Pretty much what the title says. Any stories where shy!innocent!cas catches the eye of Dean who's determined to have him, and so stalks or woos him until he gives in? Bonus point's if he's a virgin! (but not a must)

Additionally, I'm also looking for AU stories where Castiel is a natural submissive. Someone who is eager to please or who can't function unless he's being ordered around, or is just the type to easily go down on his knees for anyone more dominant that him. And of course this 'dominant someone' being Dean Winchester.
I know it's a pretty specific search but I'm hoping theres at least someone who can help me out.

Please?