>accidentally step into a nest of nectar vines one day while walking to Zecora's hut
>have to waddle the rest of the way to try and fix the problem
Hmm... ah, my friend, I see your plight!
You want a potion which can set things right.
You stumbled into the wrong patch of grass,
And now you want its effects to pass!
Luckily, I have the potion you need,
But how well it works is not guaranteed...
The fluid in your stomach has yet to digest,
So drinking this will remove it as you rest.
My previous attempts have served rather well,
But if its effects are consistent, I cannot tell.
Drink but one sip, sleep for the night and see,
And if something goes wrong, then come back to me!
>follow Zecora's instructions to the best of your memory
>go to sleep
>wake up feeling as bloated as ever
>have a hard time moving as you traverse Everfree
>the pressure in your gut seems to increase the more you walk...
>arrive at Zecora's door with your belly just inches above the ground
>she walks around and examines your side, giving your flank an occasional poke to feel out the swelling
Oh, my, it appears your problem is not getting better...
Did you follow my instructions to the letter?
>give her a nod, but then you realize you might have downed the whole bottle all at once...
>Zecora shakes her head solemnly
I prescribed you to consume only a fraction,
Because drinking the whole potion has a bad reaction!
>You want to say that she gave no such warning, but you feel you're in no position to argue semantics
 
The potion was meant to turn the nectar to air,
Then move out of your system without a care.
But because you apparently lost your mind,
The effects have doubled, or tripled, in kind!
Your will continue to grow until the liquid is gone,
Then hopefully the gas will slowly pass on.
You were careless, indeed, so now we must wait
And see if time will improve your state.
>unfortunately, your condition doesn't improve
>in fact, it only becomes more rapid
>none of your hooves are able to touch the ground by now, and must rest on your ever expanding belly
>soon enough your body covers a large radius of Zecora's floor
>You can even feel your back staring to bulge out and balloon, your entire figure steadily growing more spherical
>You can tell from the height of the room you're just inches away from scraping her ceiling
I am sorry to say, but if you expand any more,
I might have to push you out the door!
You are getting rounder at too fast a pace,
And my poor home has only has so much space!
>she moves to your side and gives you a heavy push
>her hooves sink ever so slightly into your swollen side while she rolls you to the door
>by now your cheeks were so swollen and pushed against the rest of your body you could barely open your lips
>by now, your limbs were little more than useless stubs which could barely wriggle from being so sunken in their joints
>even your neck had disappeared into your body, and your head was becoming little more than an indentation in the ball your figure had progressed into 
>the most you could respond with was a muffled moan from your throat, an odd mixture of fear, embarrassment, and delight welling in you 
>you have no choice but to roll with her motions
>it takes her a moment because of how wide you had grown
>after a few good shoves and a few cracks from warping the doorsill, the widest point of your circumference finally cleared through the exit
>you could hear Zecora releasing a few last grunts of effort, panting as she at last rolls you to the front of her hut
>she walks over to your front and looks down to meet your eyes, wiping the sweat from her brow as she gives a light-hearted chuckle
I hope you don’t mind if I say,
But I take it you enjoy being this way?
>try to show her a shy smile, but your mouth is so buried in your neck that she can only see your mouth’s corners
>a gurgle from deep inside your expanded, cavernous stomach echoes
>Zecora’s ears perk up at the sound
>she gives a small, mischievous smile and strokes your rounded hide
>you feel yourself practically melt in her touch, her hooves tingling against the skin and sending a shock of pleasure through every inch
>you can’t help but release a small whimper and clench your eyes shut as she maintains her caresses, seeming to pick up on your positive reaction
That sound that you made will serve you well,
For it means that your body will no longer swell!
I will watch over you for the moment still,
Until you are able to move at your will.
>you would nod to agree if you could
>not like you had any other choice
 
>spend the greater part of the day camped outside Zecora’s hut
>gradually feel yourself shrinking back to your normal size, but the deflation is far too slow to be visibly noticeable
>think of what would happen if someone decided to stop by to visit the zebra
>they would see you as nothing more than a fuzzy balloon decorating her lawn
>groan at the thought of being mocked or stared at, unable to answer any questions because your lips still couldn’t move
>just according to your fears, you see a few ponies coming out of the forest clearing and heading toward the yard
>the Cutie Mark Crusaders and Twilight
>you could clearly make out the stunned look on their faces, eyes wide and mouths agape
>you turn your eyes away from them futilely, but you could still feel their glances boring through you
>finally you hear Apple Bloom speak up
"What in the hay happened to you, sir?"
>sound out a few helpless muffles, ashamed that you can’t even speak for yourself in front of these fillies
>Twilight manages to speak up
"Now, now! That’s not polite. Clearly, he just had a mishap with a little magic, right?"
>at last you could hear Zecora opening the door to greet her company
"Ah, hello, little ponies! Don’t mind my guest. He just needs some time to rest. In a few more hours he’ll at last be free. But in the meantime, he’s in my company."
>immediately the fillies start exploring your body, giggling as they play with and poke you despite your vocal protests
 
>Scootaloo seems especially in awe as she climbs on top of you, not caring about your surprised yelps as her hooves sink into you
>she bounces on you a few times like a trampoline
>you can only mutter a few hums as fear turns into pleasure, rolling your eyes up at what feels like a back massage
“Wow, this is so cool! You’re like a living balance ball you see at the circus!”
>Sweetie Belle pipes up cheerfully
“Ooh! Ooh! Maybe balancing is your special talent! You can practice on him that way!”
>Zecora and Twilight try to discourage them, but to no use
>before long you start to feel Sweetie Belle and Apple Bloom push against you
>the forest ahead of you starts rotating in front of your eyes as you roll along, almost making you dizzy the faster they go
>Scootaloo makes a few stumbling steps before she starts walking, keeping up with the pace as her four little hooves pitter across the entire width of your body
“I think I got this, girls! Cutie Mark Crusader Circus Act is a go!”
>Zecora and Twilight seem less amused, though when you rolled in front of them you were sure you could see them trying to hold back a laugh
“Be careful with him! We don’t know how fragile he is.”
“Do not fret, dear Twilight. He’s rather sturdy! The most they can do is get him dirty. He grew much larger and did not burst; for him, he’s already seen the worst!”
>still a little miffed that you're nothing more than a toy for these fillies and they aren’t doing much to stop them
>but you decide to play along and be the best circus prop you can
 
>eventually get over your nausea from being spun around so much
>the fillies come to a pause and Scootaloo jumps off
>she looks down to her still-blank flank, looking down and sighing in disappointment
“Well, guess balancing isn’t my talent...”
>her expression brightens up as she looks to you
“But I still had fun and all! Thanks for putting up with us. Next time we need a giant ball for something, we’ll be sure to ask you!”
>not sure if you should take it as a compliment or not, but you suppose it was a kind word
>still a little uneasy at the idea of being a free inflatable for other ponies to use
>Zecora interjects as she once again strokes her hoof on your flank, even going so far as to pat it like an object that she’s proud of
>each pat causes out a hollow rubber sound to escape as her hoof bounces off of it
>it looks like that potion had more of a side-effect than you first realized
“Well, it seems our friend is now able to expand at any size and remain stable. For now, let him shrink down, and then—“
>Zecora pauses to give you a wide, even sly smirk
“He’ll be free to expand once again!”
>you don’t know how to take the thought of being a plaything for the ponies around you
>but once the initial shame passes, you start to reconsider the idea
>think about growing larger as ponies fill you with air, water, or anything that may suit their fancy
>getting plumper and rounder, filling up more space until you break walls or shadow over everything nearby
>on second thought, you could get used to this