Celestia hastily doing the same.

Celestia cleared her throat once her muzzle at least wasn’t dripping anymore. “Hmm... What do you say … we won’t inquire as to how you opened your door if you do not inquire as to how we opened ours?”

Twilight glanced over at Shining. She held her tail close down against herself, hoping she wouldn't drip any more cum … at least not where Celestia and Luna could see it. “Sure. That sounds fair.”

“Now...” Luna looked toward the stairwell. “Let us seek out Nightmare Cadance once more and end this!”

* * *

This time in the throne room, Nightmare Cadance awaited them without subterfuge. She sat on her crystal throne with her hind legs crossed in front of her, and she smiled sweetly when the three princesses – and her husband – ran inside, horns already blazing with defensive spells.

Cadance, however, didn’t move. She smiled at them all and nodded politely. “Welcome back, everypony! I’m glad to see you all together.”

“Stand down, Cadance,” Celestia said, “or we will end this.”

Cadance only shrugged. “What? You want this to end? Has your trip to my lungeon not changed your minds?”

For a moment, Celestia was taken aback. “… Lungeon?”

Luna sighed and rolled her eyes. “It is a portmanteau, Sister. Love dungeon.”

“Finally!” Nightmare Cadance grinned. “Somepony gets it! Let me tell you – it took quite a few workers to convert the old trap dungeons from Sombra’s reign into something more suitable for my own purposes, and none of them ever understood that without asking. Bravo!”

Twilight shook her head. “None of this matters! Cadance, you have to stop this now, or we’re going to make you stop.”

Nightmare Cadance looked positively hurt by that … in a condescending, melodramatic way. “Oh come now. Did the experience teach you nothing?”

“Well...” Celestia glanced at the other two princesses before leveling her gaze at Nightmare Cadance again. “I suppose we all have discovered some new things about ourselves...” She shook her head slowly. “But Cadance, this must stop. You’re bringing Equestria to a grinding halt! Ponies can’t do anything but have intercourse with each other all the time. We cannot survive like this!”

Twilight took a deep breath. This was going to be hard to say, especially in front of the other princesses. She hoped they wouldn’t think her a traitor for it. “Honestly, I’m not totally sure I want this to stop entirely...”

“But please,” Luna added, “be more reasonable about it – let ponies take a break to eat, sleep … maybe even work and seek to better themselves.”

“You would want ponies to sleep, wouldn’t you?” Nightmare Cadance said with a sigh.

“We all do,” Twilight insisted. “Equestria is going to fall apart if ponies can’t sleep … or do everything else they need to. Can’t you see that? What’s happened to you, Cadance?”

“What’s happened to me? I’ve seen the light, that’s what’s happened to me! These moments of passion are the best parts of any pony’s life. Surely you’ve seen that now, surely you know! You would not have been able to leave your cells if you had not discovered it for yourselves. Why shouldn’t ponies enjoy such perfect moments as much as possible? I’m turning Equestria into the most wonderful place in the world! A place of constant ecstasy! But if I let you three have your way, Equestria will be nothing but a—”

“Cadance,” Celestia said, he strong voice cutting through Nightmare Cadance’s rant. “I have a proposition for you.”

Nightmare Cadance seemed a little taken aback to be interrupted in her own throne room, but she leaned forward. “Yes?”

“If we promise to stop trying to vanquish you, will you promise to make sure your love spreading doesn’t harm anypony?”

Twilight looked at her, gaping. “You … you can’t be serious!”

“I’m entirely serious,” Celestia said, the tone of her voice proving it as much as it was possible to be proved. She kept looking straight ahead. “Cadance?”

Nightmare Cadance squinted down at Celestia. “How do I know this isn’t a ruse? That you won’t go behind my back and try to defeat me once my guard is down?”

“What?” Luna’s voice squeaked with indignation. “Do you no longer trust us? The most upstanding ponies in all the land? What do you want, a contract signed in blood?”

Grinning, Nightmare Cadance looked down at them all. “No, not in blood. In something more powerful – more primal.”

