After reading this whole tread, I think the more important questions are being left out. After all Kinsey's research points out that in his view sexual orientation is a matter of a range on a continuum.
I would not allow any woman to do that to me-period.
The more important and more exciting question to ask is what is the woman's orientation and what does it mean if she enjoys wearing and using the strap on?
Does this mean that she has a good old case of Sigmund Freud's Penis Envy?