I think you're going to get a lot of good replies to this.

My two cents is that you need to understand fully what she wants out of it and looks for. This lifestyle has an infinite number of ways it can be part of your life so the first thing is to learn that much. Next you need to see if you can find what she wants in yourself. Think on it and find some ways to experience it on the level she wants. Not just kinky sex, which I suspect is the only thing going on now. I wouldn't say commit to doing what she wants right away fully, that’s too much work and a lot to take in at once. Have her spend a weekend as your slave, for example (or whatever she is interested in), stop and think back on it and talk to her about it. And if you do end up doing that put yourself in the role for the weekend don’t think “how can I please her” rather think “if I had a slave what would I do to have her please me” Don’t go crazy obviously, just do things that you think or know she will accept and foremost please YOU.

And be sure to tell her what you’re doing, that you’re seeing if the shoe fits so to speak.

Read plenty about it and talk to others as well.

Good luck!