“Oh? Here so late? Did you forget something? Maybe giving me a goodnight kiss?” the Nightmare mocked. She wasn’t expecting to see Celestia storm in on her cell so suddenly with a murderous glare, but she thought she might as well milk it and pry what had her feathers rustled.

Celestia seemed to ignore her words, like she did so often during this month as she stomped forward, the two guards that she ordered to follow her were waiting outside at the cell door with the other two looking worriedly at the situation.

She stopped rather close. Something that was certainly new. After the first time and the kiss, Celestia normally held a respectable distance. This made Nightmare quirk her brow in clear interest.

“How have you foul beast accessed the dream realm?” Celestia finally asked seething, albeit Nightmare simply had a thoughtful look on her face.

“Why would you think that? I have been imprisoned here for a month and my magic is well and truly cut off, thanks to that little trinket you put on my horn.”

“Don’t play dumb with me! You gave me THAT memory as a dream! Manipulating my body to do shameful things that would never cross my mind otherwise!”

The dark mare started to grin, understanding dawning on her as to what memory she might be talking about.

“Oh? Don’t act like you didn’t love it. Maybe that is why you remembered just now? Maybe that is what your body is craving? My, my. It seems I underestimated you. You aren’t quite as much as a prude as I expected you to be.”

The dark mare then sniffed the air, sighing out deliciously as she seemed to pick up on something.

“You really have graduated from being a prude. I can smell your delectable juices. How about you let me down and I show you a tongue more skilled than Luna’s,” she said, her elegant tongue flicking out of her mouth teasingly.

The white alicorn princess flinched, stepping back at that for a moment, the crassness taking her by surprise. But she shook it off quickly, trying to not give the dark mare any ground.

“This is no joke Nightmare! Tell me how you did it, or else…” Celestia hissed out in seething anger, her teeth clenched in a rather unladylike snarl.

“Or else? Don’t tell me you want to punish your little sister’s body, just because you turned horny. Seems like I was right. You really are a terrible sister.”

This seemed to prove too much for her as Celestia started to snap. Her whole body tensed and she simply couldn’t hold back her rage any more. She wouldn’t bow down to this slut! Not be at the mercy of her whims.

Just as she thought that, she could feel some of her own translucent cum running down her white-furred legs, as if to mock her.

This won’t do. She cannot let this stand. She was the one in control and no one else!

‘And Nightmare would do well to remember this…’ she thought out the last part as her head turned to the cell door.

“GUARDS!” she called for them, and two of the startled ponies stumbled in. A grey one with white mane as well as a white one with blue mane, both wearing their golden armor.

The pristine mare hesitated for a moment. Hesitated on what she was about to do, only to have another streak of her marecum run down her other leg, tainting it and reminding her all too well that Nightmare was asking for this. It was her fault. It was her body now. Not her sweet innocent sister’s. There was no need to hold back with the body of a total slut. She deserved this.

She breathed in and out once, her voice steeling itself in the process as she glared at the mare that hung with her forehooves above her head on the wall and with her teats and marehood on full display.

“Have a go at it.”

Both guards seemed confused by her command, looking at her questionably.

“Princess?” the white one asked,as the Nightmare blinked in surprise.

“You can’t be serious,” she told her, not believing what she just heard.

“It is just as I said. Go ahead. If she wants to act like a prostitute, you can use her like one.”

The white one was uncertain, clearly newer and more inexperienced as he looked over to his grey colleague. But even he seemed to be surprised by it. Though all the same the grey one’s eyes flitted over the dark mare’s body. Her undeniably sexy curves, her full set of teats, as well as the dark marehood, presented to them and practically begging for him to take the Princess up on that offer. Even more so with the light glinting that showed some light sheen of arousal on it.

“Yes...Princess.”

The white guard that was by that point staring too quickly snapped his head back to the grey one clearly surprised, but he didn’t dare to speak up. To defy the orders of the Princess. He could see how violently her mane whipped about, showing quite well that she wasn’t about to accept any negative answer. And that didn’t even account for the heating glare. And it truly was heating as they seemed to turn slightly into a fiery amber.

So he straightened himself out, head forward as the grey stallion walked up to the Nightmare.

The situation was crazy, but tempting as well. The body of a Goddess lay before him. The view alone enough for his black cock to slip out of its sheath in mere moments. The hardening prick swung under his barrel from the light momentum while his full balls did so in a less violent manner.

It was only a few steps, yet it was tense all the same.

Nightmare’s eyes flicked from the grey guard to Celestia, still surprised.

“...You are serious.”

While her glare was dangerous the hissed words that followed seemed rather calm in direct comparison. Still, the calmness didn’t belie the clear threat in them.

“Of course I am. I have had it with you, Nightmare. A whole month of your mockery and still it isn’t enough. A thousand years of you separating me from my sister and it still isn’t enough. And now you are invading my dreams, but it still isn’t enough. You are a spoiled brat heckling for more and more leverage to satisfy your sickening greed for attention and influence. So I will give you the attention. In a way a hussy like you deserves.”