“So you’ll accept the truce?” Celestia asked, stepping forward to draw Nightmare Cadance’s attention back to herself. “So long as we sign the contract to your liking?”

After giving all three other princesses a long, piercing look, Nightmare Cadance nodded slowly. “Yes. Yes I will. Are you prepared to sign? All of you?”

Celestia nodded first, followed by Luna … but Twilight wasn’t quite so sure. “What exactly are we going to be signing with?” she asked.

Nightmare Cadance chuffed out a little laugh. “Well, I suppose I might as well demonstrate it on myself first...” Her horn glowed brightly, with a distinctly odd pattern to it. It was love magic, certainly, but the way it curled back down her horn and ran along her body in curving lines was just bizarre. Almost like some strange combination of love magic and transformation magic.

All those glowing, curving lines wound their way around her body in unexpected ways, all following their original curve unerringly … and yet, they all seemed to find their way down between her legs.

And she graciously spread those legs for them, so there would be no ambiguity at all about what was happening. Twilight could see everything her sister-in-law had to offer down there – teats, vulva, everything. Soon, though, the list of what she could see grew rather more extensive. In the space between her teats and her pussy lips sprouted a glowing sheath and pair of balls … quite sizable ones. And as the glow faded, leaving real flesh-and-blood organs in its wake, Nightmare Cadance’s cock began to emerge from her sheath, quickly rising to a very impressive size.

“Oh,” Twilight said simply.

“You’ll do it?”

Twilight nodded. She’d heard of such magic, but she’d never been able to see it in real life before. This was actually … well, she wouldn't admit it to anypony, but it would actually be kind of exciting to try it out.

“Wonderful.” As Nightmare Cadance sent her special magic spiraling out around all three of the other alicorns at once, she turned to her husband. “Shining, honey... Write up that contract for us, won’t you dear? You heard the terms.”

Shining Armor saluted and rushed to the royal secretary’s desk, already pulling out paper. Was he still under Cadance’s spell, or was he still just that loyal to her? Twilight had no real way to tell.

Soon, though, she had more important things to think about. Primarily, the strange new feelings coursing through her body. There was a curiously heavy sort of tingling down between her hind legs. She craned her head around just in time to see the glow fade, leaving behind a thick sheath and a very healthy set of light purple balls.

By the time she looked back up – it was an intensely interesting view, after all – she was also beginning to slip out of her sheath … and Nightmare Cadance was already off of her throne, walking toward the three of them.

“Now,” she said, “while he’s busy writing up the terms, you three had better dip your pens in an inkwell...” She grinned lasciviously, turning to present her hindquarters to them with tail raised. “If you know what I mean.”

Having paid more attention to Cadance during their own transformations, Celestia and Luna were the first to reach her. At almost the same time. Celestia glanced over at her sister. “Well, you are Princess of the Moon, are you not?”

“Despite rumors to the contrary, Sister, that does not imply anything about my erotic proclivities.”

“But...” Celestia raised her eyebrows.

Luna rolled her eyes. “But that does not mean I object to such an arrangement.”

Smiling, Celestia used her magic to pick Cadance up and lay her down on her side, right there on the throne room floor. She took her place kneeling behind Cadance, her already-hard cock getting lined up with her niece’s pussy.

Luna, meanwhile, had also managed to get fully erect – just from the anticipation? – and she laid right behind Cadance, in a sort of spooning position, her own cock nudging up toward Cadance’s tail hole.

And that left Twilight with only one option: she quickly trotted around in front of Cadance, kneeling down much like Celestia. Her new cock – purple, mottled, and huge – laid down across Cadance’s face. Truth be told, after doing this for her brother only a little while ago, she was eager to find out just what it felt like.

As it turned out, she wasn’t the only eager one. Even as the first entry of Celestia’s and Luna’s cocks made Cadance moan, she tilted her head toward Twilight’s cock, expertly taking it in her mouth.

