They've mastered the rules of love—now comes the ultimate test. Newlyweds Max and Ruby Saddlerwhite have built a life grounded in love, compromise, and hard-won understanding. But when Ruby starts dreaming of cribs and lullabies, Max panics. Parenthood has no playbook, and for someone who lives by research and rules, it's the one challenge Max may not be able to navigate. Before they can settle the question, life hands them a trial run: Max's cousin is deployed overseas, and her young son, Aiden, needs a home. Max and Ruby are parents overnight—ready or not. As sleepless nights, meltdowns, and unexpected joy reshape their world, Max and Ruby must face the hardest question of all: what does it really mean to be a family? Read the complete Rulebooks trilogy: The Rules of Love The Rules of Engagement The Rules of Parenthood About the Author: Cara Malone writes contemporary lesbian fiction with drama, depth, and plenty of heat, including the Amazon bestselling medical romance The Origins of Heartbreak and 2017 Rainbow Award Honorable Mention The Rules of Love. Learn more at caramalone.com