"I don't think I'll stop touching you tomorrow." Which also wasn't unusual after a case. He knows he's gotten incredibly attached to Castiel and it could be a problem should their enemies figure it out. But Castiel is still a formidable warrior in his own right and can defend himself if necessary.

He smiles to himself, leaning back against the headboard. "Good, Cas. You're doing so good for me. Now, I want you to put the clamps on."