<P> Meanwhile, Flora was spending all of her time caring for their children . Their fourth son, Cole Weston (1919--2003), was born on January 30, 1919, and afterward she rarely had time to leave their home . </P> <P> Over the summer of 1920 Weston met two people who were part of the growing Los Angeles cultural scene: Roubaix de l'Abrie Richey, known as "Robo" and a woman he called his wife, Tina Modotti . Modotti, who was then known only as a stage and film actress, was never married to Robo, but they pretended to be for the sake of his family . Weston and Modotti were immediately attracted to each other, and they soon became lovers . Richey knew of Modotti's affair, but he continued to be friends with Weston and later invited him to come to Mexico and share his studio . </P> <P> The following year Weston agreed to allow Mather to become an equal partner in his studio . For several months they took portraits that they signed with both of their names . This was the only time in his long career that Weston shared credit with another photographer . </P> <P> Sometime in 1920 he began photographing nude models for the first time . His first models were his wife Flora and their children, but soon thereafter he took at least three nude studies of Mather . He followed these with several more photographs of nude models, the first of dozens of figure studies he would make of friends and lovers over the next twenty years . </P>

Weston’s print of the month club brought him financial stability