Firstly, my understanding is that it's an adaption of Guilty Pleasures, which didn't have any sex in it. The writer mentions disliking the early books, so she may not have read enough of them to realise the content of that first story.

As for if/when they adapt the later books... it's hard to say. On the one hand, there are more comics featuring explicit sexual stuff than there used to be, particularly since the Comics Code stopped being the be-all and end-all for mainstream publishers. On the other hand, comics are a different medium, and there's a lot to get through in a small number of pages per installment. I'd willingly sacrifice having to *see* nekkid Anita embracing whoever, just so long as I didn't have to read repititious stuff about how hot! wet! and tight! it was for the six pages it seems to take in prose...