If I didn’t, I would disqualify Myself from being her loving partner and Dominant.
Being a partner and a Dominant isn’t just about getting the things you want. If you believe that is the case, sorry, but your doing it wrong.
Even the most passive submissive has fantasies and desires. Even if they till you time and time again that all they want is to please you, let them know that being able to help them experience their fantasies would indeed please you.
Keep in mind too that even if the fantasies aren’t something you are comfortable with right this instant, they may be something you can work towards together and dabble in at a later date.