Lesbians that have never been with a man are rare. Women that have never slept with a woman are common. What I take from this is there are very few for sure 100% lesbians, but there are quite a few dedicated straight ladies. And unlike a man who might attain some stigma for engaging in gay sex, women really don't***. They can transition in and out of lesbian without much of a fuss. So who knows what she actually wants out of sex?, and who cares? she's a woman lol

***One stigma, not unique to lesbianism, but apparently endemic is tattoos