Equestria Changed

“Why are you making this so hard on yourself?” Celestia asked. A question that one could almost mistake for concern, while it was anything but that.

It was more disappointment that her plans weren’t working out quite as well as she had hoped. And now she had to deal with her failing plans, trying to find a better way to make her docile, so that Nightmare can be forced to parade around as Luna.

It was clear. So crystal clear. While she just has awoken from the brainwashing that was inflicted to her, Nightmare was sharp enough to pierce through her memories and get a detailed picture of the situation. The sharpest detail being: Luna was introduced to Equestria and expected to be seen with Celestia. There was no fight, there was no war. No excuse like she got possessed and had to be banished would be easily believable. Even less with how weak she was acting around others. And that didn’t even account for the fact that Celestia didn’t want to get rid of her, as she was in her sister’s body. So there was a high chance that the only viable option was for Celestia to try and pull that stunt again. A stunt she couldn’t pull again, if she didn’t find a stronger potion for it.

In other words, she had time.

It made the dark alicorn smirk, despite her situation of being back in this dingy cell. Nightmare had time and Celestia would be troubled for as long as she wasn’t her mind-controlled puppet. A funny thought, so she looked at the cursed sun alicorn with amusement.

“I would say I got used to these accommodations. Besides, the only bed I would consider sleeping in is yours, after you fall before me.”

Celestia sighed, pinching her brow. “I shouldn’t have expected anything less. And here I was thinking of trying to be diplomatic. To offer you, to be put back into your prior state and live a happy life as a princess, though I assume you do indeed have no interest in this?”

The dark mare snorted, “As a mare of the night I come in contact with minds. They are fickle little things. Messing with them to such a degree is monstrous, even by my own standards. So agreeing to practically make me a drooling vegetable that spouts nonsense like ‘I love you, sister!’ is quite the sickening thought.”

She kept the ‘I’d prefer execution’ out of her rant, even as it was on the edge of her tongue. But that was mainly that it would mean the death of Luna, as she was in said mare’s body.

“...I see,” she nodded as if affirming it again and her next course of action. “Then I will have to find a different solution for this. And to punish you for harming the guards. This is a righteous state, so I cannot allow such behavior.”

After that she turned to leave, making Nightmare snarl.

“Oh yeah?! Who do you think is breaking the bucking law in the first place with your mind tricks?!”

The moon princess was ignored, as the cell door closed, only the slight hoof clopping could be heard as Nightmare trashed against her bindings.

“It isn’t my fault! How should I have known that the potion was too weak to keep an alicorn contained?!” Chrysalis argued as Celestia had called her to her chambers, a heavy scowl on the solar princess’s muzzle as they sat opposite from each other on the couches.

“While it was an experimental treatment, it is your responsibility to monitor Nightmare and the continued effectiveness of your work. That it didn’t hold is severely disappointing and makes me question your competence.”

The changeling queen bit her tongue, lest she said something she would regret. It was all a bit turmoil. She had almost immediately heard about the situation, what with her changelings being a key factor for the Nightmare’s capture, though it didn’t give her any time to think of a way to deal with the clearly annoyed alicorn princess.

She really wished Shining was still here. Having him by her side to back her up, while probably pointless, at least would have encouraged her. Not to say that she was planning to cower here now, but she cannot jeopardize her people for the momentary satisfaction of ‘slapping a hoe’, no matter how deserved it may be.

“I did monitor her! She was captured immediately by my very own! So, do not imply that she could have run off and ruined it all. I am convinced the procedure would have worked...normally. We probably only underestimated the strong will of an alicorn like her. So, while it definitely works on normal ponies, an alicorn needs something with more potency. I will send my best changelings for this job and see to its completion.”

“I am sure you will,” Celestia said, tapping her hoof to the ground. “But this alone will take too long. So I will supplement my very own scientists to progress this project on their own, separately from you and your changelings. The changeling approach failed and is not enough to fulfil this role. It is a simple safety measure.”

