Dean and Cas were walking from the Impala after a hunt and instead of going straight inside Dean pulled something out of the breast pocket of his jacket.
"I got this for you Cas, because I thought you might need it one day now you can't blip in and out anymore."
He opened his hand and he held out a key, same shape as the one to the bunker. Castiel shook his head, "How can you trust me with this?"
Dean pushed it into his hand, "Take it. I realised that you still don't understand otherwise I wouldn't have to keep telling you. I need you. I forgive you and I don't care. You can have this, it isn't conditional. This is so you remember to always get your arse back home when you are done."
Dean left the key in his hand. Cas just looked at him, taken aback and for once he didn't try and tell Dean he wasn't worth it, he just turned and used the key to open the door and Dean followed him inside.
