The Cookbook
One day, the Cutie Mark Crusaders, or CMC for short, came across a very old recipe book within the Golden Oak Library (correct me if I'm wrong about the library name). Inside, they found all sorts of tasty treats and decadent sweets for them to make. The CMC, being the CMC, decided to try out some of the recipes in order to get a cooking cutie mark.
"CUTIE MARK CRUSADER MASTER CHEFS!" The trio yelled at the top of their filly lungs. However, many people responded with a quick hush and an annoyed glare. So Applebloom, Sweetie Belle, and Scootaloo all went back to Applebloom's house to try out the recipes.
Once the group had reached the end of their journey, it was time they got to work. Following each step carefully, they set out to create a delicious blueberry pie. They made and rolled the dough, they placed the dough in the pan and threw all the homemade blueberry pie filling within the dough, covered with another piece of dough and tossed in the oven for about an hour. During that time, the CMC prepared all sorts of goods, all ready to be put into the oven. As the pie finished, two trays of cookies replaced the empty hole on the oven rack.
"Oh boy, we really outdone ourselves! What do you think Sweetie?" Asked an eager Scoots, wanting to dig into the pie.
"I could eat the whole thing now... It looks so good!"
"Maybe we should share some with mah sis. It may not be her favourite, but she sure does love a pie!" Applebloom chipped in.
"Sure, then we can get an expert's advice!" Sweetie replied, curious as to how much Applejack would like their treats.
"Somethin' smells mighty fine in here!" Exclaimed a tired and hungry Applejack as she open the door to the kitchen.
"Hey sis, wanna try some pie?"
"Is it mah favourite, is it Granny Smith's apple pie?"
"Cutie Mark Crusader Blueberry." Responded Applebloom, giggling at her sister's mood spike.
"I'd love to try some sis. Give me a plate!" Applebloom handed a plate of pie to Applejack, who immediately started scarfing down the slice. The fluffy crust perfectly balanced the sweet filling of the blueberries. It was the best pie Applejack had ever eaten, and she has had a few pies back in her days. She took the rest of the piece she had, and shovelled the rest of the slice in her agape maw. When she finished, Applejack was slightly disappointed, with good reason to be. She wanted more, but she didn't want to steal the rest if the pie. So she decided to ask nicely.
"Howdy Applebloom. I was wondering if you would like to give up the rest of the pie? It's very good, and I wanted to have mo- I mean wanted to have more people over to try some!"
"If you want it, go for it! I'm glad you enjoyed it!" The orange pony thanked her younger sister and left towards her room, pie in hoof. Applejack made it to her quarters, and closed the door.
She stared at the pie with a sinful grin in her orange muzzle. The pie was all hers to devour! She was about to take a slice, but realized nopony was watching. She dug in, eyes closed and mouth open. When she made impact, blueberry filling splashed upon her face. The sweet, blue pie was heaven in her mouth, as it danced around her tongue and down her esophagus. Bite after bite, the pie was devoured, never to be heard from again. However, her stomach was loud and clear.
*Rumble.* "Oh sweet Celestia, how can I still be hungry after eatin' all that pie? Oh well, time to see what else mah sis whipped up!" Applejack made her way back to the kitchen, unaware if the changes happening to her body...
"Hey Applebloom! Got any food I can get my hooves on?" Applejack asked as she came through to the entrance to the kitchen.
"Wow sis, that was fast! I thought for sure you would be done after eatin' an entire blueberry pie."
"Nope, not me. I've got a bottomless stomach!" The orange pony went to pat her core area. And was greeted with a small, soft layer of fat. "Hmm, don't remember that ever bein' there. Oh well, nothin' a bit of applebuckin' can't fix."
"Here Applejack." Applebloom said, holding out about 3 dozen cookies. "These are for you."
"Aw shucks sugar cube. Thank ya kindly!" The bearer of the Element of Honesty made her way to the fridge to retrieve the milk from inside. She poured herself a glass and say down comfortably with the food. "I guess I should just eat some and save some for later..."
As soon as AJ took a bite out of the warm cookie, she knew that her previous statement wasn't going to stand true for much longer. The chocolate chips that had melted perfectly had made the delicacies ooze with delightful flavours. Shortly after, she took another, then another. She was soon shovelling as many as she could fit into her mouth, trying to get as many tasty cookies as possible. There was only one problem though.
Once on the lips, forever on the hips.
AJ's frame started expanding when she ate each cookie. So by the time she finished her 1st dozen, her belly was already in her lap and was having trouble with her newfound arm fat. After the 2nd dozen, her large legs started to touch and rub together. And after the last cookie, her plot took up the entire couch she was sitting on. Her marvellous frame had roll upon roll everywhere, and her cutie mark was a lot bigger than its original size. Her belly slightly dragged across the ground whenever she walked on all fours, and her entire body jiggled and shook whenever she took a single step.
"That was a good feastin'! Thanks for making the delicious food Applebloom!" Applebloom could only stare, dumbfounded by her sister's new size. "And don't worry 'bout mah weight, it'll all be back to normal soon." The young filly picked up the cookbook they found, and read the title. ~Delicious Feasts for Larger Beasts: delicious and fattening food anypony could make!~
"It's too bad we didn't get our cutie marks in cooking." Sweetie Belle said after reading the title, then glancing back at Applejack, who was now sound asleep. "But at least we know how to make delicious food!"
After everypony left at the end if the day, it was just Applebloom and Applejack. The filly was staring at her older sister, wondering if she would notice her. Applebloom climbed up to her sister's chest, and fell asleep. Of course, 4 hooves on her, AJ woke up to see her sister dreaming peacefully on her fat. Applejack just smiled, as she went back to sleep, back to dreaming of becoming one of the largest ponies Equestria had ever seen.