It was a clear insult. A clear disrespect and distrust to her changelings’ capabilities. Sure, they were still leading their own project, but now they were forced to compete with pony scientist that were essentially mingling in their business. Chrysalis didn’t like that as she gritted her teeth, glaring at her.

“We are capable and can do it on our own. There is no need for an outside group to start research of their own.”

After the alicorn sipped on her tea, she smacked the cup noisily on the table, giving a glare of her own that allowed no room for argument.

“I am not discussing this. I am merely informing you. You failed once, so you obviously need the pressure of a competing pony party to do the job right this time. And if you fail again, I have simply another option to turn to. Anything else I won’t accept.”

“...Fine then. And who are these ponies you have in mind?” she said, backing down and slightly lowering her head to avoid eye contact, but was still very much irritated.

Celestia at least let up, stopping her deep scowl to sip again.

“Frankly, this is none of your business. Just know that they are more than adequate for this purpose.”

“Really now?”

“Really,” Celestia verbally pushed back with emphasis. “It should be motivation for you. After what happened, I would have any right to reveal every single one of your changeling. But I won’t, for now. If you however fail again...let’s just say, you shouldn’t. Is that clear?”

“Crystal,” Chrysalis growled, trying her best to real her anger in at the clear threat.

Celestia smiled, sipping on her cup. “Good. You are dismissed.”

The changeling queen stood up, if hesitantly, not really comfortable to just break the conversation off like this. There was much room for argument, but she knew Celestia would give her none. It was frustrating and yet she listened and pulled back, for the sake of her race.

She allowed herself to harrumph in a simple act of defiance as she walked out head held high, leaving the sun princess to her devices.

On the very early morning, Nightmare was let out of her cell and led through the many passageways and to the back of the palace. It was probably to keep her as much out of the public eye as possible for what was to come.

Punishment.

Celestia had announced it and now she would pull it through. The dark mare already imagined that it could be something sexual. The stocks at Nightmare Night gave her a good enough guess as to how it would turn out.

At least they had the sense to get the much too tight regalia off of her. After the brainwashing broke, she did after all return to her normal form, meaning that she was thicker and taller than the regalia was adjusted for. It was only a slight comfort in her current situation.

Soon she reached her destination. It was an old unused training courtyard that had yet to find a new purpose. The grassy plain was shut off on the left and right by the palace, providing a visual cover for whatever was planned.

And there was something terrible planned.

The sun alicorn stood there, but she wasn’t alone.

A large red dragon, about as high as a first floor building stood there, seemingly conversing. Not nearly as big as a fully grown one, but a young adult at least, so still very much intimidating to normal ponies at least.

His golden slitted eyes, zoomed in on her, making Nightmare shudder despite herself, at the clear leering gaze of the greedy reptile.

Celestia turned around, scowling.

“Good. You are here,” she said, as the guards lead her forward, the back of the spears shoving her behind to get her moving.

Nightmare put up a strong front, pressing her chest out as she walked forward, her sharp teeth sneering at the white mare.

“Yes. I wouldn’t miss any of my appointments with you,” she mocked.

A smile was given as way of answer as Celestia waved a wing to her left.

“That is nice to hear. Now then, I don’t plan on spending too much time here, so this is the dragon that will take care of your punishment for me. So he will take care of you, while I am away.”

A humorous snort escaped the creature as it bared its sharp fangs. Fangs that were putting her own to shame.

“...Just where are you going with this?”

“You haven’t figured it out yet? Very well then. Dragon, give her a visual demonstration.”

The dragon did so, going from its four-legged standing position into a sitting position with a smirk. Why he smirked was quite obvious. Even more so than that it was a ‘he’.

The proof for the latter stood tall and proud in front of her eyes. A large draconic shaft.

It was about four of her forelegs thick, not even counting the knot that went wider than that. The tip was pointed and it had ridges along its base and upper side. It was a shape far different from that of an equine.

Shape was of course not the issue, but the size.

