I thought that the scene with an almost naked Sasha was needless, and it is a scene that has been more or less mirrored in several other OYL titles. I wouldn't have minded it if there was some indication that Sasha and Mr Average had had a prior relationship, but her conversation with her bishop afterwards indicated that this was a one-off. I hold some hope that there is a plotline that will spring from this- some of Sasha's statements during the scene were indicative of...something. But if nothing comes from it, then it was a sex scene for the sake of it.
That's not to say that the book isn't otherwise very good; I love Alan Scott in his new role.