Dean understood - oh, he would have, if that look was coming from anyone other than Seamus. His best friend. Who, admittedly, he'd thought about looking at him that way more than once. Still, having it happen, Dean didn't know at all how he was supposed to read it.
"Well, okay then.." he said dumbly, and he licked his lips and met Seamus' eyes a little helplessly. "Shea...."
He could kiss him. The thought flitted into his mind unbidden and suddenly all the air seemed to go out of the room.