Princess Celestia's Living Toilet (Scat)

She sits down on her bedside, and her blanket magically wraps around her curvy ass and thick thighs. A flurry of paperwork appears in front of her with a spark of light.

Meanwhile, you still lay absolutely still on the ground, her filth slowly drying out in your face. You keep your mouth shut tight, as your lips are covered in her cunt slime from whenever she shoved your muzzle inside it, and you do not intend to get any into your mouth. Every breath you take is still tainted by the horrible filth smeared on your nostrils.

The princess is now lying on her side, levitating the quill and paperwork in front of her.

After a couple of minutes, you hear her groan. You feel yourself being levitated again. Your mind is filled with fear. She is moving you towards her laundry basket. The lid goes off and a pair of her dirty underwear flyes out of it. The snatch area is as slimy as a snail track, and the butt area as brown as a chocolate bar. You whimper and kick around your air-bound hooves, as you feel your mouth being pried open.

You gag as the filthy panties slide into your mouth, the shit-stained part being dragged right across your defenseless tongue, followed directly by the slimy pussy-puke. The taste of shit and dirty cunt-sauce overpower you completely.
You start to cry again. Suddenly feel yourself move towards the bed. A ball gag enters your mouth, keeping her disgusting panties in place, and ensuring you can only breath with your nose. You feel your front hooves being forced behind your back, and cuffed. Your heart beats like never before.

The princess chuckles again. "I have to fart." Her words make you struggle even harder.

You are put down behind her blanket-covered ass. She lifts her hind leg, creating an entrance between the blanket and the mattress. The familiar smell of her butt oozes out the tiny opening, making you cough against her panties. Slowly your face is being pushed towards the ass cave opening.

"Get ready to smell my farts." She says with a giggle, as your face enters the blanket and your snout is placed half a centimeter away from her oozing asshole. It twitches. You brace yourself. She farts. Her ass gas starts to fill the chamber. It's rotten, primal smell momentarily overpowers the smell of her anus, before their foulness blends together. More repulsive ass gas pumps out of her plothole. The humidity rises. She pushes you closer to her butthole right as another unbearable, putrid fart is pushed out. You wiggle all you can and whine loudly. She farts again.

After about a minute of this torture, you feel your nose leave her anus. You are placed on your back. You feel the princess shift her weight around, making sure not to lift the blanket and accidentally let some of her ass gas escape. You feel her ass loom over your face. She sits down on you, and your head is completely swallowed up by her thick cheeks. Your snout meets her asshole, and her weight pushes your face down into the mattress, making a canyon in the fabric. Her anus is resting heavily on your nose, as she facesits you. Luckily, she's large enough that her ass cheeks can sit on the mattress, even with your head under her rump, so your skull isn't crushed completely. It's warm, moist, tight, heavy, and of course very, very stinky.

You feel her anus expand against your snout. More disgusting farts pump out, en masse. Your entire face is showered in her rotten ass gas. She starts to bounce lightly on your face. Every time her ass pushes down on you, she farts. Fart. Fart. Fart. Fart. Fart. Fart. Fart. Fart. The torture is unending.

Her gas is killing you, and you feel yourself drift into unconsciousness under her heavy rump. This is your life now