Trapped In The Moon

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An Alicorn's body was strong--unbelievably so, in fact. With a stomp the earth itself would fracture and break, with a simple spell both sun and moon moved at their will, and their durability allows them to survive being driven through even a mountain. Knowing that, it might not come as a surprise that various... other parts of their body would carry the same unearthly feats.

Celestia, nestled deep within the fetid ring of Luna's plothole, was learning this all too well. Every part of her body was being subjected to pressure strong enough to crush stone, and with each clench of muscle the mare felt her bones creak and muscles flex--it was only by the strength of her own Alicorn body that Celestia wasn't reduced to a red smear within her sister.

Micrometer by micrometer, Celestia tried to pull herself towards the exit. She was scared--and why wouldn't she be? An event like this has never been recorded in the thousand years she had been ruler, so either this was the first time it had happened, or nopony had ever been found to document its occurrence. She even ruled Discord out as the culprit--even at his most depraved, the Draconequus would never subject somepony to this torture.

It was like being buried alive. The only thing Celestia could feel was the warm, slimy walls of Luna's plot pressing against every part of her body like a vice. It was pitch black, and a disgusting filth Celestia didn't want to think about had made its way into her nose, eyes and mouth--it was suffocating, and the only thing Celestia wanted to do beyond escape was scream.

A wave of magic washed over her body, and it was as though a great big flashbulb had went off in her eyes. A sense of displacement without being anywhere different--even a magical novice would be able to know teleportation by feeling alone. Not that knowing helped Celestia any in the long run--Luna had teleported, but Celestia's position didn't change in the slightest.

She was resolved to continue her climb towards escape, when suddenly she felt her center of gravity shift; she felt her organs drop ever so slightly towards her hooves as though she were taking flight, her bodies mass pull back towards Luna's colon, and with an agonizing clenching of muscles, felt it all stop.

The only sign of where Luna was came from the faint sound of a whoopee-cushion from somewhere below. The dining room... Celestia felt a surge of hope blossom in her chest; if Celestia didn't show up to eat, Luna would eventually start looking for her. All she had to do was escape, find someplace safe to sleep, and Luna would seek her out in her dream and this horrible ordeal would finally be over!

She wasn't able to move with Luna's weight bearing down on her like it was, and if the pain in her barrel was anything to go by her ribs were likely broken, and her wings felt like they were about to snap, but all she had to do was wait...

Much to her surprise, she didn't need to wait long before Luna stood up again. Celestia wasted no time in resuming her escape efforts, and whatever Luna was doing out there she was taking long enough that Celestia was confident she would make it out before her sister sat back down.

She was wrong, but even as the familiar feeling of G-forces slammed into her body, she had managed to get close enough to the end that she could afford to wait a little longer. Celestia never truly appreciated how amazing the body of an Alicorn was; her durability kept her alive under the constant assault of Luna's plot, her strength allowed her to pull herself forward, and even deprived of oxygen for as long as she was she was still able to move, think, and live. If she were a normal pony, she would have died a million horrible deaths in this place.

With that thought, a surge of determination washed over Celestia. She was the Princess of the Sun, the mare who brought her ponies the warmth and light of day, the ruling Princess of over one thousand years! She's survived countless tragedies and battles, and once she survived this one, she would ensure nothing like this ever happened to one of her little ponies... and if she wasn't the first,that it would never happened to another.

And so, Celestia waited... and waited.. and waited, until Luna eventually stood back up.

Unfortunately for Celestia, this wasn't the answered prayer she was hoping for. With each centimeter she crawled, Luna's rectum clenched with more and more pressure--it got to the point that Celestia couldn't even move her legs, let alone continue. Once more Luna was aware of her sister, and in a cruel repeat of history Celestia saw the faintest rays of line before her vision was overcome by the blue aura of her sister's magic.

Her own horn sparked painfully in a futile attempt to ward off the incoming wave of magic. Her ideas, her plans to prevent this from happening to any of her subjects--as she felt the foul flesh of Luna's inner sphincter parting along her sides, the magic burying her deeper and deeper within her sister's rear, the determination she felt melted away into despair.

"L-Luna, stop!"

It was a hoarse sound, Celestia's voice, as though she hadn't used it in years. Unfortunately, even if Celestia's voice was normal for her size, the sound still wouldn't have reached the younger Alicorn's ears. The walls separating Celestia from Luna's colon finally reached their end, and with a gasp of air so noxious it made her stomach lurch and lungs lock up, Celestia found herself falling into the soft, slime coated walls of Luna's intestines, the faint blue light briefly illuminating her slick surroundings before fading and allowing the sphincter to once more close.

The inside of Luna's bowels were like a world all to themselves. Celestia's ears constantly twitched as the chorus of gurgles, groaning, and thumping sounded endlessly from all directions. She felt the blood running through Luna's veins throbbing beneath her back, as bile and excrement stained her shining white coat, all the while trying not to inhale or taste the indescribably putrid miasma that made up the air of Luna's depth's--in all of Celestia's years of living, the only thing she had smelt even remotely as bad as this was the Canterlot sewers, and even that paled to the stench fighting to infect Celestia's lungs like a disease.

As the Alicorn moved to stand, her body and hooves sunk into the cushiony floor with a disgusting squelching sound, the overwhelmingly muggy heat radiating from the giant mare pounding into Celestia all the while, driving her already throbbing pores into overtime. As soon as she managed to rise to her legs however, her body was slammed right back down.

Luna must have started flying--no doubt in hopes of finding Celestia. This proved to be a problem for the tiny mare, as each time she tried to stand, Luna would bank, rise, fall, or dive causing her to lose her balance all over again, and almost every time she fell she felt herself slide further and further into Luna's intestinal tract.

Celestia had believed being crushed by her sister's anus had been the worst fate imaginable, but in here? As Celestia's tongue was forced to endure the taste of manure, and her lungs filled with gasses so putrefying they could kill a fly? There was nothing less true than that.

Minutes passed, maybe hours, before the fumes finally began to reach Celestia's mind. Her horn flickered a few times before finally managing a simple light spell, and her hopes shattered completely at seeing the mound of waste several times larger than she was looming ahead of her.

She cut off the spell, not wanting to see anymore, and finally began to break down. Her ponies, her kingdom... she wouldn't see any of them ever again. Everything she'd accomplished in life and this was how it would end for her. Not of old age, or in battle, but in the most revolting organ in her younger sister's body...

She didn't even fight to remain conscious, allowing the sounds of Luna's body to lull her into an restless unconsciousness.