I'm not talking "sensual."  I'm not talking explicit.  I'm not talking erotic.  I'm talking absolutely crude.  The male and female leads (I cannot bring myself to call them hero and heroine)  were not at all sympathetic or attractive.  No character development.  Nothing. Just crude sex.  No matter what I pay for a book, by darn, I finish it!  Not this one.  It is absolute disgusting trash.  When things headed for anal sex, I "closed" the book and deleted it.  Filth.  (Oh, yeah: "incest" was going on, too.)