#possessive!cas

“If you’re not doing anything wrong, then you shouldn’t mind showing me your phone,” Cas says coolly, his muscular arms keeping Sam pinned against the wall.  

“Let me go.” Sam’s tone is neutral. Frustration only feeds the beast. He learned that back in month one. Even then, even when Cas showered Sam with gifts, Cas was prone to anger and harsh words if Sam didn’t obey like a mindless animal.

Maybe if Sam had left then he wouldn’t be in such a mess.

Cas sinks his teeth into the sensitive flesh of Sam’s throat but, surprisingly, backs off when he’s finished marking Sam up. His property. “I liked you better before you started hanging out with Dean so damn much. I don’t think you should see him anymore.”

“He’s my brother. I’m not cutting him off, you can’t ask that of me.”

Losing Dean has never been a concern. Maybe it should have been but he thought Cas had understood and they were on the same page. And now Cas wants to take him away too?

“He’s not a good influence,” Cas bites out. He’s not screaming and that’s worse. “You haven’t been putting effort into our relationship for weeks now. It has to be his doing. He never liked me.”

It’s true.

“I can’t control what my brother thinks,” Sam points out. “But he has no impact on how I feel about you.”

Also true.

He loves the side of Cas that can be gentle and sweet. The side that holds Sam close after sex and happily fixes dinner when Sam’s had a rough day.  It’s the other side Sam doesn’t love - the paranoid and controlling side. It’s almost like Cas is two different people and they’re constantly at war with each other.

Sam runs out the door to meet up with his brother before Cas can reply, knowing full well he’ll pay the price for disobeying when he returns.

--

But not with a soft kiss and some variation of “Hey baby, who’s that guy you’re talking to?”, but more along the lines of throwing one possessive arm around Dean’s waist and pulling him all up against his own body, pressing his lips and teeth to the sweet spot on Dean’s neck that alwas makes him go cross-eyed and weak and using his free hand to go for the fucking goods, just shamelessly and inappropriately grabbing a nice and tight handful of Dean’s junk.

There may or may not be a growl somewhere in there, too.

And it’s only after Dean has let out his first soft moan and is growing hard under the pressure (and rough massage) -- because he can’t help but preen under Cas’ behaviour -- that Cas even so much as looks at the other guy, all disregard and with the arching of his eyebrow giving him an unspoken, yet no less impolite demand to fucking leave.

Yeah, but all those girls, whether it was Rhonda or Lisa or even Cassie, always hesitated to give Dean what he wanted, to claim him in this base way. Because they knew that Dean wasn’t one to be bound by anyone or anything and that any sign of possssion wouldn’t truly carry much meaning at all because Dean, like any other storm, would soon pass in one way or another, and they’d be by themselves again.

"Were you flirting?" Castiel hisses, shoving Sam up against the motel room wall, lip curling and nose wrinkling. He has one fist aggressively curled around the collar of Sam’s shirt.

Sam’s jaw twitches, but he’s smiling - maliciously. “So what if  I was?” he responds casually, calmly, letting Cas pin him there. “What’re you gonna do about it, huh?”

Castiel growls, mouth at Sam’s ear. “I’m going to fuck you senseless until you have the fear of God inside you.”

Sam’s stomach flips wonderfully. “Yeah?” His abs tighten, cock rising in interest. “And how are you gonna do that?”

"I’m going to put you on your hands and knees, treat you like the good little slut that you are." Cas tightens his grip. "And then I’m going to make you beg for it like a cock-hungry little boy. How about that?”

Sam outright moans, his knees wobbling. “J-Jesus —”

There’s a flicker of a smile in Cas’s eyes when he suddenly loosens his grip. “You’re not supposed to moan like that, Sam. It’s off-putting.”

Sam lets out a small sound. “But you really did turn me on —”

"That’s the point. Now, what were we going to do? Oh, yes. I was going to put my dick in you and you were going to like it."

“Fuck —”