A young woman

A young woman just brought the Helium Kimono, not taking note of its features. When she got home to the top-most appartment, she undress herself and put on the kimono. By going in front of a mirror, she notice how her curves are shown. After a short while, she start hearing a hissing sound. By looking around, she try to find what cause it. It's actually coming from her. She's getting filled with Helium. When she start walking around, she notice that she's light on her feet and have some bounciness on her feet. Because she was starting to sweat and feel some pressure, she go open a windows to bring some outside air in. She start to wonder how much will she fill up, when will it end among other things.