An unrepressed Dean is a wonder in bed, open to anything and everything, panties to painplay. He fucks like, well, a demon, and he bends Crowley into so many positions that he loses count, tracking them by which ones make him come hardest.
An unrepressed Dean also isn't a Dean very concerned with his partner after the fact, except to hear how damn good it was, and now that Crowley's got all of him but the sweetness, that's the only part he finds himself wanting.