I have to say that i'm one of those poeple who hates reading stories twice. However there seems to be one story i can't get enough of. Lexin's A Life more ordinary. It brilliant. It start out with Dumbledore finding a prophesy about a child being born to destroy evil. He then convences Harry and Severus to get married and produce the baby. At the same time we learn that Sev been Voledemort's sex slave. Anyways i know that this has been down many times before and is rather cliched and overused but Lexin does a wonderful job, the stroy is amazing and the characterization is perfect. This story is absolutely wondeful.
Here is the link to her skyhawk page and her story.
http://archive.skyehawke.com/authors.php?no=72