Two different Worlds

Castiel and Dean have never really noticed each other. In fact they are total opposites. Cas hangs out with the other socially known rich people like Raphael, Uriel, and Anna while Dean likes to talk to Jo and his other middle class sort.what will happen when dean and cas are partnered up for a class project and feel a connection.
First time writing so please don't be too judgmental and I own nothing except for the story.
AU high school