Dean and Sam were stopped in their tracks with the emergence of Crowley. The hunter’s patience with the King of Hell. The mark wasn’t making things any easier - his anger rose much easier than usual and becames more uncontrollable then ever.
“I need this off me,” he said pulling his shirt sleeve up revealing the mark of Cain. “Since you helped get it there, you’re gonna help get if off. And Cas can’t help here because he’s already helping up there,” he said pointing skyward. “Or wherever Heaven is,” he added almost dismissively. The actual locale unimportant.
“I think what Dean means is we could use your expertise here,” Sam interjected seeing how agitated his brother was getting.
Not that he was any more thrilled to be asking for Crowley’s assistant, but desperate times called for desperate measures.
“So for now,” he added clearing his throat as he positioned himself between the two. “We’re on the same team.”
The king looked at Dean, more importantly, the mark of Cain. Maybe he should’ve have told him a little more information prior to him receiving it. But that was all water under the bridge now. Besides, they were the Winchesters. They always manage to get out of scrapes, somehow. This would be no different.
“Alright, alright... Besides what I’ve told you already, what do you want to know?” Crowley knew exactly what they wanted. Of course, he couldn’t actually tell them that the only way to get rid of the mark. They’d try to kill him, again, and that would just put a damper on things.