Mind Palace - Destiel oneshot

(Definitely includes smut, so if that's not your style, then this isn't your style)
Dean's art history classes were huge. They were one and a half hour lectures, in a giant hall. With the lack of individual attention from the professor, and the length of the lectures, Dean daydreamed a fair amount, but it was nothing compared to the man sitting on his left. He was always gazing into the distance, and always seemed out of it if for some reason he was asked a question. Dean had only ever spoken to him once, but he he wished he knew whatever was going on in the man's head. What would happen if one day Dean's wish was suddenly granted?