Twilight Sparkle woke up at 7:00 in the morning. Today was another day she had scheduled for studying, though she had spent yesterday with her friends, and would do the same tomorrow.

She put on her dark blue tank top and skintight red shorts she had worn on her last study sessions.

"Spike, would you mind making lunch and supper for me, and getting me some drinks while I'm studying?" said Twilight.

"Of course," said Spike.

"I'll eat my dinner while studying. I've got so many books I'd like to read, I'm not taking a break for any reason."

"Not even to go to the bathroom?"

"Not even that." Twilight decided she was even going to mess herself if she had to take a dump.

"This'll be fun as always," said Spike.

So, Twilight sat at her table and started reading through her first book.

"Spike, can you get me a glass of water?" said Twilight after the first ten minutes.

Spike poured a glass of water and handed it to Twilight, who drank it. Spike sat behind her the whole time for two reasons: First, to answer her requests. He was her number one assistant. Second, so he wouldn't miss Twilight going to the bathroom in her shorts, which he found hilarious every time.

Every fifteen minutes or so, Twilight would ask for another big glass of water, which Spike would quickly get for her.

At 9:00, she needed to pee. She continued studying, until a half hour later when her bladder started to distract her. So, without taking her eyes off the book, she started to pee, soaking the crotch and butt of her shorts and forming a puddle under her chair.

*pssssssssss*

Twilight sighed in relief while Spike laughed, as he always did. Twilight ignored him, as she was used to it by now, though a part of her wanted to giggle at his amusement.

She continued studying in her wet shorts, and before long, it was 12:00.

"Spike!" said Twilight.

"Yes?" said Spike, who had been waiting for Twilight to pee again, having quickly visited the bathroom himself twenty minutes ago because he didn't think she'd appreciate him peeing all over her floor, even if she was doing the same.

"I'd like some hay fries and a big plate of beans for lunch."

"Right away!" said Spike. "Extra beans for you." Twilight loved beans, and Spike loved to hear her fart.

Before long, Spike served Twilight her lunch.

"Spike, what took you so long? I peed myself waiting for you." Her shorts had gone from damp to wet before Spike had come to the table.

"Um..."

"I'm just messing with you. You did great as usual. Ooh, and you brought extra beans! You're the best assistant a pony could have!"

After casting her spell on the beans to double their gassiness, Twilight wolfed down her lunch while still reading.

About a half hour later, she let loose with a flurry of wet farts. Spike laughed hard, and Twilight giggled a bit while still focusing on her books.

At 3:00, about ten minutes after she peed again, she let out a wetter fart and nearly soiled herself. She was a little surprised, but continued reading, and soon she felt an intense pressure in her bowels. Undoubtedly this was because of the feast from yesterday, and all the cake.

Twilight grunted as she released a brown mess into her shorts, and sighed in relief. She enjoyed the warm feeling of messing herself, as well as the convenience of not having to pause what she was doing.

Spike laughed even harder at this, despite the smell that had now entered the room.

Twilight continued to study in her soiled shorts. At 5:00, she had Spike make more beans for her, which she ate after enhancing them. She wet herself again fifteen minutes later.

Over the course of the study session, she drank more water, peed several more times, and messed in her shorts once more at 9:00.

By midnight, Twilight was done. Her shorts were wet, filled with manure, and smelled horrible. And she loved it. She could now add messing to her list of dirty activities.

She stood up. "Wanna smell my butt again?"

"No thanks, I can smell it from here," said Spike.

Twilight giggled, and helped Spike clean up her puddle and the seat of her chair, not wanting him to have to do it on his own. Then she walked into the bathroom to change.