Body Rocks

Just when I thought I'd finished Body Rocks, I find that I haven't! To coincide with the timeline in the fourth and final book - Laws of Lust (and I'm still not sure of that title) I need to add an extra day. It will add another 5-10k, but what to write? I don't like adding boring filling-in-the-gaps scenes because as a reader myself I don't like to read them. Perhaps another sex scene? Nope, that won't do. I'm all out of sex scenes for this book!  So what to write? Answers on a post card please!