In that case, I think an 80mm and/or a 55mm is a good way to start. Both lenses are good, and cheap. If you get a good enough deal, one of the slower model 150s (4.0 or 3.5) might be due in short order, if she likes using the camera. Medium teles are often helpful for shooting what you mentioned, as I am sure you know.
I think.. you think like I think.
Thanks all. If, of course, any of you want to get rid of your extra lens for reasonable prices, let me know.