No Pain, No Gain

Twilight made a point of awaking early the next morning to observe the effects of the previous day. She walked very cautiously and quietly down the stairs to avoid waking up either Rainbow Dash or Spike. She found Rainbow Dash on the couch where she left her last night. Dash was sleeping soundly, no doubt she needed it to process the sheer amount of food she consumed yesterday. Between Rainbow's birthday party and the evening long gorging she participated in it was impossible for Twilight to even begin calculating the sheer amount of calories that must of been ingested. Tank was sleeping next to her just as soundly, snuggled comfortably against his owner's soft middle. He had been delivered by Fluttershy later the previous evening.

Twilight carefully moved in closer to get a good look. The changes to Rainbow Dash's body were slight, slight enough that most ponies and maybe even Dash herself wouldn't be able to notice. However, to Twilight who had been keeping careful note of Dash's figure since the start of the experiment, almost any change could be detected. Rainbow Dash's belly was squished out beneath her like a water balloon. A few inches if not more had definitely been added to her waistline. Her flank had absorbed further weight as well. Her cutie marks were now over twice their normal size as they stretched across her rounded plot cheeks. It seemed that Dash's body slightly preferred carrying weight in the rear over the center. There was added fat to be found all over though. Her back legs were becoming thick enough to start rubbing together on a regular basis. Twilight thought she could even see the early signs of a triple chin under Dash's face.

Twilight was already putting her plan for the day together when Spike walked into the living room. She nodded to him to meet her in the kitchen before trotting in. "Alright,Spike, I've got an interesting job for you this morning. You're going to be my assistant chef. Rainbow Dash is going to start her new exercise routine today and I want us to make sure it goes as smoothly as possible. We'll have to prepare some good meals for our guest, and I've also come up with a recipe for some shakes that will definitely help with Dash's workout."

Spike took a good look at the recipe list that Twilight promptly levitated over to him. It was filled with thing such as chocolate, peanut butter, candy, and other assorted sweets. "Uhhh...Twilight, I'm no weight loss expert or anything..but isn't this recipe a little too calorie heavy for a pony trying to get thin?"

Twilight smiled and shook her head,"I've come up with a new spell that will instantly turn the food in a pony's stomach into energy. So all the calories in that shake will only go to helping Rainbow Dash exercise with no worries about adding on pounds," she didn't like lying to Spike at all. However, telling him the true intention of all this would be disastrous.

"Ohhh...I get it. That's a pretty good idea,Twilight. I'll start getting those ingredients together right away," With that Spike got to work assembling various food items. While he did that Twilight focused on preparing a hearty breakfast. Cooking up a wide assortment of hay bacon strips,eggs, and well-buttered toast. Once it was finished she divided the meal into three platters. A few smaller ones for herself and Spike, leaving the rest for Rainbow Dash.

Rainbow Dash awoke to the pleasant smell of hay bacon strips filling her nose. As she opened her eyes she saw both Twilight and Spike in their own spots of the room eating breakfast. She could feel Tank sleeping next to her, but had to crane her neck in order to see him. Just in front of her on a table was a food platter of her own. The plate was filled with far more than she should probably eat but was very tempting none the less.

"Good morning, Rainbow Dash," greeted Twilight, "You better eat up. You've got a hard day of exercise ahead."

"Thanks,Twi," Rainbow Dash replied, "But this is a little bit heavier of a breakfast than I had in mind."

"Oh, don't worry about that. I have a new spell that will turn all the food in your belly to instant energy. It'll work wonders for your exercise. Just eat as much of that as you can and trust me."

Rainbow Dash shrugged as she thought about the idea. There was no reason not to trust Twilight. Plus it would be an excuse to gorge out on the awesome looking meal in front of her. With some effort she managed to shift herself into sitting position, grabbing hold of Tank and moving him safely aside at the same time. She then had to reach around the large doughy sphere that comprised her belly in order to reach her food. Once she did there was no stopping here. The first taste of hay bacon strips hitting her tongue sent her into an eating frenzy. Not long after the strips were finished she was practically shoveling multiple servings of eggs into her mouth at once. After that only the toast remained, but not for long. Despite their being several slices it was all gone in just a few minutes. She laid back and gave her rounded belly a satisfied tap, causing it to ripple. It was only now that she noticed Twilight and Spike looking at her. Spike in particular seemed shocked. "What? You said eat as much as I can. Now let's get outside. I hope this spell is worth it, Twi."

With that Rainbow Dash rolled off the couch and got to her hooves. It was a good thing she was taking her workout into overdrive. As just simply getting up and moving around seemed to be becoming a slight chore. Something had to be done to help combat her growing laziness. Although she was confident that her new found problems would start going away after today.

Twilight followed Rainbow Dash outside, taking a moment to note the shrinking clearance between Dash's widened hips and the door-frame. Once outside Rainbow seemed eager as ever to get started.

