I'm kind of an undercover Destiel shipper, I don't write much for the ship, but I thought of this, and it's probably already been done, but here's my take on the whole, "blow me, Cas!" thing. Enjoy.

The fourth time Dean said, "Blow me!" to Cas, Cas actually did it.

Cas had been trying to explain why he thought Dean's plan for charging into the vampire next wasn't smart, when Dean slapped his hand down on the table and yelled, "Blow me, Cas!"

Cas cocked his head to the side as he usually did, taking in Dean's tense and angry appearance before walking over to him, gripping his shoulders, and lifting him out of the chair. "What the…" Dean said as Cas shoved him back against the wall. His eyes flew open as Cas dropped to his knees. "What are you doing?!"

"You said blow me. I assume you are making a reference to oral sex, which you would like me to perform on you."

Dean just stared down at Cas, a look of pure confusion on his face until Cas started to undo his belt. "Whoa there, buddy."

Cas pushed Dean's hands away. "I know what I'm doing."

"You do?"

Cas rolled his eyes and yanked Dean's pants and boxers down to his knees. Dean gasped and twitched, as if he was going to cover himself, but changed his mind. Cas took Dean's half hard cock in his hand and stroked it a couple times before taking it in his mouth. Dean gasped and fisted his hands in Cas's hair. "Jesus…"

Cas rolled his eyes, but chose to ignore Dean's choice of words. It was apparently common for humans to blaspheme during sexual interactions. The act of giving head wasn't the most enjoyable experience he had ever had, but he was quite enjoying the sounds Dean was making.

Cas had learned how to give head by watching porn, after Gabriel made the suggestion that next time Dean said "blow me" to him, he should actually do it. It wasn't often that Cas listened to Gabriel, but this seemed like a good idea. Dean had mentioned that he enjoyed partaking in sexual activities.

He was brought back to the present by Dean tugging on his hair and groaned, "Cas, you have to stop, Cas I'm gonna…" his voice choked off as he moaned again. Cas ignored him and kept up his movements until Dean let out a strangled cry and Cas tasted the bitterness of Dean's release.

He sat back on his heels and swallowed a couple times to get the worst of the taste out of his mouth. It wasn't bad, just…unpleasant. Dean was breathing hard as he yanked his pants back up and fumbled with the button. "Did you just…?"

Cas cocked an eyebrow at him, unsure of what he was implying. Dean's jaw dropped. "You did."

He blinked a few times. "Where the hell did you learn to do that?"

"Watching porn."

Dean laughed in disbelief. "You, watching porn?" He ran a hand through his short hair and laughed again, shaking his head. "Wow…okay."

"So, it was pleasurable?"

"Yes, Cas, it was."

Cas nodded and stood up to stretch. Dean let his eyes fall over the angels body, stopping at his crotch. He laughed a bit to himself. "Alright, your turn." He smirked. "Let's see how much of a virgin you really are." He backed Cas up until the back of his knees bumped the bed, then Dean pushed him down. All sense of rationality flew away as Dean's lips met his, and he grabbed Dean to drag him down onto the bed. They didn't get up for the rest of the day.