Boys, we’re told, are having sex younger and more irresponsibly than ever. But as author Peggy Orenstein learned while doing research on her new book, “Boys & Sex: Young Men on Hookups, Love, Porn, Consent, and Navigating the New Masculinity” (Harper), out now, the reality can be very different. For Mason, the simple act of kissing was something he largely avoided in high school, afraid that without enough experience he would do it wrong. “He thought he was just supposed to know,” writes Orenstein. Even holding hands felt like it came with the risk of humiliation. When he went to college he met a girl, Jeannie, who invited him back to her dorm room to fool around. He wasn’t able to perform, and blamed .