This set of posts comes from Pastor Mark Driscoll and his wife Grace. The sermon series The Peasant Princess brought up dozens of questions that they felt they should respond to. The result is this blog series: Christian Sex: Frank Answers to Honest Questions.
Answer: As long as no one else sees it but you, that is fine. As a general rule, most men are highly visual. So, a wife who enjoys wearing revealing clothes in private is greatly appreciated.