You must convince her that it is really FUN. This is Bob's wife. In our case, it was me who had to convince my husband. I have always been a show off. Once a month I pose nude for an art class and I have long loved going to topless and nude beaches. It was a job to pursuade my husband to take it all off but, once he had done it, he agreed that it was liberating and he did enjoy women looking at him just as I enjoy being seen naked in public by men. Have her contact me if she wants to talk about it: bobmrsh@gmail.com
Good luck