Disclaimer: English is not my first, so there can be mistakes, I apologize for that beforehand.

After a little break I decided to return with a set of Halloween stories. Or, at least, related to it. This particular story is more about TF without any smut like most of my work. Since the idea is based on the concept of BalloonBabes by ThatGuyImortal https://www.deviantart.com/thatguyimortal
You can read about this here https://www.deviantart.com/thatguyi.....abes-925786497
And the pic is used with permission from https://www.deviantart.com/thatguyi.....abes-925786497
Also the story is related to the same universe as this story https://www.furaffinity.net/view/46146625/

Description: one day Mark decided to buy a suit before Hallooween, but with one little mistake in the shop, he got more holidays and fun that he could possibly imagine

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It was a month before Halloween, but Mark didn't plan to buy his costume in the last moment. He missed the party, where, it was told, some latex succubus showed everyone one hell of the fun. No, this time tall handsome brunet wanted to kick everyone asses with expensive costume, made specially for him in "Second Skin Fun" shop.
He already visited it a few months ago, the saleswoman took all necessary sizes of his body. So it will be the best costume of Venom in the city. He checked videos of other people were wearing something like that from this company and it looked outstanding!
So getting notification about the arrival today, Mark rushed into the shop right after the job to get the costume.
The salesgirl turned out the same one, which was good. This time she dressed as Mystique. And damn, that suit looked hot. The blue skin could be mistaken with realistic body paint, yellow eyes glowed incredibly natural. And these ginger hair definitely dyed. Why this girl is not visiting any cosplay events?..
- Mark Miller here, - the young man said confidently, fixing the red tie of his stylish grey office suit.
- Oh, nice to see you, sir, - Mystique smiled, parting her dark blue lips. - You came along quickly.
- Mostly I prefer not to rush things, but this case... is a special one.
Mark always was good with girls and even tried to flirt with the salesgirl briefly before. But looked like she had a boyfriend and got used to this around such job. Oh, well...
- Of course! We got the big shipment today, so it will take a minute to find your suit. And our department didn't pack a few costumes, but yours are totally alright. Now... where are you...
Meanwhile Mark was walking around shelves with costumes. And near the salesgirl placed boxes and unpacked costumes.
- Oh, I see the black, this one look like mine...
- Probably, sir, but I am not sure... - Mystique fully got herself into the computer.
So Mark took the folded rubber into his hands. But turned out, the black color belonged to the package. And beneath it under the zipper laid a rubber chest piece of some female character. Not the costume itself.
- Oh, my bad, this one is a part of something...
- Yeah, I finally found your Venom costume. I already removed it to the storage room. Yeah... realistic mask... quick access to crotch area... I will bring it right away now, sir... sir?
The girl completely missed the part, where the chest piece just jumped out of package right on customer like this thing was alive!
- F-fuck... - it wrapped around his torso and squeezed it so damn hard in a matter of second, that all oxygen got pushed out and cut off any scream.
The chest piece with naked belly and painted black tank top with incredibly lewd cleavage felt uncomfortable, but with that natural to Mark's skin...
Oh damn! Skin! That thing melted his office jacket, white shirt and tie.
- My gawd... - Mystique's eyes opened wide and she ran to the trapped man.
But didn't do a thing...
- This should not be here! A wrong package! This is a testing model! Just hold in there, I will make a few calls.
Immediately metal blocking doors closed the exit and shop windows before the girl ran off with the phone, leaving panicking and suffocating Mark alone with no ability to breath...
Until he realized, that not needed to breath at all. But without oxygen he could not speak or even whimper.
HHHHHHHHHHHHHHHHHHHHHHHHSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS!
He heard the sound around the right shoulder, covered by black tribal tattoo. With more pressure, that spread to the arm, the suit started to conquer the rest of the body, pushing out new rubber skin with matching color. The left arm. Then down to crotch...
While new painted short jeans, that didn't hide the butt and black panties were seen a bit through more revealed zipper part, covered office pants, melting them beneath in the process, Mark barely could stand. It was intense, but unbearably pleasurable. Like the whole area got squeezed into one small blob of pleasure and one touch to it would make the man literally explode. But he squeezed his now flat crotch anyway, rolling eyes from new feelings. But then he lost ability to touch himself that skillfully, once the rubber reached palms, squeezing fingers into less useful, but still flexible mittens. Only thumbs were available, and that forced silent whine from Mark since new hands felt completely useless...
