Fran, a hot, auburn-haired hippie chick, has just moved to town. She has no money or job but she has a hot bod and, in early 70s triple-XXX films, that’s all she needs for a full scale frenzy. Her neighbor, Kim Dupont, knocks on the door of Fran’s hotel room and acts as her "Welcum Wagon!" She promises to show Fran more than the big city, and get her an interview at her place of employment.
KID SISTER is a fairly unremarkable early hardcore film from the days when color and sound were big selling points. There's nothing particularly eccentric or unusual in terms of story or execution that makes it stand out. Its chief point of interest today is the appearance of the beautiful and charismatic Fran Spector as the star. She raises the bar and makes what might have otherwise been boring into something entertaining.
Fran is, however, not the title character when this is called KID SISTER (FRAN'S FRENZY is obviously another story). That's Kim Dupont as a neighbor who befriends Fran. XXX film pioneers Fifi Watson and Judy Angel also co-star, and the Fran/Fifi scene is particularly good. Most of the men are unknown except for Orrin North, and that's no great loss. However, the boss guy has the tiniest desk in the history of bosses.
Worth a watch if you're fascinated by the dawning of theatrical hardcore or any of the lovely ladies in the cast.