Painting myself out of the corner....please help?

[love_of_anime]

I have an interesting problem. I began an original story a while back. Just recently my interest in the piece was renewed. I felt like I could not move on until said story was finished. The problem is I have forgotten an original plot element. Here is a really short summary including the problem.

Boss asks harried assistant to meet with a new male client. The client is seeking a personal favor from the boss lady. Sparks fly between client and harried assistant and the story goes from there. My problem is I forgot what the personal favor was....

So now here I sit stuck. The story can't move forward, or in any direction until I can create a new favor. Any ideas? Help would be much appreciated. :)