Most commenters seem to be enamoured of the woman playing Nicole, who is in the first sex scene, but, for me, she's the least attractive woman in the film, and the one to watch is the one at 20:50 and 27:09.
QUESTO MI PIACE!!! la naturalezza!!! Guardate la semplicita' e la velocita' con cui lei fa una pompa maestrale al minuto 3:15 - 3:50... senza menarsela lui sborra subito e via!! COSI' MI PIACE!! (altro che quelle scopate da ore dei film porno di oggi!)
https://xhamster.com/movies/5946374/hotel_zur_scharfen_muschi.html
http://www.egafd.com/actresses/details.php/id/x01672