Arranged Marriage || destiel (alpha!dean &a omega!cas)

In a world where Alpha's rule and Omega's obey; the King-In-Waiting Dean Winchester must find an Omega to be his husband or wife to help him rule the kingdom. He doesn't want to get married, why would he? He was only 23 for god's sake, and his father wouldn't die in years. He preferred to go out in his dog form on ru...