"Steal the crown, and you will be rewarded."
"How so?"
"That's for me to know and for you to find out."
"You're not good at bargaining. Haven't had much experience, have you? I bet you've never even made a deal in your life." When the demon said it, Crowley stepped out of the shadows. To the humans passing the alleyway, the scene would look like a simple street argument. But to a demon, or any other monster for that matter, it would look like a transaction between two demons. And, indeed, that's what it was, except on a much larger scale.
"Do you know who you're talking to?" hissed Crowley, anger showing in his meat-suit's eyes.
"Some low-life demon who assumes he can take over Hell." The demon sounded far too cocky for Crowley's liking.
"No, you see, that's who I'm talking to. You're talking to the King of the Crossroads, and if you don't fail me, I will be King of Hell. The Winchesters failed to get the rings of the four horsemen, and, well, we all know what happened to them." The lesser demon was slowly backing away, eyes wide.
"W-what's in it for me?"
"Hmm, well, I won't kill you, first of all." Crowley threw his head back, letting out a maniacal chuckle. "And, let's see, if you succeed, I'll give you a place in my new kingdom. So, what do you say? We have a deal?"
The demon nodded, more likely because it wanted to get out of Crowley's presence. "Deal." With that, it disappeared into thin air.
"They always go for power," Crowley muttered, shaking his head as he walked away, disappearing about halfway down the road.