“Y-You cannot be serious,” Nightmare sputtered, her cheeks tinted red as her eyes trailed along the thick veins traveling along it.

“I am. It was a grave crime, so a grave punishment is in order.”

“You have gone mad,” she said dumbfounded, before snarling. “Is that really how far you are gone? This is what you do with your enemies? This is a shame that will forever haunt you!”

Celestia snorted, glaring back, “Judgement, from you? I don’t think that will be quite effective. Nor would anypony take your side over this. I gave you a choice. A generous offer. A way out. You decided to slap my hoof away and now you are dealing with the consequences. Because you still don’t realize that you have lost.”

Another shout was expected, but what came surprised the sun princess. Nightmare’s lip curled up in a mocking smile, before laughter bubbled up inside of her. As it broke out, it filled the entirety of the yard.

Celestia stared at her uncomprehending as if she was the one that had lost her mind, while the dark mare fought back her chuckles before calming back down to an unpleasant smile.

“Lost? Foolish mare. It is already too late. My plan is already set in motion, so you are the one that will lose.”

The smugness was dripping from every word and making Celestia’s stomach churn.

She stepped forward sternly. “What do you mean by that, Nightmare? What plan?”

“Oh wouldn’t you want to know. But I am not telling,” then she dropped her pleasant smile, baring her fangs and making the sun princess take a step back. “I swear!” her voice boomed, “I swear that I will take you down! That I will dethrone you! It is I who shall rule this world!”

‘For Luna,’ she added in her mind, staring defiantly at the wretched sun princess who was surprised for only a moment before mirroring her. Only that Celestia’s horn also started glowing.

“You won’t!”

Only a moment later, a gag went into Nightmare’s mouth, clasping shut tightly, while the mare tried to snarl and shook her head. She was about to charge but was quickly held in place by the alicorn’s magic as she secured her hooves with two spreading bars, one for front and one for back hooves, before chaining them into the ground.

Once done, Celestia nodded in satisfaction.

“Now, if you excuse me, I need to get to my student and assign her a new task. I am sure you will be quite busy with your own.”

She then turned and left. Celestia left her, slowly trotting out of the large courtyard, not even staying to oversee the carnage she was wrecking on her. After all, the insertion was big and the stretching surely wouldn’t be comfortable.

And yet, Celestia didn’t care. Not a single shred of care for this body, her sister’s body as she simply trusted that their alicorn healing factor and natural stretchiness would deal with any damage or gaping this punishment surely would result in.

She could only muffledly curse after her, even as the chuckling dragon got back on four legs and walked over to her.

“A wild one, is it? This is quite the fortunate turn of events for me. You best hold still and make it easier for yourself. We don’t want you to get hurt too much, do we?” the dragon rumbled, his strong voice and presence enough for the guards to quickly back off to the sides and give the creature plenty of room.

He was stepping over her in an instant, his shadow casting down on her. Seconds later she felt something poking against her flanks. Something hot, something pulsing, something wide. There was no need to ask what it was.

It swayed along her rear as she tried to move, but couldn’t and then she felt the pointed tip mashing against her marehood, slightly dipping in, about to enter. She couldn’t help but shudder.

She was about to quickly adjust her plot to stop the line up, though was too late as the dragon was already pushing forward.

The hot feeling spread along her marehood as it was slowly and agonizingly parted. The sharp tip helped with that as it was stretching her slowly, starting small before the inevitable spreading of her walls came to pass.

Nightmare grunted as the tip slipped in, followed by inch after inch of his draconic shaft. A shaft that was as long as her body. She could feel the ripples along it scratching teasingly along her walls, even with how her pussy felt like it was burning from the way too large insertion.

“Quite tight!” the dragon groaned, seeming pleased with the hole that the sun princess offered him. “Let’s see if we can’t do something about it~”

The dark mare lurched forward, almost falling if it wasn’t for her hooves being bound in place. He was deep. Really deep. Already he had forced his way into her womb and was now stretching her entire pussy in both directions as she felt the large knot hitting her cunt.

