Princess Celestia's Living Toilet (Scat)

When you wake up, your legs are tied to the poles of her bed, spreading your limbs apart on her mattress. Celestia is sitting right next to you, reading a book.

Like clockwork, she figures out you've awoken immediately. She looks into your perthitic eyes, smiling.

"Turn your snout towards the ceiling." She commands, in a mild manner.

You turn your spin your neck so that your muzzle is pointing upwards.

The princess rises. She lifts her hindleg over the bed, so that she's standing on the floor, legs spread, with her round ass looming over your face.

Slowly she lowers her plot onto your face. You are completely swallowed up by her warm, sweaty cheeks. You snout meets her anus, and then she adds her body weight. She sits upright. Her foul rectum pressing down on you hard. Your face is so squished, both from the side by her voluptuous buttcheeks, and from the top by her always stinky asshole, that it's almost airtight. You struggle to breathe in the ironically unbreathable air her anus has to offer. You keep your lips closed tight as you can feel her foul vagina pressing down on your mouth. You just lay still in the stinky torture chamber her ass provides, slowly sniffing away at her disgusting asshole, your face being squished by her weight.

pffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

A long, silent fart escapes her rectum. Since your nose is pressed so tightly against her plothole, most of it is forced directly into your nostrils. It stinks.

Forty hot, smelly minutes pass by. Occasionally She shifts her weight around a bit to change posture, causing your face to squish around between her smelly asscheeks. Occasionally she farts, changing up the hot, static stench of her backside.

When was this going to end?..

Another forty minutes go by of her facesitting torture. With the exception of one particularly nasty fart that made you gag, you've done nothing but sniff her vile scents obediently this entire time. It stinks just as much as the first time you sniffed it yesterday, but you were learning to handle it, and suffer in silence.

But would she ever let you out of her musky, shit-stained fart-cavern?

More time passes and suddenly you feel her tense up. You prepare for another fart, but it was her reaction as someone entered the room.

"Oh, hello my dear sister. Are you here to see our slave."

You can't really make out what's happening, with your ears smothered by her asscheeks, but you hear a muffled conversation.

Suddenly, Celestia rises from your face. Your heart starts pumping as your blood flow is finally unrestrained. Your ears are ringing, and you feel blinded the lid room. The ropes that bind you disappear. You heave for air. As your vision returns, you are looking at Princess Luna.