"Alright,Twi. I think I'm going to start with a good jog. Go ahead and hit me with that energy spell."

Twilight nodded as she charged her horn and casted her magic. In reality it was simply the same spells she had been using on Rainbow Dash for the past month. Hopefully she'd be tricked into thinking the advertised effect was happening instead. "So Dash, how do you feel? Did it work?"

Rainbow Dash paused thoughtfully, "Well, my stomach feels lighter. Maybe it did?"

"Hmm. Perhaps it'll just take time before the energy from the food kicks in. Go ahead and start running. I'll be right behind you."

On cue Rainbow Dash took off running. It was closer to simple jogging, but that was probably the fastest Rainbow could now manage with all the extra bulk. Twilight followed close behind and soon became very satisfied with her new job for the day. The jogging caused the fat on Rainbow Dash's figure to move dramatically. Her large dome-shaped belly swayed back and forth, part of it occasionally smacking against her thighs. Her thick back legs were so close to rubbing up against each other that Dash was constantly trying to spread them farther apart. The most hypnotizing part of the display was none other than her flank. The two over-sized cheeks that comprised her plot were bouncing and shaking without regret after each step their owner took. That huge jiggling plot seemed to demand the attention of anypony who glanced it. Twilight happily gave in to the demand. So much that she often had to remind herself to keep running and not fall behind.

The display was short but sweet as Dash soon collapsed on the ground and began panting. The two of them had only been jogging for a couple of minutes and were still within short range of the library. Twilight saw this as the perfect chance to begin her plans for the day. "Just take a quick break,Rainbow. I'm going to go back to library and come back with something that should help you keep excercising."

Rainbow Dash merely gave an exhausted nod as Twilight quickly trotted off. Soon she returned holding up an "energy shake" with magic. She set it down near an exhausted Rainbow Dash who greedily chugged it down. Afterwards she casted the usual spell. "Well, Rainbow, feeling energized again?"

Dash shook her head,"Not really, still feeling a bit tired."

"Hmm. I may need to increase the reaction time of this spell a little, but it'll kick in soon enough. Best thing you can do is get back out there and push yourself until it starts working."

Rainbow Dash slowly picked herself and began jogging at a light pace again, with Twilight right behind her. As they went through the town Dash's new figure was far from unnoticed. Nearly everypony they passed by stopped what they were doing atleast briefly to look at Rainbow. Some seemed disgusted, but most where either shocked or enticed by the sight. There was quite a few sets of wandering eyes looking over the more jiggle prone parts of Dash's body. Her swaying belly and bouncing plot competed for most of the attention.

By the time they reached Sugarcube Corner Dash was out of steam again. She collapsed on the ground panting heavier than before, "Phew....I don't think energy spells....will help at this point. I'm done...for today."

"That's alright, Rainbow. You did pretty good today.", Twilight knew that was far from the truth. In fact, Rainbow Dash had only gotten a limited amount of real exercise done. However, it was best to make her think that her current workout regime was going to help her lose weight. It might be enough to distract her from her continuing gain for awhile. "I think you deserve an award. How about we go inside and have Pinkie whip up some nice snacks?"

Some energy returned to Dash at the mention of food. The prospect of snacks now motivating her more than any workout could. "That sounds like a great idea. With as hard as I worked out today I don't have to worry at all about what I eat."

With that the two entered Sugarcube Corner and were quickly greeted by Pinkie Pie. "Hi there Twilight, Rainbow Dash. I'm glad you stopped by. I need some ponies to taste test for some new recipes!"

"We'd be happy to, Pinkie.", Twilight replied, "We had actually come in here for some snacks anyways. Rainbow Dash has been having a hard workout today and she's really hungry."

Pinkie Pie darted out of the room and into the kitchen before returning with an assortment of different flavored mini-cakes. Each brightly colored and indicating their unique combination of flavor. "There's plenty to choose from; Lemon Marble, Chocolate Cheery, Butter Banana...."

As Pinkie Pie continued listing off the flavors Rainbow Dash sat down and began to eye the assorted cakes with more and more temptation. Before Pinkie had even finished listing them all Dash dove in and began scooping out slices from multiple different cakes. Shoveling down the sugary deliciousness with reckless abandon. Twilight watched with awe. Every passing day her new spells began to demonstrate more long-term effects. Dash hardly seemed aware of how much she was eating anymore. It was if gluttony was becoming instinct for her.

Within almost no time at all the once vast assortment of baked goods was gone. It was all packed away tightly within Rainbow Dash's belly. She leaned back in satisfaction as Pinkie Pie looked on an amazement. "Wow, Rainbow. Those must of been good. What did you think?"

"Those cakes were awesome. Just one question though, got anything I can take to go?"