Princess Celestia's Living Toilet (Scat)

The hours pass by. The taste of shit and piss still linger in your mouth. Suddenly, the princess' large rump fills your field of vision.

Was she back to shit again? The mouth hooks tense up, and forces you to gape wider. You try to mentally prepare yourself, but there is nothing that can prepare you from what's about to happen.

Her disgusting plothole expands and a much lighter brown than before emerges from it. It looks to be an equally gigantic dump as her last, but it's lighter in color and its texture seems softer and slimier. And it stinks. Not that her last dump didn't, but this is much, much worse. You would have thrown up the shit in your stomach from the sheer stench alone, had the princess not magically prevented your body from doing so.

Its smell is vile and naturally fecal, but more than anything, it's putrid. It's the stench of truly putrid feces.

You groan and whimper, much to her amusement.

She poops, sighing in relief as she lets the slimy shit slide out of her filthy anus and into your awaiting mouth. It tastes putrid. It's like her very shit has started to decompose. You gag violently. Being fed scat this repulsive is by far the most disgusting thing she's done to you yet. Its soft, slimy outer leaves skid marks on every part of your mouth it touched as it glides in. Your tongue is stained completely brown by the filthy log.

She pinches. Your mouth-hooks loosen.

"Eat up."

You are paralyzed by her disgusting waste product. You can't move a muscle, let alone eat it.

"Eat it or Luna gets permission to use you for a week."

You barely register her threat. Your ears, eyes, and mind are failing you. The only thing you register is the putridness of her poop. Its foul taste and smell.

"Congratulations! You just earned yourself twice as much shit, twice as much piss, and twice as many farts for a week! Hope you like liquid food, toilet, because my sister isn't exactly known for her fiber intake!"

The anger in her voice awakens you.

You snap out of it. The feces in your mouth is killing you. There was only one way to get rid of the putrid taste. You start chewing. Due to it being softer, it's faster to get to a "gulpable" substance than her last dump, but its repulsiveness makes it way more difficult. You taste every inch of it as it mushes around in your mouth, mixing with your saliva, staining your teeth brown.

You huff and sniff the putrid air through your nose, readying yourself. You swallow. The first gulp of her disgusting slimy shit slides down your throat. It's the worst torture she's put you through yet. Your entire body shivers and cringes as her scat enters your stomach. You swallow again, and again, moving her feces through you as best you can. It feels like it takes forever, but eventually, only her putrid shit stains remain in your mouth, and you let your tortured body go limp.

You feel the hooks tighten in your mouth, keeping it from closing, your eyes shut wide open. She couldn't be serious. The putrid smell is suddenly reinforced by her expanding rectum. More brown dough, equally as vile as your last mouthful slides out, you scream, but your scream is soon muffled by her shit down your throat. Putrid, putrid, putrid shit. You cry as you eat your second filling.

Then she rises, leaving you to soak in the foul smell and aftertaste. You pass out.