What makes a great entry in a long-running series is the casting—though "casting" might be too strong a word for girls who volunteer on the spot. Volume 29 features a diverse mix of contestants. There are the shy, girl-next-door types who seem surprised to find themselves on stage, as well as the exhibitionists who were born to perform. This contrast is the engine of the video’s entertainment value. Watching the transition from hesitant amateur to confident show-off is the core fantasy the site sells.