Georgia and Ivy are the sexy St Trinian's sixth formers. When Ivy realises that she's forgotten to wear panties, she asks to borrow Georgia's spare pair. But Georgia won't let her, which leads to Ivy picking up a pie and smushing it right into Georgia's face. Georgia isn't standing for that and gets revenge, and it's on!

Along the way, clothes come off and more pies and slime are used, until both girls are naked and trashed. Now what will they do when teacher comes along?