AU of 5x03 wherein Jo is the Righteous Man, it's Castiel's last night on Earth (again), and Dean is a hooker.

                  Pastor's son, Castiel Novak, works in Harvelle University's library; Dean Winchester is the new trainee. Neither party wants to enjoy being paired together... but they just might.

                  He knows, you realize. He wants you, too.

                  Cas loves Dean irrevocably and uncontrollably with a fervour that scares even him: an ex-angel of the lord who was created to love.

                  Castiel is an angel who has been cut-off from heaven to live with Man for a hundred years. Trying to right a wrong, he accidentally hires Dean as his rent-a-boy and learns a thing or two about being human.

                  After they stop a plot to tear open a hole straight to hell, the Winchesters face more trouble when zombies start rising from their graves across the country. Bobby calls all hands on deck and Sam and Dean, along with an angel, a mess of out-numbered hunters, and a very reluctant prophet of the Lord, have to try and save the world. Or go down in flames with it.

                  Michael has a plan to break Team Free Will, and it involves turning Castiel into a rentboy.

                  "Dean, look at me," Castiel's voice whispered soft and low in Dean's ears, dragging a curl of pleasure down Dean's spine at the sound alone.