Royal Jelly

Royal Jelly by Anon The Writeslut AKA Writeslut The Anon
Note that "BREAK" signifies where the document was originally separated for 4chan.
Done based on request.

Hoofsteps pattered against the hard stone floor of the Canterlot Caverns as Princess Luna and her sister, Princess Celestia trotted around. Bright beams of light shone from their horns as they scanned cavern after cavern, hunting their elusive and strange prey.
>”Careful, sister; we are unsure of the creature’s capabilities. It could be anywhere around here, stalking us, waiting for an opportunity to strike its defenceless target…
Celestia let out a huff, wiping the sweat off her brow.
>”You are out of shape sister. Perhaps you should-”
>”Don’t even mention it Luna. Besides, what makes you sure that this… slime thing that you saw even exists? If anything, it was likely the Smooze playing a trick on you. It’s happened before. And why did I have to come?”
Luna sighed. How many times had she asked now? 11?
>”We know what we saw sister, and what we saw was most certainly not the Smooze.”
BREAK

>”How so?”
Oh, well that was new one. Maybe if she had even told Celestia, she would at least be of some use during this hunt. Luna brought hoof to face as she described what happened:
>”We saw it last night during our routine walk through the courtyard. It was skulking around a drainage grate when we stumbled upon it, before it fled into the drain through the grate. After some research, we discovered no information on the creature, but we did learn that the drains lead to the Caverns. Now we are here.”
Celestia frowned.
>”And I had to come because?”
>”It is an undocumented creature! As we said before, we are unaware of the creature’s capabilities!”
>”Sounds like the Smooze to me.”
>”It could not possibly have been!”
>”And why’s that?”
Luna began to pace back and forth as she spoke.
>”Well, to start with, it seemed… dumb, like it was wild and untamed. The Smooze is comfortable around ponies and is capable of expressing itself to an extent, but this unknown creature seemed to act on bare instinct! Also, it was purple and smelled of grapes.”
BREAK

Princess Celestia said nothing.
And then she said something.
>”Ah. I get it now.”
Princess Luna raised an eyebrow, not understanding what her sister meant.
>”Pardon?”
>”This is just one great big prank on me isn’t it.”
>”Tis’ a lie! We truly-”
Princess Luna closed her mouth and eyes, and breathed in deeply from her nose…
>”Grape…”
>”Stop it Luna, you’re not fooling anypony anymore.”
>”Sister! The creature is upon us and we are cornered! Ready thyself!”
>”Joke’s over Luna. I’m going to bed.”
And with that, Princess Celestia turned and strode back the way the two had come. Princess Luna desperately tried to bring her back.
>”Sister! Smell with thine own nose! The creature has been following us and you must not return!”
Celestia paused and sniffed the air, before shrugging.
>”What do you know, It really does smell like grapes! And maybe all those sandwiches that you just summoned behind us will make for a decent snack!”
Celestia resumed her trot, off into the darkness and out of sight, while Luna covered her eyes…
BREAK

Ten seconds later, Celestia noped right out of there, as the hulking ooze gave chase after the fleeing alicorn.
>*High pitched screaming*
>”Fear not! I shall protect you while you ready yourself!”
Princess Celestia took cover behind a nearby boulder while Luna stood firm against the attacker.
>”A spell of incineration should take care of you!”
The ooze burbled curiously as Luna began charging her horn, as if it was watching her…
>”Take this!”
>*Laser noises*
And so the slime took it. Well, in fact, considering that the blob simply opened what could possibly be called a mouth and inhaled the fiery blast. It made a satisfied sound while Luna stood dumbfounded.
>*Blorp*
>”Impossible, that beam should have annihilated any lesser being! And it simply eats it?”
Suddenly, a shriek rang out.
>”Aieee! Luna, help! It’s got me!”
BREAK

Unknown to the distracted midnight alicorn, a large chunk of the slime had broken off and slid behind her, making a beeline for the cowering sun princess while her protector was occupied. Luna’s head whipped around to reveal-
>”WHAT!?!”
Celestia lay on her back, being assaulted by the slime. And when I say assaulted, I mean with belly tickles. The princess squealed wildly, barely able to talk or breath as the slime rubbed all over her.
>”Hah! Ahahaha! Stoppit! Noooo!” L-Haha! L-Luna, behind-Heehee!-You!”
Celestia’s warning came too late, as her sister could not react in time before the slime had already flipped her on her back and began rubbing its gooey form all over her sensitive tummy.
>”Eeeeeeeeeeeeeeeee! Nooooo!”
And so the rulers of Equestria were tickled sore for about five minutes straight.
BREAK

