I guess my outlook on this is a little different - knowing the BDSM niche pretty well
Women who are looking for femdom/trampling/facesitting are going to search on Google for the femdom category - not the for women category as most LL owners optimize their for women page to be "hunks,straight men" type of categories.
If a woman is interested in femdom she will go straight for the BDSM or Femdom category - and the traffic would be more targetted - as far as making it "for women" I would recommend suggesting a specific description to the LL owners that promotes the womens point of view for those that look for it in the BDSM categories
A side benefit of doing it this way would be to attract the men that also like this approach (which based on traffic there are many) and again they are not going to be looking in a hunks or straight men category type search terms
