Trapped In The Moon

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A sudden jolt shot through Celestia's body, shocking the mare back into consciousness. While it wouldn't be a lie to say Celestia was relieved that she had woken up, the state she found herself in did little to stoke the fires of hope that struggled to burn within her. The first thing she noticed was the unbelievably horrid taste in her mouth, the burning in her eyes and the feeling of something trapped within her nostrils. Her legs, her wings--her entire body was trapped within a warm, firm substance that refused to give no matter how hard she struggled.

Celestia wasn't stupid. She knew where she passed out, knew by the flavor pervading her tongue and stimulating her gag reflex that she was trapped within the reeking refuse of Luna's colon. For a moment, she even believed she was still lost within the winding tunnels of the Alicorn's bowels--that belief was ended as a hot liquid began to seep threw the walls and begin to soak into her coat.

The mare pushed aside the more toxic thoughts that flooded her mind and instead focused on the one good one; she was in the toilet, which meant she still had a chance to escape and find help--that chance would be gone the moment her sister flushed, so she had to act fast. She gathered up all the strength left in her body, and with it she tried to move. She had no way of knowing how deep she was within the mass of waste, but she knew that she couldn't be that deep within it--she struggled, and she struggled, but while her legs were able to push some of the filth away, it was not enough to push through.

For the first time in centuries, Celestia felt true and utter despair. She wasn't strong enough to break free... the thought of Luna unknowingly flushing her down into the Canterlot sewers, where eventually even her Alicorn body would fail her.

That thought, the thought of dying in a sea of refuse, was what gave her the strength she needed to break free. Anger and determination filled her body, and while the sludge she was trapped in kept her from moving, it did nothing to stop her magic--she ignored the pain ripping through her head, focusing solely on gathering up all the magic she could before releasing it in one, powerful burst.

No more! Celestia was the princess of the sun, the ruler who kept Equestria running for the past thousand years, an Alicorn with enough power in her body to move both sun and moon! She would not meet her end in a toilet bowl!

As the spell faded, Celestia soon felt the rushing of water slam into her form. The warm liquids mixed with the thick, clay-like excrement stuck to her fur made for an all around unpleasant feeling as the Alicorn swam, kicking and flapping, towards the surface of the water. She was going to escape; even as the occasional, building sized logs of waste splashed into the yellow-tinted waters and threatened to pull her down as they past, she persisted.

With a gasp of fresh--if not odorous--air, Celestia finally reached the surface. While she wouldn't admit it, the sight of Luna's rear looming above her, blocking out all but the thin rays of light shining in from between her legs, shook the tiny Alicorn's resolve, even if for only a moment.

She had been at the mercy of her unwitting sister's posterior for the entirety of the night. She had been inside of her, had been caked in waste, and squeezed out the opening that, even now, quivered and puckered to allow yet another mound out from the winding tunnels laying behind it.

It was only because of the explosion that erupted from the filth covered sphincter that broke Celestia from her trance. She was so close now, she just needed to go a little farther. Forcing her eyes away from her sister's plot, Celestia gave a mighty flap of her wings and lifted her body from the pond, even as she channeled more and more magic that she didn't have to her voice.

"LUNA!" she cried, flying ever closer and closer to the opening in her hindlegs. She flew past the logs of waste as they fell from the massive mare's body above. She flew high enough to make out the giant abyss of Luna's marehood, and even lost a few inches of air as she was unexpectedly shot by a burst of pee. As she grew closer to the light, she was able to make out the fine hairs--trees, in her current sized--of Luna's coat until finally, finally, she reached the outside of the bowl.

Celestia, having extended all of her patience, looked up the massive blue body of her sister--still flying--and released her magic in one, amplified word.