there were tons of gratuitous explicit sex scenes in that book. For those who haven't read it, let me quote one (only 27 pages in):

"at that moment she felt his hand come up beneath her bridesmaid's gown, heard the rustle of material giving way, felt his large warm hand between her legs, ripping aside the satin panties to caress her vulva. she put her arms around his neck and hung there as he opened his trousers. then he placed both his hands beneath her bare buttocks and lifted her...she let her right hand drop from his neck and reached down to guide him. her hand closed around an enormous, blood-gorged pole of muscle. it pulsated in her hand like an animal and almost weeping with grateful ecstasy she pointed it into her own wet, turgid flesh."