Sangen om den røde rubin AKA The Song of the Red Ruby (1970) - Annelise Meineche

A young, idealistic business student has ambitions to be a concert pianist, but his obsession with beautiful women keeps him from achieving his goal. To earn money for his tuition, he takes a job as headmaster of a small girls' school. There his weakness for beautiful women is put to the test when he is pursued by a bevy of sexy coeds. The film is based on a novel by Agnar Mykle.

Uden en trævl aka Without a Stitch (1968) - Annelise Meineche

When a high-school girl complains of her inability to reach sexual
climax, her doctor suggests that she keep a diary of her sexual
encounters. She does just that and soon finds herself caught up in
a sexual merry-go-round that includes making a hardcore porno film
in Sweden, an escapade with a German sadist and a lesbian
encounter.