Most of the Leviathans want to see the world burn. They want to hurt and crush and destroy, taking out their revenge on a Creator that has locked them away for so many aeons.

Luckily, not all of them are like that. Some of them are quite kind, in fact, and it just so happens that the Leviathan staying in Castiel's vessel when he supposedly explodes, is one of the nicer brand of them.

Dean doesn't know yet, because he would shit a brick if he knew Sam was actually talking to one of these creatures, but this isn't like with Ruby. For one, Cas is still around. Castiel and Leviathan has sort of melded together during the course of the last two weeks, to the point where they are pretty much one being in a borrowed body.

Turns out, Cas and Levi were the types of beings that best relaxed when someone took away their command. Sam is fully aware that he's the weaker one of the three, but right now he's in control. Cas is kneeling, Levi's eyes looking up at him, and this is a good balance for all three of them. Sam needs someone strong enough to not let him give into his soulless self; Cas needs to be a soldier with clear instructions; Levi just needs to be a part of something good.

Sam curls a hand across the worn leather collar around Castiel's throat, and the blue-eyed ex-angel lets out a quiet sound before he lowers his head to bare his neck. It's a clear sign of submission, and Sam recognizes Levi in the movement.

It's a strange, being three in a relationship with only two bodies, but it works for them.

The shackles dig into Castiel's ankles, branded with sigils to make him unable to get them off without Sam's help. Levi whimpers when Sam tugs on the collar, just a bit, and bares his teeth at the human.

"None of that," Sam murmurs and tugs on the similar shackles bound around the vessel's wrists.

Levi keens when he's forced up onto his feet, the eyes flickering between blue and black as Cas and Levi both fight for Sam'a attention.

Sam loves this part. He kisses Castiel's lips twice as long as he will normally do, feels the angel leave and Levi surge against him midway. It's a weird dynamic.

It's been long, and they're all tired. Castiel is trembling where he stands, his powers out of reach with the shackles, and he gasps out a 'Please, Sam'. Levi takes over for a second and snarls, but it's a sound of desperate want, not anger.

"Okay," Sam smiles and releases the shackles. The minute they're off, Castiel's body seizes in orgasm, and the two creatures groan simultaneously.

When they're done, Castiel's body slumps to the floor, and Sam is there to catch it so they don't hurt themselves.

"Are you okay, Cas?" Sam murmurs. He's sated himself; having released earlier.

"Yes, very much," Castiel replies with a tired smile. He kisses Sam slowly, gently.

"Levi?" Sam asks then, because he's grown fond of the creature sharing Castiel's vessel.

Levi purrs and bites his lower lip, not hard enough to bruise, and Sam laughs.

Yeah. Dean's going to shit a brick when he finds out. Then again, Sam always had a tendency to end up with so-called monsters. Right now, that's not something he minds too much.

~*~