Then new naked female legs followed with high boots, which ended with high heels made from solid piece of rubber, giving a few more inches to man's body.
HHHHHHHHHHHHHHSSSSSSSSSSSSSSSSSSSSSSSSSSSS!
Mark's hands rushed up to his face, desperately trying to stop the spreading of the merciless tight rubber. With creaking of rubber lips got sealed, getting natural darker skin color. And puffed out, craving for more bimbo appearance. In the mirror, the more of the face got possessed by new skin with completely painted features like new brown eyes, even before hair sprout out as a solid piece of rubber, Mark realized that he was turning into rubber version of Revy from Black Lagoon anime. He liked the character, but not to the point of becoming her like this.
But either way, the trapped customer could not stop the process anyway and the last of his skull disappeared from this world under maroon to shoulder length hair, tied into tail in the middle. But actually hair were stiff piece of rubber after all.
About stiffness... Mark still could move, but everything so damn tight, so each step felt like a lifting of highest weight he around around the gym. And still no oxygen needed for some reason. So trying to calm down, the victim of his own impatience tried to find the sales girl, when...
HHHHHHHHHHHHHSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS!
His whole body started to bloat. In all directions. Even bimbo lips, unbelievably sensitive, puffed out more, and small plastic air valve popped out between. Another one on the belly button.
Mark thought, that with more air inside, the pressure will turn immenense! But... actually... with each hissing...
He felt that stiff feeling moving away...
The feeling of float even without actual float overwhelmed his mind...
The whole body became a bit bigger with bloat limbs, but nothing disproportionate. In the mirror Mark watched how his... her... curves ballooned out. Flat chest into two big balloons, matching the painted tank top. Butt and hips inflated, giving curvy hourglass shape to the whole body.
It was done... Mark squeaked with mittens ran around new boobs. The whole costume... no, new body could not be compared in feeling of comfort with nothing else in this world. Painted brown eyes could not move away from the sight in the mirror. The doll turned a but and showed the mirror the balloon butt with bar tag.
Right at this moment, Mystique have returned.
- Well, sir I have good new and bad news... - not even remotely shocked by Mark's new look, she walked close and casually groped balloon girl tits, forcing a loud squeak out of her plugged mouth. - Hhhmmm... well, the good news, that you got already tested model, so there will be no consequences... aside from the fact, that this is permanent. Well, maybe our company will find solution, but... I don't want to give you a false hope.
Despite actually terrible news, Mark... felt totally ok. Yeah... totally! No worries. No actual needs. Hard to say, if it were her thoughts or the state actually fully pacified new... more bimbo mind. With her boobs groped she definitely could think at all, craving for more attention...
Not able to have any actual sex, the doll craved for just a small attention to her body. And that will be more than enough.
- Since you turned out into a Balloon Babe, like we call them, the company will care about you and all relatives. You can have any fate you want, not just being sold to anyone. What I think... if you want... you can stay with me. This is the least I can do for you. And you are definitely look more likeable for me now.
Instead of any nodding or other form of communication, the Mark moved forward with her light body, mittens wrapped around the blue butt of the sales girl, while puffed lips pushed themselves in kiss.
- Mmmhhh... - the girl closed her yellow eyes, embracing new toy-friend, giving attention not only to bimbo lips during sloppy kiss full of squeak and creaks, but another sensitive zone balloon girl's air valve turned out.
The whole body pressed into Mystique, smothering itself into matching form for the most closest encounter. And while the salesgirl played and cuddled with Revy doll's body, airhead mind slowly consumed all remains of old male one. And she realized, how stressful and full of useless things that life was filled...

A few months later.

Mark... or rather Revy like everyone called her now, was sitting in the chair and red the book. She possessed enough strength to hold any book and thumbs had enough dexterity to flip pages. The balloon girl even managed to get along with a game console.
While Rita, the salesgirl, at work or other places, Revy took care about her apartment. Not even being asked about it in the first place. But newly reformed balloon bimbo mind not only accepted all this, but was excited to do anything to make her new roommate happy. Having no cares, former Mark felt happy. Especially knowing, that Rita will never get bored with her.
So if there will be a cure someday, the airhead planned to feel herself happy nonetheless.