6. Brave New World

Libby and Bill vacation in Miami, but Masters is drawn back into his work by a sexually adventurous couple there, while Libby tries to open a dialogue with them. Virginia enlists Jane in an effort to debunk Freud's theory that a vaginal orgasm is more mature one than a clitoral one. Dr. DePaul complains to Masters about the respect given to Johnson, who is often mistaken as a doctor, whereas DePaul is often mistaken for a member of the secretarial pool. She also accuses him of conferring legitimacy upon Johnson because of his sexual attraction to her.

Langham finds a cure for his sexual dysfunction in Barton's wife, Margaret. Bill realizes that it is a disservice to call Virginia a "secretary", and says that she will now be called his Research Assistant. He will also hire a secretary to help them, which will allow Johnson to focus on the study. Virginia reveals that female participants in the study have shown or reported that they can orgasm without genital stimulation, and when Masters expresses skepticism at this, Johnson disrobes, attaches the electrodes to her body, and induces him to help her show this to him. They then have sex.