Oh, I thought you would be gone longer.

Sam and Castiel share a dorm room at Harvard University. Sam is very diligent about his school work, while Cas on the other hand, is not. A lot of that also has to do with the fact that Dean, Cas's secret boyfriend, happens to come visit his brother's dorm a lot.

Sam has plans to work on a project with Jess at the library, leaving Dean and Cas to have some alone time.

A big thanks to a certain Jane for helping me on this story.