Twilight Gains Weight

Warning: This story contains breast, butt, and stomach expansion along with anthropomorphic ponies from the popular TV show, My Little Pony: Friendship is Magic. If you are not interested in anything like that, then don't read. If you are, then be my guest.

Twilight looks around Ponyville after her trip to Apploosa, seeing that everypony had skiny waist and bellies. She looked at herself and realized Applejack's family has stuffed her once again. She sighed, heading to her castle to look for a solution.
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She weighed herself as she looks down and gasped.

267 lbs?! She thought How could I gain that much weight?

Twilight thought, instead of wasting her time jogging or losing weight, she could make a formula that could do all of that for her. She wasn't lazy, it's just the fact that she was exhausted from dancing and other things with the Applossans. She needed some rest.
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Twilight tossed and turned, unable to sleep and thinking about her stuffed belly and how big it was. She got up and turned on the light. She walked to the bathroom to check herself out and make sure everything was fine. She rolled up her shirt past her stomach to reveal a little, chubby horse. She sighed.

"I've never gotten this fat before. I've usually stayed thin my whole life. I've got to do something about this!"

She ran downstairs to her laboratory as she grabbed her lab coat and protective glasses.
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She had been working for 6 hours straight until the morning trying to find out a cure for her being chubby. She reached for the hydrogen peroxide and put a tad bit in the vile, causing a small explosion.

"And a bit more oxygen..."

Before putting the tiny drop of oxygen, Spike came in, telling her breakfast was ready.

"Gah!" She yelped, putting more than a drop in the vile. "Spike! Don't scare me like that!"

"Sorry." He chuckled. "Anyways, your breakfast is ready. Come upstairs."

"Ok..."

She sighed as she leaves the basement, "weight loss" potion in hand.
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"So what we're you working on down there?" Spike asked, putting away the dishes.

"Well, I've gained a bit of weight over in Apploosa so, I've decided to make a weight loss potion. Hopefully, I got it right."

"I don't think you've gained weight. You look normal to me." He squinted. "Well, maybe some of the weight went to your chest."

Twilight blushed as she grabbed her shirt and pulled it up, causing the bittom half to pull up and show her stomach. She groaned.

"But, besides your butt being a tad over weight, you look like any normal pony in Ponyvile. So, I honestly don't know why you want to loose weight."

"I'll just ask for Applejack's opinion."

As Twilight heads to Sweet Apple Acres, she takes a sip of her elixer, causing her breasts, butt, and stomach to gain 2 pounds.
Applejack sees Twilight coming as she waves her hand.

"Hey Twi! How ya doin' after the trip?" She asked, wiping sweat from her forehead.

"I'm doing fine." She tried to pull down her shirt. "So, I gained a bit of weight due to your family feeding me so much food. So, I decided to make some weight loss elixer. I wanted to ask if you thought I should drink it?"

She looked at her stomach, seeing it was a bit chubby.

"Well, you do look a bit on the chunky side today. I would just work and exercise. That's what makes me loose weight." She smiled.