Work Text:
“You’re like a dog marking your territory Cassie” Cas looks at him defiantly, Sam kept resolutely behind him. A physical barrier between him and the archangel that wants to hurt him so badly.
“Little brothers! Always wanting to steal the big brother's toys! You know what? You can have him” lucifer has that gleam in his eye, the one that means he’s found a new game that only he can win.
“Why don’t you have him right now?” Cas’ eyes widen at the tone of Lucifer's voice, filled with command. It's now clear to him exactly what Lucifer's plan is, Sam is still none the wiser, not knowing about the old trick that archangels can use to force disobedient angels back into line.
It’s been a long time since Cas felt the command of an archangel, almost thinking it wouldn’t work even if they tried. He feels so human these days but just like always cas is helpless but to obey.
He rounds on Sam and he can’t stop himself from sliding a hand in his hair. Using it to pull him down and crush his mouth in a kiss and when lucifer gives an unsatisfied hum in the background, he can’t help but use the remnants of his strength to spin Sam around and bend him over the nearest flat surface.
“Beautiful Sammy. It’s good to see you used like the whore you are” he’s distantly aware of the tears streaming down Sam's face but he still can’t stop, his body being puppeteered by a much more powerful angel.
He stalls by touching Sam's body. Hoping that somehow someone will burst into the room and get Sam as far away from him as possible and when he can no longer stall and he pulls Sam's jeans down, it’s like the world stops.
They’ve never done this before, taking things slow, trying to help Sam feel safe and comfortable but well, Sam is beautiful and he’s spread out before Castiel, however much neither of them want him to be, and Cas is very much affected. Sam can feel it poking against his thigh.
“You’ve gotta get him ready first. Bitch always tightens back up” Lucifer says, in a mockery of a mentor, while he throws lubricant directly at Castiel's head. Cas stretches him slow and methodical, his heavy breaths and Sam’s small whimpers the only sound in the room.
Despite himself Sam is hard and glowing a faint pink all over, Hot to the touch from the burning heat of his arousal. He’s wanted cas for so long, and Lucifer must have known this, it's hardly like there are any secrets between him and Lucifer, He knows him inside and out, “His sad little thoughts and feelings” as meg had so eloquently put it.
When cas’ dick finally makes its way inside him, it’s just like any other time a dick made its way inside him. Except it isn’t because it’s Cas’ and he can feel his calloused hands in the small of his back encouraging him to arch it, and he can hear the grunts that he’s trying not to let out and he almost thinks he can feel his grace (or what’s left of it) crackling beneath his skin. So different from the angel who orchestrated this whole thing. Cas feels like love and light and compassion where Lucifer had only felt like burning cold and punishment.
And when Sam collapses onto the desk and cas follows suit, fitting himself over Sam's back. An amazing pressure that only adds to the fucked out feeling, Sam can almost forget how this whole thing started and that lucifer is still watching.
“Well guys…. This was fun. We should do it again sometime. Toodles” and before either of them can stop him, Lucifer is gone.