Intime Liebschaften(1981)

The writer Gellert catches Sybill, a striptease dancer and show onanist, at a sex cinema and hires her as a pleasure girl for his parties, where she has to influence business partners such as critics, publishers, bankers, etc. in Gellert's favor. There is a scandal when Daniela, the wife of the banker Vollmer, rushes off indignantly because she has no desire to watch her husband with Sybill. Another guest, the respected publisher Lutz, is the only one who does not make use of Sybill's charms, but arranges to meet her in private because he has caught fire for her.