My Twisted Sister Triple Feature

MY LITTLE SISTER
1971. 49m. Suzanne Fields, Nancy Martin, Rene Bond, Ric Lutze.
A sexy teen takes sadistic delight as her younger sister is tied, menaced and fucked by party animals.

TWO SISTERS (AKA ONE PAGE OF LOVE)
1979. 67m. Dir: Peter Balakoff. Cast: Gena Lee, Nancy Hoffman, Jennifer West.
Two sisters live out complicated and disturbing sex lives.

HOT SISTERS
1975. 53m. Denise Sloan, Diana Sloan.
A prudish woman is initiated into the a more sexual adventurous life by her slutty sister.