How to get wife to express her kinks

Don’t get me wrong I’m not complaining, my wife and I have a great sex life but most of what we do comes from my kinks and sexual desires (dp/fisting) she seems to love it with toys and pretending someone else is really there in the moment but doesn’t really seem interested in adding a real person. Anyways. What’s a good way to get her to open up to her wants and desires?