Iain and Olivia debate whether they are ready to become parents as the first scan looms, while Ashley gets the three-year itch as Greg tries to celebrate their anniversary, and Rosie takes care of Tamagotchi toys with Thalia's reluctant help.

Iain meets up with an old friend and accidentally ends up in a throuple. Plus, Ashley attends a boxercise class with Thalia and inexplicably invites Robbie.