It was then that Twilight learned just how outclassed she was in the blowjob department. Shining must have liked it from her just because it was her doing it … because compared to what he was used to with Cadance, she just was not up to par. Not only did Cadance manage to swallow Twilight’s enormous new cock all the way to the hilt in one easy motion despite all the distractions she was getting from behind, she managed to do so with style. She twisted herself a little as she did it, running her tongue along Twilight’s length in a teasing but yet oh-so-satisfying way. Twilight could feel it right through the root of her cock all the way through her whole body. And when Cadance pressed herself just hard enough against the sheath, she could stretch out her tongue and manage to lick Twilight’s balls a little at the very same time.

Twilight moaned in the sudden bliss … and she wasn’t alone in that. Both Celestia and Luna sure seemed to be enjoying their respective holes, judging from the well-satisfied sounds they made. Did being the Princess of Love imbibe even her pussy and asshole with special ability on par with her mouth? Twilight couldn’t imagine it … but she couldn’t discount the possibility, either.

The four princesses quickly got into the swing of things, building up a complex rhythm between them all. Luna was the slowest, taking it easy with Cadance’s ass. And yet, she kept things in perfect sync with her sister by giving exactly one thrust for each two of Celestia’s. Twilight herself let Cadance mostly set the pace for her, plunging her throat freely down onto Twilight’s cock. What could be better than the Princess of Love’s expertly chosen pace, after all?

The position they were in left Twilight right across Cadance’s body from Celestia, and once their eyes caught each other, it brought a devious idea to Twilight’s head. Well, why shouldn’t she indulge a little? She’d already broken so many boundaries today, and it wasn’t as if a little kissing was any more intimate than rutting the Princess of Love from both sides at once, now was it?

When Twilight leaned far forward over Cadance’s rhythmically moving body, Celestia reciprocated by leaning closer herself. The touch of her mentor’s lips was electrifying to Twilight. Without even thinking about it, she pressed her cock more deeply into Cadance’s throat … which Nightmare Cadance took without the slightest complaint. Unfortunately, though, the kiss was doomed to be short-lived. Just as Twilight first dared to slip Celestia a little tongue, Luna’s voice cut in.

“Oh Sister... Might I have another taste of you?”

Celestia pulled away from the most incredible kiss of Twilight’s life to bend low and to the side instead, where Luna raised her head to meet her, the two of them joining in a sloppy, passionate, incestuous kiss. The two of them didn’t falter in their rhythm inside of Cadance in the slightest.

Twilight might have felt a tad left out … if Cadance hadn’t seen to it that she was taken care of in other ways. The Love Princess’s horn glowed, and Twilight felt the tingling, coruscating touch of Equestria’s finest love magic against her pussy lips.

And it didn’t stay on just her lips for long. After teasing her for just a moment, it plunged inward, suddenly surging to fill Twilight’s entire inner depths. It didn’t stretch her with warm girth like Shining’s cock had. In fact, it took up hardly any room inside her at all. But that didn’t stop it from perfectly massaging every bit of her inner walls, all at once.

Overwhelmed, Twilight lost her balance. She fell over sideways, her cock still inside Nightmare Cadance’s mouth.

Somehow, though, Cadance seemed prepared for that. She got one foreleg out of Twilight’s way just in time, so that she was able to wrap it around her body once she fell. And then with a grip around both sides of her, she drew Twilight closer, down along her own belly.

And that was how Twilight came face-to-face with Cadance’s as-yet-untouched cock.

She took a deep breath. Not because she had any real trepidation about doing what Cadance so obviously wanted her to do with it. And not even because of the incredible job Cadance was doing on Twilight’s own cock. No … Twilight was just worried that her own efforts would pale in comparison to what Cadance was doing. How could she possibly keep up with that?

Well, she wasn’t going to manage it by just lying here, was she? She had to at least make the attempt.

When Twilight took Nightmare Cadance’s coal-gray cock into her mouth, she did her best to emulate the Princess of Love’s smooth, sensuous technique. And she was, of course, only marginally successful. She’d read plenty on the subject, of course, but her practical experience was woefully inadequate compared to Cadance’s. She knew her tongue work was sloppy, and she wasn’t able to get nearly the entire length of Cadance’s oversized cock inside her mouth. It was a wonder that she managed to get any of it all, given the great thickness of it. But she did her best. That was all anypony could ask for.

