Take her blind-folded to an expensive resort hotel suite overlooking a lake or ocean. Assuming she wants children, take off her blindfolds and present her with a photograph of a cute baby. (have the ring taped to the back of the photo)...Then ask her, "will you be the mother of my children?" and ask her to marry you. Idea inspired by the song by Bryan Adams entitled "If you really live a woman" and featured in the movie Don Juan De Marco.