Celestia's Relaxing Vacation

Twilight tried her best to impress Celestia, knowing that not only her life but the continued existence of her very soul depended on it. That meant taking initiative when she could, and to that end Twilight often tried to be in the middle of doing something kinky when Celestia arrived for their nightly play times, which Celestia seemed to appreciate. Given what resources Twilight had at her disposal, something kinky usually meant something involving a corpse or two.

Aside from the occasional treat, Twilight was usually in normal non-futa mare form, which meant that Big Macintosh, Soarin, and sometimes Adanac, got a good deal of attention as the only corpses so far with cocks. Celestia's little trick with Big Mac, where she tied off his cock before he died, had actually done well, and given his cadaver a permanently stiff boner every bit as large as it had been in life.

Tonight Twilight dragged Big Mac's corpse from the pile by one foreleg, grunting as she tugged his heavy form out onto the open floor, then pushed him over onto his back. It took a bit of time to recover his head as well; she finally found it where it had rolled behind a stalagmite and dragged it over to the rest of his body by his mane.

"Mmm, time to shine that stiffy with my juicy cunt," Twilight had gotten in the habit of talking aloud to them even when no one was about, Celestia loved dirty talk so it didn't hurt to practice, or to be ready if Celestia happened to be listening.

She pulled herself up onto Big Mac, spreading her legs to grasp him about his hips, and slid her pussy up and down against the dry surface of his shaft, looking down to watch the warm goo from her slit glisten against the front of it. She rolled her hips, moving her pussy to his tip, then reached a fore hoof down to help aim him. Another twist of her hips, and her slimy pussy slipped over his tip and sank slowly down his length.

"Oh Big Mac," groaned Twilight, "So big... so stiff... so... dead. Mmm fuck me like the cock trap I am."

She picked up Big Mac's head with her front hooves, bringing his face up to hers.

As she continued to ride his eternally stiff fuck stick, she looked into his empty eyes and savored his last expression of pain, or at least tried to. She was becoming better at it. Leaning forward, she kissed him deeply, tilting her head back and forth as she made out with the severed head.

There was a noise towards the entrance of the cave, and Twilight turned her head about slightly, hoping that it was Celestia to catch her like this. Unfortunately, it was just her guard. who had brought her meal a bit late today. He paused as he caught her in such an act, but then just chuckled and went to pour her food into her feeding bowl.

"Not hungry?" he asked.

"Leave it there and come fuck me up the ass," Twilight answered simply.

"Don't have to ask me twice..." he mumbled as he dropped the tray and trotted over to where she was molesting the stallion corpse.

Even after Celestia told him that he had to ask her permission, he was getting his cock inside Twilight plenty. Twilight worried that she was becoming a complete slut, but she had to act like Celestia desired. Maybe if she kept doing well, Celestia might even give her books to read. So far Celestia's only answer to that request was 'Maybe if you're good.' Well she was determined to be good.

Twilight brought her hips to a stop and flagged her tail out of his way, allowing him to mount up behind her and slide his warm, pliable shaft into her behind, a contrast to Mac's cock, which still felt cold even after being warmed by her pussy. Once she felt the guard grasp her about the flanks, she began to rotate her hips once again, the room now full of the moist sounds of penetration, her plot pushing back to impale itself on the one cock then pushing downward to push the cool cock up into her cunt.

She kissed Big Mac again deeply, moaning at the feel of being double penetrated. She pulled the head away, then held it up higher, offering it to her other guard, who she still didn't even know the name of. He took the offer, leaning forward to kiss the dead stallion on the lips, slipping his tongue into Mac's muzzle and depositing more saliva where Twilight had already slickened things up.

There was another sound of hooves from the front door, and Twilight turned her head again, smiling as she definitely expected to see Celestia this time. What she saw made her stop her hips where they were, and drop Big Mac's head onto the floor where it rolled several feet away.

It was Luna. She was staring into the room with wide eyes and her muzzle hanging wide open as if she was still trying to comprehend what she was seeing. The guard, who didn't seem to have noticed her, was still plowing into Twilight's behind even as she sat on Big Mac's remains, right next to a large pile of other corpses.

The guard had no time to notice before a jolt of energy slammed into his side, knocking him off of Twilight and slamming him into the corpse pile like a bowling ball into pins. He momentarily screamed as the beam from Luna's horn send ripples of pain through him, then slumped over, passed out. He pissed and shit himself from either pain or fear, fluid and a large slimy chunk of scat bouncing down the side of the corpse pile, amusingly landing in Rarity's open muzzle. It was likely the only reason she didn't kill him was so she could question him, because from her dark expression she didn't seem to be in a merciful mood.

