Yumi Stynes is an Australian writer, broadcaster, television presenter, food fanatic, fitness enthusiast, and mother of four—including two teenage girls. She is the presenter of the award-winning ABC Radio podcast Ladies, We Need to Talk, about female health and sexuality. Yumi Stynes lives in Sydney.

Melissa Kang, MD, answered teenagers’ questions about puberty, sex, and relationships for more than two decades as the “Dolly Doctor” for Australia’s Dolly magazine. She is a practicing medical doctor for marginalized young people and has academic roles at the University of Technology Sydney and the University of Sydney. Melissa Kang lives in Sydney.