Josefine Mutzenbacher - Die Hure von Wien (1991)

It starts with Count Bobby, who always lives out his sex drive without restraint. Now, however, he is to be married in order to finally produce a progenitor for the noble family. Count Bobby doesn't like that at all, and without further ado he pretends to be "the wrong way around". The family then sends him to a very special kind of cure, to the city-famous Viennese whore Josefine Mutzenbacher, which excites Count Bobby all the more, but entails a series of hot sex experiences.