The first story is a "he said/she said", sub-"Rashomon" type thing about a schoolgirl who gets in a very compromising position with her English teacher after he agrees to tutor her after hours.
The second story features the best-looking girl (Marianne DuPont), but is a fairly pedestrian story of a young woman trying (and trying and trying. . .) to not only lose her virginity, but find true sexual satisfaction.
The third story involves a mischievous girl who agrees to give it up to her artist boyfriend if he first agrees to seduce her young stepmother and break up her father's marriage.
The fourth and best story is about a couple who try to get over on the girl's strict parents in a rather novel way--the girl pretends to be possessed by the devil and the boyfriend poses as a priest, and the whole thing turns into a genuinely hilarious parody of "The Exorcist", (and is actually a lot more entertaining than "Magdalena", director Walter Boos' "serious" rip-off of "The Exorcist" a few years earlier).
The last story features the only really recognizable actress, Gina Janssen, a Jesus Franco regular and erstwhile Danish porn star. She appears in a rather lame tale of a girl who is dumped by her older married lover and gets back at him by going out with his handsome nephew.
The third story involves a mischievous girl who agrees to give it up to her artist boyfriend if he first agrees to seduce her young stepmother and break up her father's marriage. This segment starts at 25:07.