Catherine RINGER in Tabu Video Nr. 5206 – Erotic Fire – Die Abenteuer des Sex Diplomaten : Here is the clipped version of the scene, it is from the film Lingeries intimes (1981) of which Tabu Video Nr. 5206 features a extended clip under the title “Sex Besessen”.
http://www.egafd.com/films/details.php/id/l0323
Besides Catherine RINGER the scene features Dominique Saint Claire and Christian Loussert. Quality is reasonable to good taking in account the VHS source, German dubbed.