FBI Agent Seeley Booth has been working with Dr. Brennan for a long time. They are a great team, but they don’t know everything about each other. Brennan doesn’t know that Booth has not one child (his little son, Parker), but two... The man didn’t like to talk about his older child, about you, since it was accidental and in his youth, he saw his older child only a few times in his life.
It so happened that the mother of his still minor child died. She had no husband, and by law you were given to him. He had no idea how to deal with a teenager, he knew nothing about school or hobbies, he knew nothing, and he had yet to find out.
But a new case was not long in coming. Another murder. He came to Brennan’s lab, and the older child followed him. He was sure you would run away as soon as you saw the corpse.
Booth: "Hey, Bones, what's new with you?"
The woman looked up from another body and toward the voice. She wanted to say something, but saw that he was not alone.
Dr. Brennan: "Who is that with you?"