I want to surprise my wife with some rather revealing lingerie, but a lot of on-line sites have their items by dress size. I know her pants size, bra size, pantie size etc. but she doesn't have any dresses. And if she did she hasn't worn them in so long I wouldn't trust it. Any suggestions I have come across (like having her try something on or measuring her) would tip my hand. If someone can give me any advice it would be greatly appreciated.