Gathering interest in a story idea

I have been thinking of doing a story for a little while now and I recently got an interesting idea for an inflation story. So I want to get some feedback.

The plot follows a woman who meets a strange user on Xbox Live who challenges her to beat him in any game of her choosing. Every time she loses to him , he slowly makes a fantasy of hers real. Which (lucky for us) happens to be inflation.

The story takes place over the course of an entire weekend (and many loses) so she will slowly get pretty big. Now the story will also involve how she makes changes to her everyday life when she gets bigger.

So what do you think?