I’ve read this story a few times along with its sequel. I was so sure I bookmarked it but unfortunately I had not.
The first story is set during Harry Potter and the Goblet of Fire and Harry gets together with Viktor until the last few chapters, where a prank goes seriously wrong and Harry gets hurt by Viktor. The unique character in this story is Jamie Oliver and his family.
The sequel continues to have Jamie in it, and the final pairing ends up being Charlie and Harry, with Bill and Tonks as a side pairing.
I know the writer had been editing and/or rewriting bits of it.
I think the titles were:
- Surprise, Surprise
- Surprise continues
but I have not been able to find hide nor hair of them.