Yes, we've been asked also by friends and some about Fifty Shades of Grey. Considering who and how they asked, I thought this might be another "one-of-those-raise-the-eyebrows-thingy". So I googled and wiki'ed. Oh so that's it.
Women should comment on this, I believe. Here's one that I follow. Let Pia do the talking.
It says a lot about our culture when so many women find their escape in an erotic novel in which there is clearly lacking a balance of power between the female and male protagonists, respectively. You’ve come a long way, baby, so far, in fact, that you’re further back than when you started. We used to call that denial.