Dr. Money also mentioned to the Reimers that if they ever reveal the truth about their daughter the sex change would fail. Brenda grew up to be a pretty girl, every year she was taken to visit Dr. Money along with her brother to document the progress. According to Money's published reports through the 1970s, the experiment was a success. The twins were happy in their assigned roles: Brian a rough and tumble boy, his sister Brenda a happy little girl. Money was featured in Time magazine and included a chapter on the twins in his famous textbook Man & Woman, Boy & Girl. The reality was different at home, when Brenda started to behave in masculine manner. Brenda refused to play with her dolls and toys and was far more interested in playing with her brother Brian. It was becoming obvious to everyone around her that she was indeed very masculine and behaved as such. It was clear at this point that the experiment was not successful, as Dr. Money had anticipated. It was then that Dr. Money started to conduct interview with Brenda about the difference between a boy and a girl and the genital differences that distinguishes between them in an attempt from Brenda to understand what is was like to be a girl and behave like a