Prince Castiel has been the lover of Dean Winchester, son of nobleman John Winchester, for years. Until his mother arranges a marriage for him. He comes to Dean with the terrible news - but what Dean doesn't know yet is that he's to be married as well. ((Medieval Human AU))
You're not telling them a love story. ((Post end!verse, Cas is telling the people a story about before things went wrong. He isn't telling them the story they want to hear but he's telling the only one he knows)).
"It's raining," he says. ((endverse))
Dean and Cas have been best friends since high school, and in love for just as long. Neither knew the other felt the same until some comments made my classmates at their 15-year reunion.
It's the end of the world; hardly a time to think about birthdays. ((Dean/Cas, End!verse))
You chase the sun over the horizon and don't stop 'till the sky turns pink. ((Implied Dean/Cas, 9x10 Coda))
He used to buy you roses. ((Dean/Cas, End!verse, 2nd Person Cas POV))
You fall in love like (with) a forest fire. ((Dean/Cas, 2nd person Dean POV, set at some point in s9 or is slightly canon divergent. No real spoilers though.))