Buying Princess Some Fuck Me Shoes

I have decided that I will buy my Princess a proper pair of "Fuck Me Shoes" as expression of thanks for being with me and a sign that I appreciate how lovely she is and how lucky I am to have someone like her.

I would like the shoes to be as sexy as possible whilst not actually being totally outrageous, then maybe she will actually wear them.

I have never bought shoes for a woman before, so I am a bit lost, but I was thinking of something like these:

Or these:

Or these:

Or these:

Or these:

Or these:

Or these:

Any opinions, anyone?