‘The only thing I was thinking was ‘don’t cry, that’s what women do’: What does ‘masculinity’ mean today?

In 2016, journalist Peggy Orenstein published “Girls & Sex: Navigating the Complicated New Landscape,” a best-selling study of the sexuality of the modern female. An intimate view of the sex lives of young women, Orenstein brought levity to a fraught subject marred by a clear generation gap between parents and their daughters. The book welcomed extraordinary success, allowing Orenstein to continue her studies and later write “Boys & Sex: Young Men on Hookups, Love, Porn,...