Once upon a time there were two rats in a cage.
Whenever their owner drew near, they would attempt to look innocent, and spend all their time running frantically on the convenient wheel. But at night time, the one rat would plot, watching everything around carefully, while the other would eat. Their mission : To take over the world!!
One day, Amy turned to her companion and squeaked “Are you pondering what I'm pondering?”
Piper squeaked in her turn “I think so, Brain, but how do we reverse this sex change?”
It’s Piper, Piper, Piper, Piper, Piper and the Brain!