The Bellboy and the Playgirls

The Bellboy and the Playgirls is an American 1962 film by Francis Ford Coppola and Jack Hill that was a a reedited version of a German film of 1958 originally titled Mit Eva fing die Snde an, directed by Fritz Umgelter with Coppola and Hill shooting sex scenes inserted into the film for a US release,

Source: Wikipedia