Mangle walked into the storage room, humming a bit eagerly to herself before the fox stubbed her toe hard on something quite metal! She yelped, only to realize it was an un-used air tank! One covered in a lot of dust at that. She thought to herself, how lucky balloons could be. So big and floaty and carefree.... So she grinned and took the tube from it, wiggling her rear end before shoving the end inside of her rump!

Mangle huffed, snickering to herself as she began to turn the valve on the tank... so far nothing had happened. There was a distinct hissing, but nothing was coming out!! She kept turning it, getting more and more annoyed as she didn't realize her foot was on the hose! A bulge began to grow, as she kept turning the valve wanting more air! Much to the foxes anger, no more air would come out as she then stepped forward to shake the tank!

FwOOOOOSHhhh!!!, the tube went, the large bulge of air flowing down and shoving its way up the foxes back door! She grinned, before she felt her cheeks begin to bloat up! A loud BHWUARRP escaped her muzzle, making her go red as she felt her cheeks, nose and even lips swell up immediately!! The bulge was only shrinking slowly as well, as she tried to turn the valve back.. but to no avail as her eyes, ears and even head soon begin to follow!

The fox groaned as her whole head bloated up more and more, every inch of her cranium bloating and filling with air as she kept burping some of it out of her swollen muzzle! But as much as she tried to crank it down, the bulge was already pushing its way inside and had no sign of stopping anytime soon!

Her entire head soon outgrew her body, and kept going as she wobbled and tried to keep her balance. She blushed, but it was starting to show all over as every inch of her head was straining and creaking!! More and more air flew in, as she just wobbled and huffed... glad no one was around to see! Soon enough, the hose bulge grew and disappeared inside of her body, leaving the vulpines head so huge it was hard to think!

She groaned... her entire head was groaning... feeling ready to burst as she huffed.. was she about to lose her head? No... she felt something gurgling more.... she would groan through her bloated lips... eyes wobbling nervously before...

BOROAARRUWAAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLUUUUUUUUUUUUUHHHHHRRRRPRPPPP!!!!

After that boisterous belch, Mangle was back to her normal size on the floor, groaning and blushing as she looked at the tank... That felt amazing to her, the rush of all of that air going inside of her head... and then releasing it all! She was loving it! But then she noticed the capacity gauge...

"Oooohh!! Ni- Borrrprp!!!! N-ninety percent full? I wonder if Chica wOUURRPP.. would like this..."

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Don't like? Don't comment!!
I really enjoy head inflation stuff, its a weird kink of mine thats just really fun to do!!

And even more fun to write!

Should I post more of it?