„Dean I …", Castiel begins but Dean immediately interrupts him.
Outside of the little cabin, a little out of the town they are working a job the rain is pouring down heavily. "Cas I know you're bored but before Sam's done with his research we can't do anything. Besides, most people we'd want to question probably aren't awake this early on a Sunday morning." "But Dean I need something to do." Dean looks out into the rain a little grudgingly. "Yeah, me too."
Suddenly his face lightens like he had an idea; he gets up and starts undressing. "Cas, take your clothes off!", but Cas just looks at Dean incredulously "You know I'm not comfortable with that, what with your brother in the next room..." Dean just shakes his head as if Cas had just said something silly and, while taking his clothes off he replies, a slightly inpatient: "No, no! Just c'mon do it!" He waits until a confused Cas has undressed to his boxer shorts, then proceeds to pull him outside towards the rain.
As Cas resists at the front door, Dean just keeps tugging "Come on, this won't kill you, trust me." Standing in the downpour, Cas just looks even more confused than before, in the cabin. "And… What purpose does this hold?" Dean puts his hand onto Cas' shoulders and tells him in a soothing voice "Relax Cas, isn't it nice to feel the rain on your skin – without worrying about soaked clothes" "I never worried … " Dean shots him an annoyed look whereupon Cas exhales and closes his eyes. When he speaks again, his voice is softer, too. "But yes I agree it is oddly soothing." "Okay good Cas. You know, this whole thing has one other advantage" As Castiel opens his eyes again he sees that Dean is grinning. Now suspicious he inquires "And what would that be?"
Dean steps closer to Dean so that there is barely two inches space between them and lays his hands onto Cas' hips. He whispers: "Now that I already got you almost naked, there's not much clothing left that I have to remove" and then touches his lips to Castiel's, which are now smiling too and moves his hands further downward on Cas' body.
[Please note: This is the first fanfic I ever wrote and I wrote it on a whim, in not even an hours time.]