First and foremost do have a big discussion about goals and ambitions and what she wants and what you want out of this. That is the best place to start anything and never forget to be open and communicative about it all. Without that it is really hard to build enough trust as to her being comforteable enough to submit.

An "easy" way might be to choose her clothes for her every day so that she feels that you are in control and she isnt without it being too humiliating for her at first then you can take bigger steps as she gets "used" to it if you know what I mean.

one tip anyways, and I am gonna ponder some more and might come up with some other ideas later on.