"No No No!" Twilight screamed in terror, certain that she was next, "Don't kill me! I'm sorry! Oh gods don't kill me!" She knew that even if Luna was the one that killed her, Celestia would probably find a way to eat her soul. "I'm sorry! I'm sorry!"

As she pleaded, she flopped off of Big Mac's body, his cock bouncing as she pulled off of it and left it glimmering with her juices. She skittered across the floor, tears of fear rolling down her face as she scrambled to hide behind the corpse pile. Luna's expression turned from rage to confusion as the pony she thought she was rescuing begged for her life and then curled up sobbing behind the cadaver pile.

"Twilight Sparkle..." Luna breathed, "Inside the crystal caves all this time, no wonder I couldn't connect with your dreams; I should have thought of this before! Oh Twilight, what have they done to you?"

Luna very slowly approached, disgust and horror etched into her features as she moved stiffly to step over Big Mac's well-fucked corpse and to slowly move around the pile towards Twilight. She reached out for Twilight, who spasmed at the mere touch. Twilight held up her forelegs, covering her head, and curled up to protect her swollen belly as if she expected to be beaten severely or worse.

"No don't!" Twilight continued to beg, oblivious to Luna's attempted rescue, "Please don't! I'm pregnant! Don't hurt me! I'll be a good filly! I didn't mean to fuck my friends' corpses it just happened!"

Luna didn't reply, simply laying down on her belly and pulling Twilight into a hug. She unhitched her leash and then held her head, rocking her softly, and allowed her to sob until she was out of tears. Luna's own eyes were massive at this point, stunned at how Twilight was acting, not to mention what she was saying. Still she petted a hoof over Twilight's head, trying to calm her.

"Twilight please calm down," said Luna, "We... I am not here to harm you, I am in fact here to save you."

"Save me?" For the moment, Twilight didn't appear to understand the concept.

"Yes, save you," said Luna, "Now tell me, did this traitorous royal guard do this to you? To your friends? Who is he working for?"

Twilight's mind raced as she slowly began to comprehend her situation. Luna was going to start asking questions and would want to know how all this happened. She wouldn't believe that the guard did all this; he could have never gotten away with it himself. But if she told on Celestia, what terrible fate might await her? What terrible fate awaited Luna?

"Luna..." whispered Twilight, "Listen to me. You have to forget what you've seen and run away. I'll be fine."

"... what?" Luna tilted her head, "I do not understand."

"Please just go away," said Twilight more loudly, "Run as fast as you can! You don't want to know, please, for your own good just go away."

"I will do nothing of the sort," said Luna, "Come, you need medical attention, and we must speak to our sister. She needs to know about this."

"No!" Twilight began to shiver violently, "Not her! Don't tell her! I'll be good!" She seemed to be slipping in and out of sanity.

"Come," was the only reply she gave Twilight. Her horn glowed, and Twilight's horn lock fell to the floor with a metal clank. She picked Twilight up off the floor, carefully draping the mind-broken alicorn across her own back. Dragging the unconscious guard behind her, she moved to the exit.

Celestia was in her throne room, having been held to finish up one more detail before ending her 'shift'. She was just about to head out when there was a sharp bang in front of the throne, the form of Luna, Twilight, and the unconscious guard fading into sight. Celestia turned to face them, her eyes shifting back and forth from Luna's face to Twilight's. It was even more awkward in that they were in the middle of a guard change, so both Celestia's and Luna's royal guard were in the throne room at once.

Celestia stiffened her stance just slightly, unsure of what Twilight had told her, or which of them Twilight would help. If Twilight did help Luna, Celestia might lose; she was the tipping point in any fight here. Celestia had never admitted it, but she had become feeble in her old age, at least more so than before, while Luna had been in stasis on the Moon for a thousand years, leaving her effectively a millennia younger and much more vital. The only reason she now had as much power as Luna was the souls she had eaten. She had wanted to absorb Pinkie before challenging Luna, to tip the scales more in her own favor, but it did not seem that would be possible.

