Kitty and Luci are both a little nervous around balloons. One day, while exercising at the lab's gym, they decide to try a little contest, in which they each blow a large lightbulb-shaped balloon on which the other is riding - until it bursts. This provides considerable motivation to win the blowing contest, notwithstanding the fact that balloons are not always consistent as to when they pop from overinflation - as poor Kitty is about to discover.

Kitty and Luci are both a little nervous around balloons. One day, while exercising at the lab's gym, they decide to try a little contest, in which they each blow a large lightbulb-shaped balloon on which the other is riding - until it bursts. This provides considerable motivation to win the blowing contest, notwithstanding the fact that balloons are not always consistent as to when they pop from overinflation - as poor Kitty is about to discover.