Swell Times At College

"Don't just stand there, stupid boy..." Kathryn whispered at you with a grin, as she opened up her locker and pulled out a huge yellow air canister with a thick hose attached to it and held it up high, near her face...
"Get that cam of yours rolling! I want this whole procedure caught on tape, we'll make millions out of this one... " She continued, the hose closer to her mouth as she spoke "The College parade will be a lot more enriched and different this year, i'll make it really big this time, haha! Now, let's get this thing going, here goes nothing..." Kathryn spoke her last words as saw the red light on the camera and shoved the edge of the thick hose straight into her mouth, stretching it quite a lot to accommodate it firmly between her rubber lips, before she shook both her hands in mid air in a "WTF am i doing..." gesture, and hastily cranked the tank's valve to full blasting mode...
The hour was early, all students were in their classes and the building corridors were empty and quiet, resulting in the hissing sounds emerging from the powerful air blast of the tank to echo loudly around Kathryn and across the corridor, as her facial expression indicating immediate distress from the air pressure that had just hit her mouth, sending her cheeks to bloat outwards like softballs stuffed inside of her mouth, as the air forced its way inside of her thin body, moving down her throat in a fast speed. 
The results were visible in seconds, and you kept rolling the scene in awe, as Kathryn's bust and thighs started expanding outwards, like a real life blow doll was being over inflated against her will, resulting in filling the corridor not only with increasing hissing sounds but with rubbery stretchy sounds too, coming from her increasingly stretchy shirt and jeans, and of course her own rubbery skin that kept rubbing against them at its inflating outburst...
In a matter of seconds yet, her boobs had inflated up with air to the size of large beach balls, stretching her white shirt to its limits, forming a vast cleavage of ballooning tit flesh on the front of her, as her thighs joined in on the same fate below, as they now resembled bean bag chairs, tightly stuffed inside of a miraculously stretchy denim pants, and her hands kept flapping helplessly to her sides as she kept expanding and inflating to the size and shape of the most over inflated blow up doll even the porn fantasy world had ever seen at that point...
The spectacle was too much for you to handle, as kept recording the scene, trembling at the climaxing boner inside of your pants as you kept watching your friend Kathryn, turning herself into an hourglass blimp of inflated sexiness with each passing second. Her facial expression and the loud moans and muffled screams that tried to escape her mouth, made it obvious that she was not having the best of her times, as her eyes were wide in distress and it seemed like she was already having regret that stupid decision, as she started pointing the air tank in an effort to appeal to your help, as almost all of her movements were quite restricted at the moment, not being able to even bend her own elbows in a few seconds from the extreme pressure that was inflating up every part of her rubbery body...
And the extreme hourglass shape Kathryn was sporting, soon begun to loose it's shape as her entire mid section and all her limbs begun making way and stretching from the inside, being filled with extreme amount of pressurized air, as she already was becoming spherically shaped and blimpy more and more. Her belly now resembled like she had just swallowed a weather balloon and her arms and legs were four feet thick each, as all her curves were steadily absorbed into her spherical balloon body more and more, the hose still siphoning the air inside of poor Kathryn's rubbery body, with you just standing there in awe, watching the sexy scene unfold without the slightest of intentions to pull the hose out of her over stretched mouth or even turn the air flow to a lower level, you just couldn't cope with the fact that you wanted to see Kathryn become the world's biggest blimp that day...
And that was not far from the truth, as her gigantic by now, more than 15 feet wide ballooned body, was applying its pressure on the corridors walls and windows, adding loud cracking noise to the rubbery and hissing noises that already existed for some time now, along with Kathryn's loud pleading moans of course...
"Oh oh... i 'd better get going...." you thought to yourself, as you kept rolling the camera, taking generous steps backwards on the fear of the explosive outcome of the situation. You knew you would be in a load of trouble if Kathryn could ever get her hands on you after this, as she almost pierced you with a glance full of anger from her wide eyes on your way away from her, but you just grinned and kept walking...
After all, you knew that something like that was quite impossible given her irreversible situation...