Plot summary
When Bill and Virginia expand the study to include couples, they discover that the nature of sex is affected by the participants' attraction to one another. Austin is asked to participate in the study again, but is disappointed that his partner is not Jane, and cannot achieve an erection. This angers him, and he demands that the findings be thrown out and that he be paired with no one else, as Jane will only have sex with him as part of the study, due to the fact that Austin is married.
Bill experiences anxiety about becoming a father. Ethan is worried about dating Barton Scully's daughter, Vivian, but she reassures him that they were meant to be together. Libby suffers a miscarriage, a loss that leads Barton to begin to reconcile his relationship with Bill. Virginia deals with her son Henry's resentment and rebelliousness. Bill delivers his stillborn daughter, and later shares a moment with Johnson, during which he breaks down in tears.
Credits
Adapted from Wikipedia contributors, Masters of Sex season 1. HTML formatting and reference markers removed.