Many of the babes in the galleries on this site star in adult video movies. In Japan they're referred to as AV for short (adult videos). To view sample clips you can visit Japanese porn videos which rotate new video clips galleries every day.
Here's some pics of some babes that start in Japanese sex videos. Some of the more popular models include Maria Ozawa, Yua Aida, Jun Natsukawa and Aki Hoshino.
Also, visit Asian webcam girls for good cam site recommendations. Lots of little hotties to 'speak' with.