Any chance a few ladies could petition for a value to be added to the options which simply makes it clear you don't want to pick a value?
N/A or "Imaginationland" or some such?
As it is I still snigger a little when I see profiles with "Pubic Area: No" as I imagine some sort of anatomically incorrect Barbie doll sort of set up.
![Big Grin](images/smilies/biggrin.gif)