Probably at the end of the book. She was the one who lost control in talking to Dresden and almost ripped out his guts with her nipples at full attention at the thought. She had to be restrained by one of her male partners.

Then there's the twins in Grave Peril with the female half who tries to jump Dresden (or Michael, she's not very discriminating) at every opportunity and has to be controlled/rescued by her brother, who's eerily similar to the childlike and destructive female character in Changes who has to be counseled to be careful and prudent by her male significant other.