Do you know this SSHG fanfic?

I read a fanfic a few years ago, but I can't remember who wrote it or the title. I do remember that it was a christmas fanfic and Fleur was dressed in a santa suite and sang Santa Baby. It was probubly posted before Ootp, b/c Sirius played a major role. But it is a Severus/Hermione fic in a future where they are married and have children. Any help would be great, it's been stuck in my head for weeks now and I'd really like to read it again.