two point seven five years later:

"Hey Angel."
Castiel looked up from his book and met a pair of candy apple green eyes in front of him. „What's on, Dean?"
The blonde smiled innocently. „Nothing. I'm just admiring the prettiest human being on this planet."
"What have you done?" Castiel frowned and closed his current novel. "Last time you behaved like this, our kitchen was on fire. Before that, you floated our bathroom. And before that-" "Yeah okay okay, I understand, I'm an idjit. Got it, wing ass."
Castiel stood up and put his arms around the now pouting Dean. "You are not an idiot, you are just dumb, that's all" he purred in the blonde's ear. "So what did you do this time?"

Dean shrugged and took a step back. "I bought you a ring, wanna try it on? That would mean you're gonna have to marry me, but I'm pretty sure you could bear that, the ring is expensive and absolutely stunning."