Karl Stefanovic’s daughter Willow spends quality time with nine-month-old Harper May

Big sister duty! Karl Stefanovic’s daughter Willow, 14, embraces nine-month-old Harper May as they spend quality time together

Karl Stefanovic‘s 14-year-old daughter Ava Willow was on sister duty as she looked after her half-sister Harper May on Monday.

The Today show host’s wife Jasmine Stefanovic (née Yarbrough), 37, shared a sweet photo to Instagram of the sisters as they spent quality time together.

In the picture, Willow held nine-year-old Harper in her arms as they both smiled for the camera. 

Big sister duty! Karl Stefanovic’s daughter Willow, 14, (left) embraced nine-month-old step-sibling Harper May (right) on Monday in a cute photo

‘Big sister,’ Jasmine captioned the sweet photo.

Karl shares his daughter Willow – as well as sons, Jackson, 20, and River, 13 –  with his first wife, Cassandra Thorburn, whom he split from in 2016 after 21 years of marriage.

The Today show host met shoe designer Jasmine during a boat party in Sydney just months after his public separation.

Precious moments: The Today show host's wife Jasmine Stefanovic (right), shared the sweet photo to Instagram of the sisters spending quality time together

Precious moments: The Today show host’s wife Jasmine Stefanovic (right), shared the sweet photo to Instagram of the sisters spending quality time together

The couple married at the five-star One&Only Palmilla resort in Los Cabos, Mexico, in December 2018.

Karl and Jasmine welcomed their daughter Harper on May 1, 2020. She was born at North Shore Private Hospital in Sydney.

On Saturday, Jasmine shared an adorable photograph of Harper May showing off her fashion prowess on Instagram.

Ex: Karl shares his daughter Willow - as well as his two sons, Jackson, 20, and River, 13 - with his first wife, Cassandra Thorburn (left), whom he split from in 2016 after 21 years of marriage

Ex: Karl shares his daughter Willow – as well as his two sons, Jackson, 20, and River, 13 – with his first wife, Cassandra Thorburn (left), whom he split from in 2016 after 21 years of marriage

Moving on: Karl met Jasmine at a boat party in Sydney just months after his separation, and they married at the five-star One&Only Palmilla resort in Los Cabos, Mexico, in December 2018

Moving on: Karl met Jasmine at a boat party in Sydney just months after his separation, and they married at the five-star One&Only Palmilla resort in Los Cabos, Mexico, in December 2018

The adorable tot was smiling for the camera as she posed in a very fashionable pair of cream sunglasses.

Jasmine hilariously captioned the image: ‘Get it girlllllll.’

Harper paired her sunglasses with a pink ruffled top and and shorts with Vegemite-jar print.

Fashionista! On Saturday, Jasmine also shared this adorable photograph of Harper May showing off her fashion prowess

Fashionista! On Saturday, Jasmine also shared this adorable photograph of Harper May showing off her fashion prowess