The Girl on the Motorcycle

Novel written by André Pieyre de Mandiargues’s La Motocyclette (The Girl on the Motorcycle, 1963). 

A story about an unfaithfull naked girl... well under her black leather suit, that is... and she rides a big black Harley all the way to be by her lover. The unfaithfull girl is played by Faithfull Marianne.

The girl on a motorcycle (1968)
The Movie directed by Jack Cardiff, with Alan Delon and Marianne Faithfull.