She (or he, depending on the scene variant) is not a victim in the traditional sense. In Pure Taboo’s writing, the client is often an active participant who uses their sexuality to manipulate the PI, only to realize too late that the PI is better at the game. This reversal creates the "twist ending" the studio is famous for.
Below is the long-form article.
III. Uncovering the Truth (2:00 - 4:30)