One of the many German "report" sexploitation films from the early 1970s, with the only distinction that it focuses on female apprentices instead of schoolgirls.
TV13
I Don't Want to Sleep Alone
Left Bank
Sea of Love
Coconut Clash
Keep on Masturbating: Non-Stop Pleasure
Cashback
Factory Girl
The Last Supper
Honeymoon
Decamerone '300