Supernatural AU in which Cas is the President of the United States, and Dean and Sam are secret service agents.
“Mr. President I need you to get out of here now,” Dean says through gritted teeth, ignoring the blood seeping through his suit.
Cas looks at him with wide eyes and grips his hand tightly. “I’m not letting you do this!”
Dean can’t meets his eyes, but he growls, “It’s my job to protect you. Now you find Sammy and you get the hell out of here!”
Cas starts to protest again, but Dean cuts him off by fisting his hand in Cas’s suit and pulling him in for a rough kiss, which ends with Dean croaking out, “It’s been an honor serving with you, Mr. President.”
The last thing he hears is Cas’s anguished cry as he picks up a discarded gun and charges out into the fray.