Nightmare was about to retort but Celestia’s horn glowed with its yellow intensity, making an equally yellow aura snap around the darker mare’s muzzle, binding it shut with a magical construct.

“Mmmmmm!” Nightmare protested muffledly, shaking her head as if trying to get rid of the magic wrapped around her muzzle. Little good it did as it didn’t move an inch.

The grey guard had halted by that point, standing in front of her, but the interaction stopping him from going further. Even more so with the mare struggling now against the wall.

While her legs were chained as well, they were so in a manner that didn’t open them. There were just some shackles with short chains to the wall. The punishment hardly could proceed like this. Celestia knew that. Unfortunately she didn’t have the necessary equipment so she had to improvise this part, just like the way she had silenced her.

With an annoyed huff, her horn glowed again, freeing Nightmare from her hind hoof shackles and quickly replacing them with ones of her own magic that had a small round beam, a bar, spreading her legs. The shackles connected to the wall, holding them forcefully in place.

With her thighs now parted, the guard had unhindered access to the hussy’s flower. Though his gaze was fixated on her round bountiful teats at first, weighing his options.

Deciding that he had waited long enough he got closer with his head before his mouth encompassed her dark nipple, his tongue swiping over the flesh teasingly. Then the guard brought his teeth into play, pinching her nipple with it and making Nightmare mutely gasp. Or whatever the equivalent was to trying to gasp while having one’s muzzle closed.

He then went for the other teat, nibbling on it as well and leaving a thin sheen of his drool on it, while his hoof fondled the free one, enjoying the soft texture.

Celestia simply watched, letting the guard do whatever he pleased to do. It was right in her mind. So when he finally pulled his mouth off Nightmare and stood up on his hindlegs, she didn’t even twitch.

His dark grey frontlegs went on the wall, keeping him up as he aimed with his tip at the much larger mare. Seeing the difference in height would cause problems Celestia flared her magic, giving more chains to the shackles of her forelegs as well as adjusting the ones on her hind hooves to be closer to the ground.

The guard nodded vaguely in the princess’s direction in thanks before pressing his flat tip against the wet flesh of Nightmare’s marehood, who seemed to tense at the contact.

Then he pressed.

It slipped in easier than the guard expected, almost making him stumble as he groaned from the snug and wet embrace of her marehood.

Nightmare herself gave a muffled noise that sounded like a moan and made Celestia’s visage twist in disgust.

“You really do deserve this,” she said with her glare still locked on her.

The guard tensing at hearing the sun princess decided to distract himself with Nightmare’s hole. After all, he had an order to fulfill from her.

So he started to move, shoving his cock further in. Seeing as she was an Alicorn, it wasn’t too hard for him to sink it into her completely. The medial ring hereby scrapped nicely along the dark mares walls, making her shudder lightly.

Her pussy certainly seemed to react as it got hotter for the guard, in the best of ways. He pulled out and then pushed in with a grunt, before repeating the process.

The wetness was increasing with each thrust and Nightmare started to have her own arousal run down her legs. Something that made Celestia smirk as she got an odd satisfaction from it. Maybe a revenge for the wet dream that was causing her distress earlier. This certainly seemed like justice in its truest form. After all, she got what she sowed.

Her muffled moans and groans only amplified that feeling further as Celestia watched on as the guard humped the black Alicorn’s flower like it was some public use hole.

His white counterpart watched on in shock as his colleague practically ravished one of the most powerful mares in Equestria like a cheap whore. His cheeks were flushed and he felt his cock already erect under his barrel, demanding a turn at the wicked mare as well.

While Celestia winced slightly at seeing his eagerness, she tried not to show it too much. They were just fulfilling her orders after all. Still, it was strange to her now that she had let her eyes wander, making her shake her head and shake off that thought. No need for her to be the prude Nightmare sees in her. This needed to be done.

It was then that she noticed that the grey guard accelerated his thrusts, his hips slapping into Nightmare as his heavy black balls swung beneath him. The guard’s breathing got more labored, the royal hole proving rather satisfactory while he could still hear the muffled moans of the villainess.

“You can finish inside. No need to pull out with this hussy,” Celestia said, the words leaving her lips before she could probably think on it.

“Y-Yes princess!” the guard answered dutifully, not needing to be asked twice as he felt himself drawing close. His flat tip hammered into her dark puffy lips with high speed, the mare quivering in her position as her mind was lighting up with fireworks of pleasure.

But before she could reach her peak she heard the stallion groan and hilt, his frantic movements ceasing as something hot and viscous entered her.

The mare’s eyes turned to pinpricks at the feeling. The feeling of white seed getting shot deep inside of her. Her breathing hitched in that moment, her body tensing slightly at this invasion while the guard decided to hump into her a few more times, smearing his cum into her.

Then after he had emptied his balls completely his hind hooves clacked on the floor as his flaccid going member was pulled out, his wide head straining on her pussy for a moment like a cork. After a noisy pop followed a thick string of white goo that was joining the puddle of sexual juices that had gathered on the floor.

