Heiße Höschen (1982)

Womanising Italian lingerie entrepreneur Ricardo tries to launch his newest collection in France, and bed the local talent along the way. Problem is: his pretty new girl Lisa won't play ball; partly because of his womanising, and partly because she rather plays doll, especially with her girlfriend Minouche. Then there is a plot twist as Ricardo gets took by the local brainless criminals - a nice opportunity for the director to fit some bondage scenes in. Ricardo cannot pay the ransom, as he's broke, but Lisa (who comes from a wealthy family) bails him out and eventually true love prevails.