Had Celestia's mind-fucking of Twilight done what she hoped it did? She seriously considered activating the spell that would switch her with Chrysalis, but no, she wouldn't resort to ending her fun quite yet. Maybe she could salvage this. She looked right into Twilight’s eyes, and Twilight quickly nodded, but Celestia couldn’t tell if the nod was truthful, or if it even meant that Twilight would help her. Her own stress and Luna’s presence made it harder for her to get a clear view of Twilight’s feelings.

"Sister!" Luna called out, "We have found Twilight Sparkle! She was under our noses this entire time. I followed a suspicious guard to a hidden cavern entrance that led to a chamber where she was being held and... sister?"

It was impossible not to notice that Celestia's expression was not one Luna would expect. She took a deep breath, composing herself, and slowly walked over to her sister, standing a few feet away.

"A cavern, you say," said Celestia. Then Twilight hadn’t told her it was Celestia. That significantly increased the chance of Twilight helping her. Perhaps it was a gamble Celestia should make after all.

"Indeed," said Luna, "We also... we are sorry, but we also found the bodies of the other missing ponies. They are all dead. Brutally murdered."

"Twilight?" Celestia asked softly, showing no real reaction to Luna's revelation.

Twilight almost fell from Luna's back, slamming down on the floor on her side, and scrambled quickly to her hooves. Quivering uncontrollably, she bowed low for several long moments before looking up into Celestia's eyes.

"You Highness!" said Twilight, "Please forgive me, I didn't want to go, I swear!"

Celestia walked to Twilight, and placed one foreleg over her shoulders gently.

"What did Twilight tell you, Luna?" Celestia asked casually and looked over to her sister, as if to be certain.

"She has told me nothing," said Luna, "She possesses the irrational belief that we will harm her; she clearly requires medical attention immediately."

"That's a good filly," Celestia slowly petted Twilight's mane as the smaller alicorn sat staring at the ground, "It means a lot to me that you kept your silence."

"In addition we- what?" Luna quirked her ears up and turned to face the two others.

"Now Twilight," Celestia asked, "You once asked me what I would do if my sister discovered you. Do you remember what that was?"

"Y-yes your Highness," Twilight stammered.

"Good, because we're going to do that now," said Celestia, "Are you on my side little Twilight? Don't think that I can't take on two at once if you're not." Celestia knew she couldn’t if Twilight focused, but surely Twilight thought otherwise.

Speaking to her at all this way before attacking Luna increased her gamble, but Celestia wanted the guards who were observing to clearly understand what was happening. There was no longer a point of hiding it.

"I am on your side, your Majesty," Twilight muttered, nodding her head.

“From behind then,” Celestia said to Twilight simply.

Celestia drew her fore hoof back and moved casually to Luna's other side. Luna turned to face her surely enough, leaving her back side facing Twilight. It was a pretty stupid thing to do, but the entire conversation seemed to addle Luna every bit as much as Celestia hoped. Twilight’s horn glowed momentarily, as if she was checking to be sure it still worked

"What is the meaning of your words?" asked Luna sternly, "Do you know something that we do not?" Luna’s brain refused to connect Celestia as the perpetrator. It just wasn’t in the realm of possibility. Surely there was some other explanation.

"Yes Luna, yes we do," said Celestia, "But before we tell you what we know, I did want to say that I love you, and will miss you... though not enough to keep me from doing this."

"I love you as well, but we- what?" Luna asked.

"Now Twilight," Celestia said casually.

Twilight's mind raced. She was being asked to attack a powerful alicorn, one that she respected and loved herself. She wanted more than anything to attack Celestia instead, but she knew how many souls Celestia had consumed... surely, she thought, Celestia was too powerful for this to even matter. She weighed the options, but in the end she decided she simply could not chance turning on her teacher. No, this was her new life now and she had to accept it if she were to continue her existence.

Twilight charged up her horn, but didn't unleash a beam of magic quite at first. Instead, she moved closer to Luna, within melee range, and rammed her head against her backside. Luna's dark cunt lips were forced apart suddenly as Twilight's horn penetrated Luna's moon pie, sliding down the length and spreading out until Twilight's head came to a rest against Luna's flesh, horn fully inside.

Before Luna could do anything more than yelp, Twilight sent a burst of energy into Luna, a beam blast that passed all her defenses as if they didn’t exist and slammed into her inner gut. Luna convulsed, hind legs giving out and suddenly urinating, yellow fluid pouring from her and draining onto Twilight, drooling down her muzzle. Twilight licked her lips and took in the bitter taste, then kept blasting. Soon Luna lost her bowels too, wet shit splattering into Twilight's mane. Twilight made a face at the smell, but kept up her offensive.

