Learning to Fly : Just when, exactly, do you become a "mom"? That's what new mother Susan Schaffer wonders when her daughter, Lily, is born. A chance meeting with high school acquaintance JoJo, also a new mom, gives Susan and her daughter friends to learn and grow with. The two women, along with their husbands, parent their girls, Lily and Tiffany, through the stubborn toddler years, the growing years of grade school, the dramatics of junior high, and the challenges of the high school years. Finally, as the girls approach graduation, all four of these women face the inevitable questions: Are Lily and Tiffany ready for life on their own? Are the mothers ready to let their girls go? Have they indeed learned to fly?