Bettkarriere (1972)

Alternate Titles
Swingin’ Models USA

A softcore film, but Tabu Love created an 18-minute porn loop from it, using porn inserts (using other, anonymous, performers). This was also titled Bettkarriere. Sybil Danning, Elfi Estell, Angelika Wehbeck, Ingrid Steeger, Bianca Herr and Vanessa von Brandenburg appear in the footage used in the loop.