Derpy is ditzy, clumsy, and overall fairly, well, derpy. So in an encounter with Discord, naturally, she becomes cunning, malicious, and grows an affinity for...balloons? And who a better victim for her evil plots then the pegasus who already spends all of her time in the air—Rainbow Dash.

This is just a silly little thing; the first story I ever wrote and published. It features fun cartoon physics and inflation, as a fair warning. (Originally published April 22, 2014)