Weekend Today presenter Allison Langdon has just shared the most adorable pictures of her two children, Mack James and Scout Heather, this week.

Langdon shares the two children with her husband Mike Willesee Jr who is the son of the legendary TV icon, Mike Willesee Sr, who sadly passed away this month.

The 39-year-old posted a gorgeous collage for her 23,000 followers on Instagram which showed two-year-old Mack bonding with his baby sister.

The adorable photo shows Mack barely being able to contain his joy as he holds Scout in his arms.

“It’s taken a few days, but Mack is enamoured with his new baby sister Scout Heather, he’s decided she can stay (for now!),” the caption read.

Last November, a pregnant Allison revealed the exciting news that she was expecting a baby girl while appearing on Nova 96.9’s Fitzy and Wippa radio show.

“Do you know what you're having?' asked host Michael 'Wippa' Wipfli, to which Allison cheerily replied: “It's a little girl!”

In October, the reporter told 9Honey she was “past the halfway mark” in her pregnancy and was extremely excited to welcome her first daughter.

“I've been great, I’ve felt fine. [There's] the usual sickness first trimester and tiredness, but nothing unusual,” Allison revealed.

Allison noted that although her pregnancy had been a relatively easy one, many of her friends had not been so lucky.

“I know so many mates who have struggled big time with morning sickness, so I don't dare complain about a couple of off days,” she said.

Mike Willesee Jr has had a rollercoaster experience of emotions himself, losing his media titan father, Mike Willesee Sr, 76, to throat cancer on March 1.

Barely 24 hours later, his wife had given birth to his second child, Scout Heather Willesee.

Allison is currently on maternity leave from Channel Nine and has been married to fellow journalist Mike for over 10 years.