Create a new version of paste:

 Pinkie Pie was laying down on the floor in a large bathroom, with cardboard all over the place. She was smiling and rubbing her pussy with one of her forehooves, building up excitement for the routine event that was about to occur. Twilight, Rarity, and Rainbow Dash were all standing over her with their rears facing her. Rarity asked, “Ready, darling?”
Pinkie exclaimed “Yep! Bring it on!”
Twilight’s horn shined and all three of the standing ponies shuddered and groaned as they felt a sharp magical bloating and cramping feeling in their stomachs. Then, they simultaneously began releasing copious mounds and globs of thick, wet, warm shit that all landed on various parts of Pinkie, including on her face and in her mouth and nostrils. Pinkie began rolling back and forth so she could get her entire body coated and caked to the max with the monstrous dumps, as it meshed with and stuck to her fur. As the other three mares continued to poop, they also began to urinate profusely, to the point where each of them was releasing a messy mini-waterfall rather than a poignant, focused stream. As their piss hit their shit once it had landed on Pinkie, it essentially “melted it”, the warmth of the piss breaking down the softness of the large shit. There was so much shit spewing from the mare’s puckered anuses that Pinkie’s coat practically looked completely brown now; only small patches of her bright pink fur were visible among the enormous coating of thick waste. She gulped down blobs of it as it fell directly into her mouth, almost greedily. She really enjoyed this. She began intensifying her manipulation of her mare parts, growing close to climax as the other mare’s finally finished up their shit bukkake. But right when Pinkie thought she was close to cumming, she began to feel drowsy. Her eyelids weakened, and she fell asleep covered in fresh, raw defecation.

When Pinkie woke up, she was on her back, her forehooves tied together behind her, and her back hooves spread open above her. She was blindfolded as well. She wasn’t in any pain though. Something else felt weird though…there was something in her vagina as well as her asshole that felt awkward. And something was attached to the area around her mouth…she squirmed a little, trying to figure out what was going on. She heard Rainbow Dash say, “Oh! She’s awake!”
Twilight added, “Finally…” and used magic to remove Pinkie’s blindfold.
Pinkie could now see that she had a large, plastic, clear tube with one end having a part inserted into her anus and vagina; and the other end attached to her mouth. This way, when she urinated and/or defecated, it would be forced to travel directly into her own mouth. She uttered out, “Why the…?”
Rarity was also present, and used her magic to unveil a camcorder. Apparently they were going to film the whole thing. Those freaky ponies. “Relax dear, we’re just making another one of those classic home movies. Believe it or not, this was your idea in the first place. You were just drunk and horny when you came up with it.”
Pinkie was nervous but not overly scared. “Uh…okay…guess I’ve done weirder things than this before…oh!” She suddenly felt struck with the feeling of having to shit, really badly. Uncontrollably. And it wasn’t just ordinary shit. She involuntarily released a splattering spray of chunky diarrhea that traveled down the tube and into her mouth. She gagged at first—she was used to tasting and swallowing shit, but never her own, and not wet diarrhea either. But gagging made it difficult to breathe with this setup, so she quickly learned to gulp it down, almost like soup. She continued to blast diarrhea out and into her own mouth for a good long minute, until finally Twilight’s spell wore off.
That’s when Anon opened the door and saw what was going on. “Uh…what are you three doing with my marefriend?” (he was referring to Pinkie Pie)
Twilight said, “Oh! Uh…heh…Anon…didn’t expect you home from work this early…this is…um…something we just…do…sometimes…”
Anon saw the camera. “Oh, that’s fine. Send me a copy, alright?”
“Y-yeah…”
“Alright, I’ll let you finish.” Anon smiled, tipped his fedora to the four mares and moonwalked out of the house.
“Well…that was awkward. Rarity, did you get all that?”
Rarity said, “Yep! But honestly, Pinkie, what do you see in that man?”
Pinkie said, “I don’t know how to explain it. It’s weird. It just…works. He’s a nice guy.”
“Nice guys finish last…”
“Not with me, Rara. Not with me. Now can you please get me untied and get this dirty tube out of my ass and cunt and face?”
“Sure…”