@pwingbrony  
Loved this story

@pwingbrony  

Bless you

“HeeHee!This is a nice, steep hill to roll down!”
 
Pinkie sat her fat flanks on the grass and patted her belly playfully. The huge, gelatinous paunch bouncing heavily for several seconds as she did so. She had grown pretty huge in the past few months. Becoming as big and heavy as three Big Macintoshes put together. Except with pure fat, instead of muscle. Her appetite had caught up to her severely, all of a sudden and even got worse as her belly became greedier than ever. But, she didn’t seem to mind for the most part, doors and her old hiding places being the only exceptions. She just found ways to adapt and continue having fun at her new size. She giggle and snorted with glee as she got ready to do something she always wanted to do, but was never round enough to do so.
 
“Time to put my rolly pollyness to the test! Look out, Ponyville! Here comes Pinkie Pie!”
 
She rolls onto her side, whole body spilling out on the grass. Then, she grunts and rocks herself until she starts spinning down the hill. Momentum is picking up as she starts spinning faster and faster.
 
“WEEEEEEEEEEEEEEEEEEE~~”
 
Meanwhile, at the bottom of the ridiculously steep and conspicuous hill, was Twilight Sparkle. She was currently prone, facing away from the strange and rather excessive landmark. Why was it such a steep hill? Nopony really questioned it. It was just there. Enjoying the radiance of the afternoon sun, she leisurely read one of the many books that she had read a good seven times already.
 
“Oh, Sherclop. Are you ever wrong?…Huh? What’s that noise?”
 
“-EEEEEEEEEEEEEEEEEEEEEEEEE!!!”
 
Twilight’s ears swiveled, and she felt the ground rumble under her hooves. She was about to get up and turn towards the source, but it was too late. The enormous, pink boulder of dough sped right over her like a high powered steam roller.
 
SQUIIIISH!
 
The rolling continued for a good fifteen seconds, until Pinkie’s wide belly eventually stuck out on the ground enough to act as a functional brake.
 
“EEHEEHEEHEE!! THAT WAS AMAZING!…Oh! Hey, Twilight! Wasn’t that fun?”
 
“Groooaaan…P…Pinkie…”
 
“Yeah, Twilight?”
 
Twilight’s pained, flat face shifted into an angry sneer. She was completely stuck to her overly obese friend. Practically wrapped around her barrel.
 
“I…I think you~~Urrgh~~need to get your weight under control…”, her tone was strained ~~ as if she were trying really hard not to scream.
 
“Oh, really? But, I told you Twi! I really don’t mind being so big. It’s actually kinda fun!…Besides…”, she shuddered a bit - causing herself to quiver lightly, “There’s no way I’m dieting.”
 
“Grrrr…Alright then…Pinkie Pie…I will figure out how to make you diet!”
 
“H-Huh?”
 
“Yes, Pinkie. You were already enough trouble before, but now your big trouble! The other day, you broke my favorite step ladder in the library! And, now you squish me during my afternoon reading! Enough is enough!”, she began charging her horn.
 
“O-Oh…B-But…”
 
Then Pinkie got an idea. A cruel, but potentially fun and effective idea to get out of this situation. She never realized how stretchy other ponies could be. She thought she was the only one like that. But, she smirked slyly as she rolled back onto her butt and put a forehoof on Twilight’s flattened face.
 
“H-Huh? What the-mmmmph?!”
 
Pinkie ripped Twilight off the front of her, then whipped her around the back of her body. She grabbed Twilight’s tail while still holding her face. She sucked in her gut as much as she could, and began stretching Twilight even more around her countenance. Fortunately for her, she was able to join the tail and head, quickly tying them into a tight knot. Twilight’s horn fizzled.
 
“MMMMRRRPH!!! PPPRRRRRKKRRRR!!!”
 
Pinkie was beginning to yearn for breath. She exhaled with a heavy sigh, and her humongous stomach surged forward. Twilight stretch with an audible creak as her body tried to stay wrapped around such enormity, like a belt three times too small. Pinkie’s gut was hugged very tightly by her friend, belly swallowing the alicorn like a lard sandwich. But, she held, miraculously. Pinkie wiped her sweaty brow.
 
“PHEW! HA! Try to put me on a diet now, missy!”
 
“Uuurrrrrgh….”, the groaning, muffled voice of defeat reverberated from Pinkie’s navel area. As well as the sound of feebly stretching skin.
 
“GRROOOWWWL, Ah! All this fun has made me hungry, now! Time for third lunch, Twilight! Hopefully, my tummy doesn’t break free! HEEHEE!”
 
Pinkie hummed contently as she pronked away to the nearest eating establishment, causing small quakes along the way.