By Matt Demarco For Daily Mail Australia

Published: 09:27 BST, 24 July 2024 | Updated: 09:32 BST, 24 July 2024

Two glamorous Australian model sisters have shared an adorable childhood photograph with their fans.

The older sister, 31, took to Instagram on Wednesday to share a sweet picture of the pair as babies.

She is perhaps best known for her appearance on season seven of Australia’s Next Top Model, where she finished as a runner-up.

She has posed for several well-known brands including Bras N Things and Guess, and has also appeared on season four of I’m A Celebrity…Get Me Out of Here!

In Easter, the big sister welcomed her first child with her personal trainer boyfriend.

Meanwhile, the 27-year-old sister has also had a successful modelling career.

The blonde beauty is often seen at events such as Australian Fashion Week and the Australian Open looking chic and flawless.

She has also been quietly seeing a 51-year-old billionaire, who threw her a lavish birthday bash late last year at his Vaucluse mansion.

Aussie model sisters have set tongues wagging as they shared a sweet childhood throwback photo. Pictured

Aussie model sisters have set tongues wagging as they shared a sweet childhood throwback photo. Pictured

So can you guess who the modelling sisters are?

That’s right – it’s Simone and Madeline Holtznagel! 

In the picture shared to her Instagram Stories, the sisters are seen side by side.

Simone captioned the image, ‘Baby Simi’. 

Pictured: Simone Holtznagel with her baby

Pictured: Simone Holtznagel with her baby

Pictured: Madeline Holtznagel

Pictured: Madeline Holtznagel

So can you guess who the modelling sisters are? That’s right – it’s Simone and Madeline Holtznagel!

It has been a busy year for the sisters, who are often seen at exclusive events around Sydney and Australia.

Simone confirmed that she had given birth to a daughter in a post shared to Instagram in March.

She revealed that her baby girl Gia had been born on March 31, Easter Sunday, and posted an array of adorable snaps of herself and boyfriend Jono Castano with their baby girl.

Meanwhile, