How Do You Define Erotica?

I am going to be honest.  One of the reasons that I decided to take the leap into creating this blog is that while I was doing some reading, Googling, etc on the book Fifty Shades of Grey, I came across several posts that dealt with the idea that it is disturbing for women to read erotica, perhaps even be "turned on" per say with what they read.  I found this to be very infuriating.  Why is it okay and socially acceptable for men to go to strip joints, watch porn on t.v. and computers, etc and that is "normal", but to hear of a woman reading a book that is sensual and enticing, it is socially unacceptable and viewed as shameful?  I admit, I use to be uncomfortable with the idea of reading erotic and more sensual works, however once I read a couple, I found absolutely nothing wrong with it.  Yes, it is sizzling, titillating, and may get the heart pounding, but why is that wrong?  As long as the stories are about consenting adults "playing" and most stories have a relationship basis to them, who cares?  It is fun.  I do not consider myself to be a "disturbed" sort just because I enjoy this genre.

What are your thoughts?  Do you think that reading erotica is shameful?  Do you think that it is more socially acceptable for men than women to explore their sexuality in such a way?  Hey, at least women are using their intelligence and imaginations by reading, rather than having to be visually stimulated!  Anyway, I would love to hear what you all think of this issue!