"Sam, may we speak?"
"Sure Cas, what is it?"
Castiel looked about, and Sam could have sworn he was nervous, confusion sweeping across his own features, "Cas?"
"Is Dean here?"
"No. He went out," not really comfortable about going into any great detail on Dean's extra curricular activities with the angel.
"I've been having feelings."
"Feelings?"
"Yes. Like that of when my vessel was infected with gluttony, only I do not feel hunger."
"Are you having them now?"
The angel nodded once, "I don't understand, it is usually strongest when in the presence of Dean."
Sam wore a bemused look, opening his mouth and then closing it, he had to bite the inside of his cheek, "Uh…" clearing his throat, "Does it feel like butterflies?"
"Yes. Do you know what it means?"
Just then the door swung open, Dean swaggering in with that grin that made women all weak in the knees, and which drove his brother totally crazy, but tonight? Sam had a wicked grin of his own, his eyes flicking back to Castiel, as his brother removed his jacket, "I'm not sure Cas, maybe you should ask Dean."
"Ask me what?"