Her mouth hung open by that point, her eyes wide. Not a word came out, no gasp with how shocked she was at the situation.

Then the dragon moved.

The only thing holding her in place were the chains to her hooves as her whole body had trouble to stay still. It was a strong pull that came as the dragon’s cock slowly retreated. Her ass practically was pulled backwards as much as the bindings allowed it.

And then he pushed back forward, moving her body in the opposite reaction.

It was something seemingly incomprehensible. Feeling this beast move her body around from his mere slow thrusts. This action only showed the force that this dragon wielded. The force of a mating that was not meant for normal ponies.

But Nightmare was an alicorn. And as an alicorn she could take it.

This was Celestia’s bet that she could take it and that the massive strain on her hole would be sufficient punishment to deter her from any future flight attempts.

In the moment it at least worked. There were no thoughts of fleeing on her mind or revolution. She was just too distracted by the massive cock, rocking her entire body, nay, one could say her entire world!

And despite the feeling of being spread to the limit, with the discomfort and pain it brought, she could feel the cock raking teasingly along her sensitive walls, causing some manner of pleasure to spark in her brain.

It was only slow at first, but it was a steady increase. An increase that came with the slight increase of the dragon’s motions.

Muffled moans were hard to hold back as her body, despite the incredible size difference, reminded her that she was still just a mare. A mare with needs. A mare whose body had acclimated to quite a lot of carnal activities.

Still, in her position she wondered if Celestia had somehow drugged her for her to feel this way. It was a fleeting thought, though even if that was the case there was little she could do.

So she let herself get swapped away. Let the dragon violate her helpless body and ruin her pussy like no other stallion managed to do until now.

Shame bloomed in her as she was forced towards a climax, making her give some weak struggles. Struggles that the dragon didn’t even seem to notice as he simply kept at a steady pace by now.

A pace that he soon sped up once more. Arousal was running down the mare’s legs. After the climax there was a puddle beneath her and she was sure it would grow further if things continued. Her inner walls felt sensitive. Sensitive enough to not hold out for long as she felt the ripples rubbing along her insides.

Her head was low, her moans easily breaking through the gag as the dragon let out a guttural chuckle that seemed to vibrate in her bones.

His hips pushed into her, farther and farther, making the large bulge beneath her show as he forced a few more inches in. Then he gyrated into her teasingly, short bursts of movement to stretch her womb and pussy with.

Nightmare’s legs shook, before crying out and cumming again. The dragon took that as his cue to go back to his regular fast-paced thrusts.

His hot precum was freely spilled into her hole. And it was hot. Not hot enough to hurt and neither was his cock, but a noticeable difference from ponies, showing that a mare like her had no business having such a thing inserted into her.

The drake of course was happy, even if she was smaller and her temperature was lower as he was not about to let such an attractive offer of the sun princess go to waste. Attractive even more now that he was inside her and could feel her pony walls contracting around his dick.

“Mmmm, such a nice little pony,” he purred as he felt himself crossing the edge, his cum ready to explode into Nightmare.

A fitting term, considering the massive burst of spunk that made her womb bulge out noticeably. She cried out at the sudden expansion as the hot cum was defiling her insides. There was little for her to do as scream as the big dragon hilted into her, groaning and enjoying his climax.

As he pulled back for a bit, her loose cunt was shooting his spunk out of her snatch. It couldn’t hold it all in after he pulled back just a bit and the resulting space giving enough room for it to wetly hit the ground and form a sizable puddle beneath her.

The flow soon slowed to a halt. For a moment the alicorn thought it was over, only for the massive shaft to start moving inside her again.

Another involuntary moan was wrest from her lips as she could only helplessly stare forward and hope he would tugger out soon. Though she knew this wouldn’t happen that easily with a dragon.

A long day passed like this as Nightmare slowly slipped out of consciousness, plans of wrath on her mind right before it all went black.

End of Arc 1: Imprisonment of a Nightmare