Night Owls

For the anon prompt for a 'fluffy destiel coffee shop au': Socially awkward Cas works the night shift at the best coffee shop on campus- conveniently owned by his brother, Gabe. One night at 2 am, Dean comes in with a crash, and leaves with his number. Dean looks like a player, but he's actually rather shy, and Cas finds he has to be the one to help Dean ask him out.