Our First Talk About Birth. Research shows that children are learning about sex at an increasingly young age and often from undesirable sources. The Q&A format, with questions posed in the childâ€™s voice and answers starting simply and becoming gradually more in-depth, allows the adult to guide the conversation to a natural and satisfying conclusion. Additional questions at the back of the book allow for further discussion. Where Do Babies Come From? is the first book in the Just Enough series.