Hmm, this is a tough one...

I say - go ahead and let her prove herself right, and enjoy every luscious second of it in the process!! How can you lose? She'll discover a surefire way to please her man, and you don't have to fret about how to bring the subject up to her! Looks like a win-win situation to me!! Enjoy!!!

(and don't forget to report back on the details...)