After seeing the Melbourne Yum Mums' Instagram feed, Maria invites them to her baby shower in Adelaide -- a lavish affair with a luxury theme.

The Melbourne mums arrive safely at Maria's, where she shows off her designer baby gear and introduces the girls to her mother, Margherita.

Maria celebrates her baby shower, with the Melbourne Yummy Mummies in attendance.

It's the Yummy Mummies event of the year, but there's news that's going to cause a huge shock, and an uninvited guest could spoil the big party.

What do you do with the placenta after giving birth, and is this the first time Maria doesn't get her way?

The Melbourne girls try to bring on labour for Lorinska who is overdue, who is stressing over house renovations instead of nesting.

Margherita persuades Maria to get a nanny and Lorinska hosts a sip and see.

The Yummy Mummies are in Brisbane for a baby casting which doesn’t quite go to plan. Carlos has a big surprise for Maria.

It's supposed to be a classy lunch and they should be making peace, but one jaw-dropping comment will trigger an all-out war.