Celestia and Luna, meanwhile, were having a wonderful time, if the way they kept moaning into each other’s mouths was any indication. They held each other, Celestia stroking her hoof through Luna’s mane while Luna caressed along the side of Celestia’s neck, and even as they kissed each other with more passion than Twilight had ever seen in either of them, they still kept up their harmonizing rhythm inside Nightmare Cadance perfectly.

“Sister,” Celestia said, “I can feel you – I can feel you moving inside of her!”

“And I as well,” Luna replied with a sweet smile before kissing her again.

Twilight may have felt a tiny pang of jealousy. That short kiss she’d shared with Celestia had been wonderful … but it hadn’t been anything like that.

Luckily for her, she had plenty of distraction available – distraction in the form of a big gray cock that very much needed attention. Nightmare Cadance was already beginning to flare a little, not that it slowed her down at all in sucking Twilight’s cock. But being filled by meaty princess cock in all three holes was obviously doing a number on her. Twilight would have liked to think it was her own blowjob skills that were bringing Nightmare Cadance to a boil so quickly, but she knew the feelings on her own cock were far more sensational than anything she was able to give in return.

Still, though, it was enough. Certainly when combined with the efforts of the other two princesses. Nightmare Cadance’s flaring tip quickly became too much for Twilight’s throat, forcing her to pull off of her and start licking along her shaft instead. She hoped it would be enough.

It was. After mere moments, Cadance’s big gray cock flared to its utmost against Twilight’s chest fluff as she lovingly tongued the base. Despite the way Nightmare Cadance’s body stiffened and trembled, the first splash of heavy warm wetness against her fur was a surprise. The second caught her along the side of her neck, but she managed to get into position and catch the third on her tongue, pressing her mouth against the tip of Cadance’s cock just as the next thick stream of it came.

Twilight swallowed greedily, taking the thick, gooey cum down as fast as Nightmare Cadance could pump it to her. Such a rich and creamy load! It lingered as it slid down her throat, tingling a little as she swallowed it down.

And, incredibly, Cadance didn’t neglect her own blowjob duties even through the throes of her own orgasm. She sucked Twilight just as sensually and perfectly as ever, not faltering even for a moment.

Cadance didn’t even pause when she used her magic to float the freshly inked contract over to herself.

Though it was a struggle to think straight given everything Cadance’s mouth was doing to her cock and everything Cadance’s magic was doing with her pussy, Twilight forced herself to concentrate, helping to hold the document steady as Nightmare Cadance used a little more of her magic to move her still-dribbling cock. The tip of it smeared across one signature line, glowed briefly, then instantly dried into a yellowish stain on the paper.

And as good as Nightmare Cadance’s blowjob skills were, it seemed that the distraction of trying to help her with the contract had set Twilight a little behind in the race toward orgasm.

After all, the moans of the other two princesses had grown so deep and needy sounding as the two of them pushed each other harder and harder into Nightmare Cadance’s body.

“Are... Are you flaring already, Sister?” Celestia asked, breathless and unbelieving.

“You can feel it?” Luna gave her sister a deep, passionate kiss as they moved into Cadance together again. “She grips me so tightly – I cannot help but reach my fullest. And...” Luna’s eyes went a little wider. “And Sister! You as well?”

“Yes... I must admit, I … I enjoy feeling you through her.” Celestia actually blushed a little – Twilight had never seen Celestia blush before! “Shall we … together?”

Luna nodded. “Together.”

It didn’t take long. Only a few more strokes of Cadance’s supremely talented tongue. Twilight remained right where she was, her view dominated by Nightmare Cadance’s now-limp cock, lying in a sticky puddle of the corrupted Love Princess’s cum, with even more of it still inside her belly. She’d never felt so invigorated and soothed at the same time in her life!