Celestia was impressed with Twilight's maneuver. It was true that even the most powerful being could be defeated if you got the jump on them in the proper way, but to think Twilight could actually damage Luna that much with one blast.

Luna would have likely countered even such a ‘cunning’ attack eventually, but Celestia still had plenty of time to charge up herself, and for a moment all of Luna’s defenses were down. She placed her horn against Luna's and let out a burst of energy right into Luna's skull. Luna's horn sparked and blackened, magic sinking into her skull until it fractured with a loud crack. Still Celestia continued, concentrating her energy onto Luna's horn. With a burst of magical energy, Luna's horn fractured, snapping off near the base and clattering across the floor.

She would have never been able to cause that much damage in a first attack, even a surprise one, if Twilight wasn't literally fucking Luna with her own attack, bobbing her head and hammering herself in, dry horn chaffing Luna's insides and sending torrents of pain up into her womb and through her body.

"That's enough damage Twilight," said Celestia, panting from the amount of energy she had just expended, "We don't want to kill her right off."

Twilight's energy tapered off, finally giving Luna a rest, and she used her magic to wipe most of the waste matter from her hair. Twilight didn't, however, stop what she was doing. Stoking her horn like this felt surprisingly good, and she grunted softly as she continued to pummel herself into Luna's pussy, feeling a wave of pleasure slide down through her brain and body. Celestia allowed her to continue and looked down at Luna's face instead.

Needless to say, this all got the attention of the guards in the throne room, both Celestia's and Luna’s. They were all surrounding the trio of alicorns, eyes wide with shock and weapons drawn, but clearly unsure of what to do when the princesses were having a life or death struggle in front of them. Should they attack the princesses? Each other?

"S-seize her--" Luna managed to make her voice boom one last time.

"On the contrary, I think you’ll be seizing her, you sexy night guards included," Celestia responded simply, then added quickly, "After Twilight is done."

"Can someone please explain what is going on?" a bat guard asked, unable to keep his eyes off of what Twilight was doing.

"S-she killed them-" said Luna, "The missing Elements and ponies, and has possessed Twilight Sparkle."

"Is t-this true?" the guards all looked over at Celestia.

Celestia considered her answer carefully, then decided 'what the hell?', "Not all of it," said Celestia, "I didn't possess Twilight. I’ve broken her to the point that she's doing this of her own free will, aren't you Twilight?"

Twilight moaned and spoke between pants, "Yes... your... highness... I am... enjoying... myself."

Suddenly Twilight squealed, cutting off any chance for further conversation until she was done. Her horn glowed brightly, energy firing off uncontrollably as her body was shaken by her first horngasm. Her legs became wobbly and her own slit splattered fluid that then visibly drooled down her thighs. Once done, she slowly pulled her horn free, blinking several times and looking back to Celestia.

Celestia waited patiently for the squealing to stop and then turned back to the guards. To the closest she asked, "Tell me, who is the highest ranking royal in Equestria?"

"Y-you, your Highness," stammered the guard.

She turned to one of Luna's guard, "So then who has the final say on all the laws? Who can override any other pony in matters of justice?"

The guard bowed slightly, "Only you, your Majesty."

"So if I myself make the law, is it even possible for me to break it?" Celestia asked to the open room.

There was silence, but a few of the guards shook their heads slowly.

"And of course," said Celestia, "Anyone that doesn't want me to do what I want to do... well that would make them treasonous, now wouldn't it."

"You are treasonous..." muttered Luna.

"No sister, I am in control. The only reason you have any authority at all is so that you wouldn’t feel left out, and thus YOU are treasonous," continued Celestia, "I murdered a number of civilians for reasons that are my own, including most of the Elements. Do any of you have a problem with this?” She then added more stiffly with a clear threat in her voice, ”Or perhaps your families might have a problem with it?"

The mention of families brought more head shaking, enthusiastically so, or at least pretending to be.

"Then this is what will be done," said Celestia, "Members of her own royal guard will escort the former princess, Luna, to the execution plaza to await her judgement as the traitor she is. I have already put Pinkie Pie into protective custody here in the palace, so tell her guards that she may not leave her quarters until I come for her. Do not inform her that I am coming to murder her. Do you understand?" She turned to Twilight, "You have proven your absolute loyalty, which means once we're done with this, you'll be my new right-hoof mare. Doesn’t that sound fun? Now come along."