This is how I thought s7e23 when Cas and Dean went to go get "Baby" from a hidden garage. Mild BJ in here.

"If we attack Dick and fail, then you and Sam die heroically, correct?" Cas says turning to Dean.

"I don't know. I guess," Dean says confused at where Cas is going.

"And at best, I die trying to fix my own stupid mistake. Or... I don't...die – I'm brought back again. I see now. It's a punishment resurrection. It's worse every time."

Dean now fully turns to Cas surprised at what he had just said.

"I'm sorry. Uh, we're talking about God crap, right?"

"I'm not good luck, Dean," Cas says in his low tender voice.

"Yeah, but you know what? Bottom of the ninth, and you're the only guy left on the bench... Sorry, but I'd rather have you, cursed or not. And anyway, nut up, all right? We're all cursed. I seem like good luck to you?"

Cas looks up at dean a small smile appearing on his face. Did the Dean Winchester just have a chick flick moment with him of all people?

"What," Dean asks staring at smiling Cas.

"Well, I don't want to make you uncomfortable, but I detect a note of forgiveness."

Cas slowly moves towards him.

"Yeah, well, I'm probably gonna die tomorrow, so…" Dean scoffs brushing the comment off.

"Well, I'll go with you. And I'll do my best," Cas says in a low voice now fully close to Dean.

"Cas what have I said about personal sp-"

"Dean I'm sorry," Cas says putting a tender kiss on Dean's neck.

"I'm sorry about opening purgatory," Cas says moving his kisses to Dean's chest.

"I'm sorry about working with Crowley." Cas moves his hands down now unbuckling Dean's belt.

"I'm sorry about the lying," Cas says hovering over Dean's lips palming Dean's growing erection which was responded by a hearty groan.

"I'm sorry about breaking Sam's wall."

Cas is now fully on his knees and he takes out Dean's cock exposing it to the cold air. Dean takes in a sharp breath.

"I'm mfffmff," Cas started before shoving Dean's cock into his mouth.

Dean's hand move fast towards Cas's raven black hair. Cas moves away now licking the tip of his head slowly.

"Am I forgiven Dean?"

"Yes...You're so forgiven," Dean says before letting out a loud moan.

Dean looks down to see a small smile form at Cas's mouth before he takes him in.