The mysterious inventor's magnum opus wasn't originally built to get into situations like this...but considering how her first time reaching such massive size went...and how much euphoria it brought her, ideas for future experiments began to flow...and one in particular came to mind~

Another test began, one in a towering, tall room, with a variety of platforms and ledges, Era almost immediately understood what this was. An agility test, a means of making sure her manueverability was at top shape. Considering how normally she would be able to blitz through it like a 3D platforming speedrun, this was hardly an issue...other than just how far up some of the platforms were...the solution, and the TRUE purpose of the test, would shine through in just a few moments~

Hoses sprang from the floor, inserting them into any intake zones they could on the 'bot, beginning to pump her up with air, she almost immediately froze up, being caught off guard, and letting out a timid squeak as her body swelled up, her flat chest ballooning out, her arms and legs blowing up, then her hands, then her hooves...~

...and then her tail, and then even her FACE! Her eyes still bulged out, but they were comparatively rather small, rather, her hair-tendrils and cheeks became HUGE, engulfing every other part of her face besides her eyes in mere moments!~ By the time she had reached her intended size, she was easily the size of a parade float, and it was a miracle her dress had stayed on! She was then told to complete the test, much to her confusion...she couldn't do something like that, like THIS!

...Could she...?~

Oh she absolutely COULD! Thanks to the springy, stretchy inner workings of her body, it was designed to function at any size! Despite how goofy and bloated she looked, she could manuever herself with ease like this...in fact it made it easier, as all the air had drastically reduced her weight, allowing her to make higher jumps and float down with ease! She was embarassed to say the least...but on the inside?~ She was LOVING it, the tightness, the lightness, the surge of stimulation every time he bumped into a wall, just knowing she was still strong and capable even when looking like a severely overinflated lawn decoration~

By the time the test was complete, her creator was pleasantly surprised when she didn't even ask about getting deflated, instead bouncing off back to her section of the labs after a slightly muffled, deepened "thank you, sir~"
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Goodness I love Era so damn much xwx
I wanted to draw something more on the goofy, cartoony side for ubers, focusing more on the shape and the cheeks, with the eyes still being present~

Era belongs to me :3