Princess Twilight Sparkle sighed contently to herself as she flipped the page of her book. She was laying upon her bed as the warm rays of the sun shined through her window. After a hectic week of princess business and helping ponies with their various friendship problems, she finally had time to be alone and do whatever she wanted.
She paused, looking around her room. It was quiet, and strangely, magic in its stillness. Dust particles floated and danced in the beams of sunlight like fairies at dawn.
At that moment, there was nowhere she would have wanted to be.
However, inopportune things always seem to happen at the most inopportune moments.
A sudden grumbling sound emanated from the princess' stomach, followed by a familiar feeling that told her that her tranquility was to be abruptly interrupted.
"Ooooooh-not now~!" She groaned to herself, sensing that this wasn't one that could be ignored.
Twilight had to shit bad. She rose from her bed, but quickly got back down, for two reasons. The first was because she knew what would happen if she left her room. Something would happen and she would have to go save Equestria….again! The other reason was because she honestly didn't think that she would make it the mile and a half of castle hallways to the bathroom.
In a small panic, she looked around her room for some solution. The first thing that crossed her mind was the window, but she quickly banished the notion for fear of her excrement landing on some poor passer by.
Twilight knew her body, and she could feel that this one was going to be big and stinky.
Suddenly, she remembered something that would help. She carefully climbed down from the bed and looked underneath. Applejack had decorated her castle with (what she called) some "rustic farm equipment". One such item that Twilight found was an old and obsolete item from tester years.
A chamber pot.
It certainly wasn't the most preferable solution to her problem, but this way she could fill it up and then teleport it to a volcano. She pulled the pot out and blew some dust from it. The pot itself was made of brass. It had a round body that looked like it could hold over a gallon. Twilight did feel a little bad about using a gift she got from her friend for such a….purpose, but Twilight was desperate, and she was sure that Applejack was glad to be rid of the thing.
The princess set the pot on the floor and began to get into position over it. She spread her hind legs and squatted down till her rump was right over the top of the pot. With a deep breath, she gave a testing push on her lower intestine. A loud fart burst from her anus, and already she could smell the stinky air that was already wafting up to her.
This was completely different from the usual sitting on the toilet. She imagined how she must look, squatting over a pot in her own room. A loud fart broke her from the mental picture, and the stinky aroma caused an unexpected reaction.
She felt her heart start beating faster, and her feminine parts were starting to tingle with a familiar sensation. At the same time she could feel the mass of stinky filth inside her bowels begin to make its way to her clenched sphincter. She farted once again, but this time it was long and loud, and followed up by a wet splatter of what she could only assume was liquid shit.
"Nggg!" She grunted, pushing out a lump of shit that fell into the pot.
Her urethra relinquished a small stream of piss that hit the pot with a light tinkling. The mass inside of her felt bigger and bigger as she pushed and labored to get it out of her, meanwhile her pussy was feeling very needy like she needed to touch herself.
Hesitantly, she lifted her hoof and brought it to her soft pussy lips, gently brushing against them and finding the sensation to be really stimulating. Twilight rarely ever indulged in pleasuring herself, despite Rarity's insistence that it was "fabulous". She usually only did it once a month, aside from that time of the year when 'the heat' would drive her half crazed.
At that moment she felt a huge mass of shit creep its way out of her anus. She froze in mild pain as the fat, stinky log slid out accompanied by several small farts. Her hoof started drawing circles on her slowly growing clit. Her mouth released a moan that she didn't even know was brewing within. Her touching only got more feverish as she closed her eyes and concentrated on both the pleasure and pain of shitting out such a big turd.
She could feel sweat beads form on her brow from putting so much exertion into her movement. Her tender mare parts were now dripping with her arousal as her stinky feces threatened to choke her.
The log was soon growing to what Twilight could guess was about nine inches. It was painful, but the pleasure she got from her pussy was making up for it in spades. Twilight grasped and sighed openly now, unsure about the feeling she was having. Holding her breath, she gave one last push and felt the turd fall from her ass, followed by a slew of wet diarrhea spewing out of her now tender anus. Her hoof touched a sweet spot, and she started to go tense as a powerful climax wracked her body. Something wet came out of her urethra, which Twilight first thought was cum, but the strong smell told her that it was her own piss.
The princess threw her head back as she screamed while shitting and pissing and coming at the same time.
She was about to fall over, but a spell kept her up as she rode the after waves of her orgasm. When she opened her eyes, she was greeted by a calm and serene room. She sighed in content as a feeling of peace and euphoria filled her from hoof to horn.
She took a moment to rest before opening a window to air the place out. She then teleported the pot to the inside of a volcano far far away.
After cleaning herself up, she got back up on her bed and resumed her reading from where she left off.
"Ah, such a peaceful day."