After so long together, Sam's nearly psychic when it comes to Castiel. Or maybe it's some leftover manifestation of his demon blood abilities. Whichever it is, he's grateful for it because it means he knows that, when Castiel turns away from him, it means he's safe enough to take James out of the room.

What happens afterward is a dressing down in front of everybody in the club's common room. Sam had allowed him to get his pants and shirt, but not to dress before telling him off in front of God and everybody. Because there was no way he was going to let anybody think that James was somebody they could leave their sub with.

When James stammered out that choking Castiel had been an accident, Sam nearly came after him physically.

Instead, he turned and walked to the locker room area, grabbing his coat and the bag with Castiel's clothing in it before heading back to the room they'd booked for the night. He nodded to the staff member. "I'm going to have to borrow the blanket," he told the man. "I'll bring it back in a few days, but I'd rather get Cas home and I'm not sure he's up for being manhandled enough to dress."

The guy nodded. "Do what you gotta. We'll make sure you have a straight line out."

And, honestly, Sam couldn't have said how much that meant to him at the moment. He stepped past, shutting the door so that he could go to Castiel in private. "Cas? Cas, it's Sam. I'm going to touch your shoulder, all right? You're safe and nobody else is in here but me."

Once he'd let Castiel know that, he reached out, laying his hand against the man's shoulder.