Die Samenräuberinnen (1980)

Felix, an extremely horny department head, does everything he can to nail his secretary. When he succeeds with some tricks, he realizes with horror that this girl is much hotter than he is. The two are surprised by the wife and the secretary is of course immediately fired. Helga has no choice but to look for a new job. As a waitress in a bowling alley she now works up the whole bowling club with some friends and becomes a real sperm robber.