Dear Whoever,
Maybe you could make some information about anal intercourse from a women's point of view available to your lady. Tell her to look up Tristan Taormina's site at www.puckerup.com
Tristan has also written a book about Anal Intercourse specifically for women. It is very frank and informative, but is also spicy enough to create a "curious interest" in even the most conservative lady.
Tristan has also produced a slightly flippant video based on the title, but I think this was more of an excuse to get in front of a camera than to truly educate. My boyfriend, of course, loved the video, but I personally would much rather be doing it than watching it!!!!
Good luck, and remember with a bit of persistence, a lot of patience, and heaps of lube, your lady just might come to luuuuurrrrvvve it as much as I do.
XX Jill.