A little later...
The purple ooze  burbled, the second part of its plan would begin soon. Meanwhile, Celestia can take no more, and opens her mouth to shout with the last of her breath:
>”LunaHaHa! I Cahahahan’t take it anymore! We have to-GLOOMP!”
>”Celestia? Whahahat is wro-MPH!”
Once the princesses mouths were wide open, the slime began forcing its way down their gullets and filling their stomachs. Once it had shoved its entire form inside the stuffed bellies did it seemingly settle. The two princesses gasped for breath, desperate after the ticklish torture.
>”Haah, Haah… I-Is it over?”
>”Not quite sister. It appears to have taken up residence in our stomachs. We must hurry to the doctors to have it removed.
Celestia freaked out hearing this, and attempted to teleport…
>”Aaaahn!”
Celestias stomach began to slowly billow out...
>”No you fool! It is a magic eater! Calm thyself or we will calm you ourselves!”
Celestia didn’t calm down, Luna readied a calming spell…
And her magic was promptly eaten and used to embiggen the slime.
>”Buck.”
BREAK

The two Princesses gasped and grabbed at their swelling forms, their stomachs billowing out while the rest of them began to fatten up with slime. Celestia, feeling uncomfortable, flopped onto her back while Luna chose to remain standing. Both began to wiggle themselves in an attempt to escape.
>*Woob woob*
>”It’s no use! And it grows bigger with every passing moment!”
Heavier and heavier the mares grew, flanks and bellies plumping up, jiggling with every movement. However, one of the two found the sensation desireable…
>”Mmmmmm…”
Princess Celestia pawed at her massive tummy, moaning as her sensitive skin wobbled and gurgled with every touch. Her huge rump felt so plush and squeezable, yet she could not touch it…
So she settled for making herself bigger
>”Ah, yes. The swelling has appeared to have stopped. S-sister? What are you doing?
The solar princesses horn was blazing with the power of the sun, willingly allowing the slime to gorge itself on the magic. Celestia began to bloat at an alarming rate, the goop within her happily sloshing around as she became twice as big as her sister…
BREAK

Luna could not do or say much as she sat with her mouth agape. Celestia’s massive form gurgled and moaned as a lake of pleasure was formed inside her. Her breasts began to take on the impossible task of containing the sweet sludge, beginning to grow large and puffy, leaking rich alicorn milk in small streams. Celestia squealed in pleasure, her hooves too fat and heavy to lift any longer.
>”Sister! You must stop this before you become any bigger!”
Celestia finally complied, her horn losing its light. Mostly because she couldn’t focus anymore.
>”Mmmmm, ah! Luna, this is amazing! You have to try it!”
>”You are so irresponsible Celestia! Who is to raise the sun tomorrow?”
>”I don’t care, just… Just… Oh please squeeze me! M-my breasts…”
BREAK

Luna looked to the jumbo-beachball sized milkbags, spurting gallons and gallons of thick cream all over the cavern floor from massive, puffy nipples, before frowning and shaking her head.
>”We are not going to indulge you, Celestia. We are experiencing a serious problem right now, and even if we would, we couldn’t. We cannot move.”
Celestia pouted, a little upset that she wouldn’t be able to return to pure bliss, before a devious smirk crept over her face.
>”We’re not going anywhere for a while Luna. Might as well pass the time somehow…”
Luna sighed.
>”We suppose… Still, we must be able reach your teats if we are to grope you.”
>”Oh c’mon! Just use your magic! Pweeeeeeeeese?”
Celestia snickered. Luna hated that tone of voice, she would do anything to just shut the pony that used it up, often forgetting important things like…
>”Cease that at once! We will use our magic! Just… Stop!”
Luna’s horn lit up with a simple telekinetic spell…
>*Gurgle…*
Celestia chuckled while Luna looked shocked at her belly, rapidly billowing out of control…
>”Gotcha.”
>”We hate you.”
END