J.P. and the polka-dotted aliens

"JP is mad! JP is having a fun day playing at the park. He's pretending to be a monkey in outer space, zooming around in his rocket ship. But his fun is ruined when the polka-dotted aliens show up. Of course, the polka-dotted aliens aren't really aliens at all. They're twin girls who want to turn his rocket ship adventure into a fancy tea party. This makes JP very mad! Can JP find a way to have fun?"--Jacket.