Debbie Does Dallas III: [the Final Chapter] (1985)

The film is nothing but a series of unrelated hardcore sex scenes strung together by an on-screen narrator. Most of the scenes involve opposite sex couples. One, however, starts with two women and adds first one man followed by an additional man. The sex is oral and vaginal.

The F-word is used thirty-nine times. The S-word is used five times. Other vulgar expressions abound, but there's not a whole lot of swearing.