*gguurrggl*
Rrainbow Dash, the blue pony was flying through the air, her stomach was empty and she was getting hungry. Her flying practice took longer than expected. She had lost time doing her aerial maneuvers.
*wwhoosh*
She flew over to the nearby stables. As she was trying to scout for some nearby hay or apples she could buy.
*dang, I don't have any money* she thought .
Then she saw a potential solution, Fluttershy was sitting in her home. Rainbow Dash flew over.
*knock knock*
She hit the wooden door with a hoof. It opened moments after, the yellow horse stood in the doorway. Fluttershy was rather plump, her belly hung low and her ass was the largest around. Her ass alone barely fit through her own door.
"Hello Rainbow Dash, how are you?" She greeted her friend.
"Hungry, got anything to eat?" Rainbow dash said rather forward.
*ggrrrooian*
The blue pony's stomach gurgled loud enough for Fluttershy to hear it.
"OH my, I'm afraid I dont."
"Well, then can I eat you?" Rainbow Dash asked.
The hungry pony licked her lips hungrily. Her friend sure looked tasty, especially with all that ass.
*I wonder what she tastes like?* she thought.
"What!? Of course not, you can't mmgghhhmmm" she tried to deny Rainbow Dash, but the hungry pony had already made up her mind.
"Ommhhh" Rainbow Dash wrapped her mouth around Fluttershy's head.
*mmhmmm, she tastes like butterscotch.* though Rainbow Dash.
"Heeyy, if you want food that badly, I can get you something!" Fluttershy said.
The yellow pony could feel her head wrapped in the maw. It was hot and humid. Her hair started to get drenched as Rainbow Dash's tongue danced around her face.
"P-pl-please Rainbow, let me out." Fluttershy said.
*gulp*
Fluttershy was pulled in further. Rainbow Dash's strong throat muscles pulled her in and down. The front feet of the yellow pony were lifted of the ground as her neck was stuffed into the hungry maw of the blue pony.
*gulp*
Another hard tug and Fluttershy's front hooves and chest were sucked in.
"Do you want apples, I can get you apples!?" Fluttershy said anxiously.
The yellow pony's head was getting squeezed into the tight gullet. Her face was outline by Rainbow's throat. It was a face of horror as Fluttershy attempted to scream.
"HEELP She's eating me!!!" Fluttershy yelled.
*gulp*
Another long swallow this one a little harder for Rainbow dash as it was Fluttershy's large belly that started to fill her mouth.
"Mhhmmm" she moaned with her cheeks being forced out even more.
The blue pony enjoyed the feeling. Her stomach began to grow as Fluttershy started to fill it. The yellow pony could now see the bubbling acid, it was dark and musky. The smell of the boiling liquid stung her nostrils.
"Mmmm, help!"
Fluttershy felt herself getting forced further and further into the pony's stomach. She was being slowly swallowed. Rainbow Dash could feel the weight of her gut increasing as the yellow pony started to press out on the stomach walls.
As her head was pushed into the acid it began to make her skin tingle.
*gulp gulp*
More labored swallows as Rainbow Dash tried to stuff the wide hips and juicy butt into her mouth. It was no use.
"Eeep" Fluttershy screeched feeling two hooves firmly placed into her backside.
The coldness of the Rainbow's hooves sent shivers down her body. The large mound of flesh rolling over the hooves as it was pressed.
*GGUUULLP*
Rainbow Dash shoved the large ass into her mouth, her cheeks and mouth stretched further than before. She stumbled into Fluttershy's house and shut the door behind her as the yellow legs kicked out from her mouth.
Fluttershy was now shoved into the boiling gut. Her body starting to follow.
"Aaahhh, no dooaaannntt" she moaned.
A slimy tongue had been pressed against the fat pussy. Rainbow Dash had found the jackpot for flavor. Fluttershy's honey pot, her vagina, it secreted a lovely fluid that coated her tongue.
"Mmhmm, thssshhh isshhh delissshus" she mumbled at the delicate taste.
"Oohhh, sttoooppp" Fluttershy's mind wanted the onslaught to stop, but her body didn't.
The dripping of vaginal fluid turned into a trickle, then it was oozing out. It was creamy and warm against Rainbow's tongue, a mixture of sweet and salty.
*glug*
She swallowed the cream without gulping anymore of Fluttershy, she wanted to enjoy as much as Fluttershy's cum as possible. The thicker fluid leaked down the throat and eventually landed on Fluttershy's face. She squirmed as her own cum stuck to her face.
