With all the talk of fluidity and bisexuality and malleability, people have forgotten one basic thing...
Sexual fluidity is not malleability. It just means that women -are more likely- to shift sexual orientation over the course of their life span, than are men. This is not a process of conscious will. And this does not mean all women. Some women will remain relatively stable throughout their life. And the women who are "fluid" were probably originally bi to begin with, not totally straight (like Votoshka).
Even being bi does not mean you get a choice in who you find attractive on any given day. I used to exclusively find men attractive for about a week out of the month (biological realities!) and exclusively find women attractive for about one week, and then it would be pot luck the rest of the time. Ive spoken with some bi women in the past and discovered that Im not the only one who experienced my "dominant leaning" as being tied to my fertility cycle. I recently found out that I may already be in perimenopause, so this makes a -lot- of sense as to why I stopped being attracted to men. It also makes sense as to why some women (who were previously pretty straight) shift and come out as gay in their 40s or even 50s.
I don't think that female sexuality can be measured by the same yardstick as male sexuality. We have different biological realities with which to grapple.