This is a dated look of teen-agers trying to learn about their sexuality. The girls have decided the boys need help to get over their hesitancy, fear, and diffidence. They set up a bordello in their boarding school.
What a difference 60 years make in societal mores. The story is dated and very innocent. Even the students are innocent compared to today's mores and writing. I found it interesting. I also laughed as the students were negotiating what acts and how much. I chuckled throughout the story at their innocence.