Stress - A Destiel OneShot

Dean looked up to find a curious angel standing over him.

“Jesus!” Dean swore as he jumped, banging his knee on the table as he did so. “Cas!” he said, interrupting what would doubtlessly be Cas’ assurance that he was not Jesus at all and was simply an angel. 

Cas shut his mouth and then opened it again, still frowning. “Yes.”

Dean took a few deep breaths to calm himself and took a swig of beer. “What…” he began. “What are you doing here?”

Cas sat on the chair opposite to Dean, the frown still on his face. “I am here to….”

Dean sighed and shut the laptop lid, and pushed it aside. He gestured to Cas. “You look like crap.”

He did. That look he got when he was worried or conflicted was on his face.

“Yes,” Cas said again. “I…”

Dean wondered if there was something he should be saying. “Yes…?”

“I am here to mate with you.” Castiel finally blurted out.

There was a shocked silence. Dean’s jaw fell open while Cas waited nervously.

“…what?!” Dean finally choked out.

“Sam said that you were acting frustrated and-”

“So you want to sleep with me?!”

Cas frowned at the interruption. “Sam informed me that you usually dealt with frustration by mating. I’ve come to offer my services.”

Dean narrowed his eyes. “Sam.” He snarled. No wonder Sammy had cleared off to god knows where. Damn brother. He looked at Cas. Damn angel. Damn everyone. He took a deep breath, pushing away thoughts of strangling his brother till a later date. “I…I’m flattered by your offer Cas, really, but uh…”

Cas was suddenly right next to him, inches from his face, searching his eyes.

“Yes Dean?”

“But…” he swallowed. This was going to be hard to explain.

“My body is human,” Cas stated.

“What?”

“We can mate.”

“That’s not my problem Cas.”

Cas frowned, tilting his head. “Then what is?”

“I…” he was at a loss. How do you explain heterosexuality to an angel?  “It’s complicated.”

“Then teach me.” Cas demanded.

“I can’t!” Dean snapped back, standing up and grabbing another beer, opening it and sitting on the bed furthest from Cas.

Cas narrowed his eyes and teleported next to Dean.

“Shi- Stop that!” Dean demanded.

“You are getting aggravated.”

“Damn right I am.”

“I must insist we mate to relieve your frustrations.”

Dean snarled. “You know what? Fine! Let’s mate! As long as you shut up about it!” And then he grabbed Cas’ hair violently and pulled the annoying creature in for a kiss. And then Dean realised what he was doing, and pushed Cas away as non-violently as possible, and looked at his beer as if it had betrayed him. And it had. Obviously. Why else would he be making out with one of his best friends? He looked at Cas to apologise, but his breath caught in his throat. The angel was looking at him with eyes bluer than he had ever seen, and his hair was all messed up from where Dean had grabbed it.

Dean cursed the fact that Cas had chosen such an attractive form. An attractive male form. He wasn’t against homosexuality. But he was a hundred percent that he wasn’t one. But then again, that pleading look in Cas’s eyes was challenging one of the only certainties in his life.

“Oh fuck it,” Dean said and leant in for another kiss.

Besides, Cas was an angel. Surely that was a whole other branch of sexuality.

And Dean didn’t really care.

Cas was right – mating really did relieve stress.