Yes, I am aware that South Africa is considered somewhat prudish in behaviour, but really, those people who will click the book will also see the recommendations for the like books with titles of "Confessions of a love slave". Now if they are adult and want to buy it, yay for them. Consider the fact that the majority of well-to-do households these days have children that are far more adept at navigating online shopping then the adults then you'll be exposing kids to stuff that really is the material reserved for corrupting oneself after you finish grade 8 Mathematics.
Oh, and the content people at the site, an actual blurb to the book would not hurt either. So be a nice little site and add on the Adult section, you know you want to.