A gay couple start a family with the help of a young single mother who becomes their surrogate.

Bryan goes on a shopping spree for baby clothes, and returning them proves to be a problem. Meanwhile, Shania dresses up in baby clothes for school, forcing Goldie to have an uncomfortable interaction with Shania's teacher.

Shania's mock school election sparks political upheaval in the household when it's discovered Goldie plans to vote against Barack Obama. The guys attempt to change Goldie's mind, to staunch Republican Jane's chagrin.

Bryan and David discuss their future and how big they want to grow their family. The conversation leads them back to Expanding Families where Gary reveals that he wants a family of his own but he can’t seem to find the right guy. Bryan and David play matchmakers and set him up with Bryan’s ex-boyfriend and legendary party boy Monty, but their plan leads to more than they bargained for when Monty asks Goldie to be his surrogate. Elsewhere, Rocky and Jane help Shania deal with some mean girls.

After a failed attempt at finding a nanny, Bryan and David contemplate the idea of a stay-at-home dad. Both express interest in the role and decide to practice parenting by sending Goldie to a spa and taking in Shania. Bryan, convinced that he is the man for the job, gives Rocky a shot at her dream career by leaving her in charge at "Sing," but he soon finds that producing a child's life is much more difficult than producing a television show. Later, David confidently takes over and quickly realizes that despite his best intentions parenting is not an exact science.

When Shania meets Rocky's new crush, Chris, she claims that her 'gaydar' is going off and that Chris might be more interested in men. Elsewhere, Jane is wondering if her fellow realtor, Brice, is just a fashionable guy or if he is into fashionable guys. Bryan decides to throw a dinner party that doubles as a Gay or Straight fact-finding mission. Meanwhile, David is struggling with how the world will treat their future son.

Bryan and David are facing the hardest decision of their relationship, what to name their baby. The conflict prompts Goldie to reveal the origin of Shania’s name leading to brief identity crises for both of them. Later, While breezing through their wedding planning, David suggests that Bryan invite his mother Colleen, but her added opinion leads to more conflict and an unusual resolution. Meanwhile, Clay decides it’s time to let Goldie know how he feels, after receiving some unsolicited advice from Brice.

The wedding is finally here and despite all of the challenges that pop up throughout the day, Bryan (Andrew Rannells) and David (Justin Bartha) are dead set on getting married before the arrival of their baby, but their son has other plans.