Well, I am sure that this will put a new spin on things. I am going to give you a different bit of advise since you asked for it.

You are probably used to being the top but you love her. I get this, but it is an experience my friend and it is all about perspective. Make it about sensation. Watch her, what does she look like? Smell her perfume and memorize her, feel what she is giving you. Experience what she is giving you. Let her give it to you. So you are tied up? That is wonderful. For once in your life there is no need to be in charge of everything. In fact for once, you are only in charge of doing as you are told and pleasing her and man flying if you can get that far. When you are in her presence breathe and listen and follow. Consentrate on the scene and then when it's over you tell me if you like being tied up.

Of course you realize that a switch is giving you this advise.