The grey guard panted and stepped back enough that his front legs touched back on the ground before turning around with a satisfied grin.

The white guard looked at him with envy, but only for a moment before his eyes flitted to the clearly defenseless dark mare.

He gulped nervously, but still all too hastily trotted past his colleague and up to Nightmare. His gait practically showed his excitement. His need to fornicate with her. To fuck her.

He didn’t need an order to plug her flower with his shaft. It was par for the course in this moment. Something he wouldn’t want to miss.

“A real princess…” he whispered, as if just now realizing what he was doing as he righted himself with his forelegs on the wall. But that was all he could say before his body spurred him on to thrust upwards as his hips moved into position.

A moment later his tip slid along her walls and past them, missing his point.

Nightmare Moon growled in protest, weakly moving against her bindings as if trying to escape further humiliation and punishment, but of course wasn’t about to succeed seeing as her sister’s magical might was pushed into those.

The grey guard chuckled at his miss, making the white guard scowl lightly, though he instantly pulled back to try again.

This time his aim held true. While his cock almost slid past again, it was just angled good enough that it did slide into her.

The guard gasped at the slimy and hot entrance as his rock-hard dick was shoved into it. He certainly felt the mess, but it only helped to easily lodge himself into her completely on his first thrust. He could practically feel the pink walls clamping down on him on instinct, massaging him, coaxing him to move.

His muscles tensed when he moved, his hips creating a constant hammering into her, making her teats jiggle around as he set his pace and thanking Celestia for the opportunity to do this.

The mare in question didn’t really know about his silent prayer, but she didn’t need to. His enjoyment was clear as day. He was much more noisy and twitchy, compared to his grey counterpart, gasping, groaning and moaning as his body wildly shuddered during the movement.

Of course his body was not the only one shuddering as the constant scraping of his rod along her sensitive walls tingled her brain with the pleasant feelings of their mating. She could little more than take the ride and suppress any pleasants sounds that might leak from her bound muzzle.

Wet smacks could be clearly heard by now, strings of mare and stallion cum connecting both at their crotch region, though he didn’t mind. All he could think of was the warm embrace of the princess’s flower as he ravished it to his heart's desire. Any mess would be well worth all this. Then again, there was a nasty beauty to this as well.

It was then that she came, a muffled cry escaping her closed lips as her back arched against the wall. Her marehood quivered, her muscles clamping down on his cock, making the stallion grunt before he felt her sticky juices bathing him in their warmth. He felt it clearly, tickling across his cock and balls and running down his legs. It felt incredible.

Still, he pushed past her tensing walls, wanting to keep at it. Wanting to feel it deeper. To feel more of her as the mare continued to moan through her climax.

His hips pushed into her, smacking into her further, continuing to stir up her insides as the guard was milking the situation for all it was worth.

Nightmare’s pussy was winking erratically, her sounds of muffled enjoyment couldn’t be hold back by this point as the loud sounds echoed around the dungeon.

The grey guard by that point had gotten hard again as he saw this, clearly having gotten aroused from the show yet again.

The Princess grimaced slightly, not feeling quite as confident anymore in this saucy scene. Still, she needed to stay, and if just so she could not lose face to Nightmare. Of course her by now equally winking pussy didn’t help it, as her mind recalled the dream, a small part in her trying to suggest that this was Luna that was getting railed right in front of her eyes. And no matter how much she tried to squash that thought, it still stayed.

She was so distracted, she almost missed the loud groan from the guard as he hilted, pumping another gallon of hot seed into the Nightmare, who writhed yet again, but wasn’t cumming in that moment. Though the floor was messy enough as is and Celestia could only imagine the headache this might cause to the cleaning personnel.

The white stallion didn’t pull out, simply letting his cock rest into the mare. It was still erect, even after cumming, showing clearly how pent up or aroused he truly was.

Still, it put the Princess in an uncomfortable situation. She wasn’t about to tell him to pull his cock out of her sister’s body. Something like that shouldn’t leave her lips. She was the Princess after all. The epitome of perfection. A well-crafted picture to uphold peace and prosperity.

A response needed to be made still, so she decided to be vague.

“The punishment was handed out, so I will take my leave. You two will continue to guard her.”

It was all she said before turning around and leaving, her tail tucked between her legs, catching the little drops that were escaping her inflamed lips.

Nightmare glared at her weakly, her furry cheeks red with a heavy blush as she hang there helplessly.

As soon as Princess Celestia was gone, the white stallion looked over to the other.

“D-Do you think I can go another round?”

It was a simple statement, but one that made the grey stud aware of his own still hard cock. His eyes travelled between Nightmare’s legs and the mess.

‘Well...it is not like anyone would notice a bit more cum at this point.’

The guard then grinned.

“Alright. But you best finish up quickly. I want to have a go at that untouched ponut next.”

Nightmare was too weak to protest as the stallions neared her. Only a minute later, loud moans sounded from the cell once more.

Author's Note

I forgot to publish this yesterday. So I did it today. Two more chapters will follow this week still.