Sisters (2008)

After the death of their father, two step-sisters, portrayed by Mz. Berlin and Madison Young, discover a common interest in bondage and slavery, and decide to experiment. But what one doesn't know is that her sister has more devious plans in the works, and their experiment in slavery just might prove to be permanent. This dark tale of lies and betrayal takes BDSM video into a new realm of intensity and kinkiness unlike anything you've seen before -- with rubber, vac beds, steel bondages and harsh lesbian domination, as only John Fitzgerald can do. "Sisters" is destined to be an instand classic.