I really enjoyed this - most of all the 'persuasion session' in the hallway of Grimmauld Place, and Harry's thoughts as to Snape's possible identities :). Harry's inner voice was great throughout, tough and not at the same time.
The sex was excellent, and I loved your Harry, looking for someone a bit dominating, and ending with Snape who's obviously very well positioned to play this role. The sex (especially the orgasm denial) was very nice, and I also liked your glimpse of post-DH world.