The Prequel to "Christmas", the story of how Harry and Severus became a couple even with the threat of Voldemort hanging over them. M/M slash and the other warnings are in the story.

It's Christmas and Severus Snape hasn't gotten a gift for his beloved husband, Harry. But he, soon, discovers that Harry's gift is perfect for the both of them. MPreg . . . And I don't care that it's not Christmas. I was inspired.