Celestia and Luna truly did manage to cum together. Somehow. They were just that in tune with each other, perhaps? Twilight couldn’t help but feel a little envious of that closeness as both of them groaned as one, their voices blending together, as both of them came at once. Even their bodies jerked in almost perfect synchronization. Twilight could only imagine the twin streams of alicorn cum jetting in parallel into Nightmare Cadance’s pussy and ass simultaneously.

Had Nightmare Cadance used any sort of protection spell? Or was Celestia about to become a father … or mother? It was so confusing … and so hot. Twilight felt herself finally beginning to flare inside Cadance’s throat as the two sisters pulled their cocks out, each of them spewing the last little spurts directly onto the parchment, where they again glowed and dried, binding them to the agreement.

Now that Twilight was the only one left, Nightmare Cadance was giving her all of her attention. Of course Twilight’s flare deep inside Cadance’s throat wasn’t slowing her down in the slightest. Twilight wouldn’t have expected anything less from the Princess of Love.

That was hardly the extent of Cadance’s talents, though. Not only did she put even more care into her sensual blowjob, the working of her magic increased as well. Now it not only swirled and tingled deep inside Twilight’s pussy, it teased her winking clit as well. It played across her aching, ready-for-release balls, tickled her nipples, and even brushed around the ring of her asshole, spreading its tingling touch to every last intimate spot Twilight had.

She didn’t last long after that kind of assault. Scarcely a moment later, Twilight had met her match. Her cock spewed forth deep inside Cadance’s throat, throbbing in time with the Love Princess’s swallowing. It just felt so good to finally reach that release, to empty herself inside Cadance, that Twilight completely forgot about the contract.

Luckily, Cadance hadn’t forgotten, though. She happily swallowed down most of Twilight’s coursing torrent of cum, but just as Twilight had reached her limit and began to subside, she quickly pulled herself completely off, taking the last little dribble on her tongue … which she then carefully carried over to Twilight, planting it on her horn with a careful lick.

“Go ahead, Twilight,” Nightmare Cadance said. “It’s your turn.”

At that moment, Twilight was reminded strongly of her old foalsitter … a bizarre way to think about the mare who had just swallowed so much of her cum. But Twilight didn’t let that distract her. She slowly and steadily moved herself close enough to the paper to touch it with her horn, making sure that last precious drop didn’t fall off … at least not until it dripped right down onto the final signature line.

When that drop glowed and dried, the whole parchment glowed with magical light, suddenly splitting into four copies.

“We are now bound to our word,” Cadance proclaimed. “One and all.”

Celestia was just now catching her breath. “So … you will immediately begin lessening the effects of your love spells? Such that the ponies of Equestria can still function through their daily lives?”

Nightmare Cadance put on a coy smile. “Well, maybe not immediately...” She looked over at Shining Armor.

He was absolutely pathetic at the moment, sitting on his haunches with his ardently hard cock bouncing under his belly. He stared them all, his mouth watering from the show he’d just been given.

Nightmare Cadance smiled sweetly at him. “I think there’s someone I had better take care of before I lessen this spell.”

Twilight picked herself up and tried to shake some of the cum off of her fur. “Um... Can I help?”

Cadance smiled down at her as well. “I wouldn't have it any other way.”

Soon – shockingly soon, the two of them had Shining Armor sitting on the throne, taking turns deepthroating his cock.

“Try to swirl your tongue a little,” Cadance said helpfully, holding Twilight’s mane out of the way. “Oh nice, yes! Look up at him just like that. Just look how much he likes it.” She pulled Twilight off of him for a moment. “Here, let me show you how to use your tongue.”

Shining groaned in pleasure as Cadance took him all the way down again, her tongue flicking around the base of his sheath.

And as Twilight watched her work, trying to pick up a little of her technique, she just happened to overhear Celestia and Luna.

“Shall we go, Sister?” Luna asked, managing to make it sound entirely serious.

Celestia was more in a mood to play, though. “My room or yours?”

Luna laughed … just a sweet little giggle. “I was thinking more along the lines of on the train home...”

Celestia sighed and embraced her sister. “Why did we wait so long?”

“Come! Let us not wait any longer! If we hurry, we may still be able to use the gifts Cadance has given us before the spell terminates!”

Author's Note

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