When few first see Jean he appears to be Gorge's girlfriend. She is a girl who likes psychic powers, the paranormal things. Jean is shown as nice, lovely, well-educated woman who we love a lot. She gets excited about things very easily, and she doesn’t lose the interest very quickly. The Overlords see it and select her as someone very special. And later this was proved. She gives birth to Jeffrey, and he is the first child who experienced the transformation. She and her husband end with suicide after their children left.
Jean Morrel in the Essays