Though it claims to be the "uncut version," the one scene of Sisters that most likely got cut – the consummating lez-out between the two titular siblings – appears here as a bonus scene, rather than a re-inserted segment of the movie (which may explain the truncated running time of such).
Nevertheless, it is here, and it is hot. Unfortunately, there's no real rationale for how it comes to pass; the "story," such as it were, details older sister Jo going out to a party with Penny Flame while younger sister Kylie stays home and fantasizes about making love to Jo? but with Sylvia Saint playing her in the dream. Afterwards, Jo comes home and they tell each other, "I love you." The end.
Ah, the glory of DVD extras!
Retailing: Dreamers of lesbian incest.