provocative beginning! If you are going to leave this as a one-shot can I suggest you submit it as a challenge on sites like the yahoo group pottersplace3 for authors to turn this into a story. There are so many possibilites. PWP would be a waste of the potential of this beginning. You could do angsty- harry learning, angry harry, single-ship Harry/fleur, harry/harem, Harry who finds he is not interested in that kind of relationship with fleur dealing with the responsibility of her binding vow. The possibilities are endless.
Like I said, a very provocative fic. I hope it is just a beginning.
Thank you for sharing your time and talent with us.