Finally, after guzzling down a large amount of the sweet nectar Fluttershy's pussy leaked, Rainbow dash shoved her tongue deep into the pot.
"Aaahhhhh" Fluttershy couldn't help but moan.
A flood of the juices sprayed out of the yellow snatch and down Rainbow's throat.
*glug gulp*
She swallowed the large booty and the creamy cum. Fluttershy's tail and legs were easily pulled in as well. Like noodles, the pale legs disappeared down Rainbow's gullet and joined Fluttershy in the gurgling belly.
"Mhhmm, you were delicious, like a cream pie." Rainbow smirked at her own pun.
"Let me out!" Fluttershy attempted to kick, but the tight confines trapped her in a curled up position.
"Yyaaaawwwnnn, I think it's time for a nap. You don't mind if I use your bed do you flutter?" Rainbow asked nonchalantly as she started to trot over to the bedroom.
Her massive gut swayed beneath her as it sloshed its contents. Fluttershy was coated with the sticky acid as she was flung around. The acid burned her skin, quickly making the pale flesh turn red as some of her hair fell off.
"Aaagghhh, it BURRNNNSS!" She screamed at the pain.
"Huff" Rainbow sighed as she huffed her overloaded gut onto the comfy bed.
She began to rub her belly with her hooves, pressing her prey.
"You look so cute in my belly."
"Quit that, let me OUT!"
As Fluttershy yelled and squirmed, Rainbow was quickly falling asleep. Having such a stuffed tummy sure made her sleepy.
"Zzzz"
"No, don't go to sleep, spit me out."
*kicks*
Fluttershy was answered by a series of snores. The fleshy walls excreted more acid until she was almost submerged in it. The acid ate away at her, the only consolation was that it no longer hurt because it melted away all her feeling.
*sobs*
"I don't want to be food, I don't want to be poop. Please rainbow, wake up and let me out." She cried.
*glloorrp*
The sounds of being digested were loud. They were the last thing she heard before succumbing to the belly.
 Rainbow woke up with only a small round belly hanging down.
*ppbbbrrtttt*
The pressure in her bowels was immense and she hurried off to find Fluttershy's bathroom.
"Yeah yeah, hold your horses, I know you want out."
The blue pony sat down on the large porcelain throne. Her meaty cheeks spread wide, letting her smelly, purplish asshole hover over the bowl.
*gurgle*
The first glob of brown fecal matter was ejected.
*splat*
The large chunk splashed in the bowl. It was the cap that held the rest of her now gooey brown friend. The slime like turds began to coil out, smoothly it reached down into the dirty water.
"Oohhh that feels nice." She moaned.
The shit crackled out of her hole. The sphincter stretching around the soft log. Only a few small specs of bones and some strands of yellow hair would portray that the manure was once Fluttershy.
As the sloppy horse apples started to get lumpier, Rainbow had to start pushing more.
"Hhrrrnnngg" she grunted.
*plop*
*clink clink*
*bbbrrfffftrrr*
*pllaaappp*
*clink clink*
In the next couple pounds of poop, Fluttershy's horseshoes were embedded and sounded as they hit the walls of the toilet.
"Ooff, you were doing so well" Rainbow complained to her feces.
The pile of manure did nothing but steam as it sat stinking up the room. Rainbow had come across a large round object that blocked her colon. A white skull was trapped at the exit.
"Hhrrrnnnggg" she grunted as she pushed on her stomach.
*pop*
*splat*
The skull shot out and embedded itself into the brown muck.
"There we go, just gotta get the rest."
Rainbow's stomach was finally emptying, the last bits were still coming out, but they were more like water than waste.
"Ahhh, that was good." Rainbow got up.
She didn't even bother to wipe her ass. Nor did she even flush. Rainbow looked back at the heaping, steamy, pile of manure that filled the toilet bowl. There a skull with shit pouring out of the eye sockets, the mane was a mess as most of it was in tatters.
"Mmwwwaaa, you were delicious, but now you stink. Bye Fluttershy" Rainbow blew her bowel movement a kiss before turning around and leaving.
She had gained a lot of fat in her ass and was now bigger than Fluttershy was. She had to squeeze through the door way. Letting out airy farts as specs of Fluttershy speckled her purple anus.
*ffftttt*
*tttffrrrttt*
Her large cheeks closed around the hole and jiggled with each step the plump Rainbow Dash took.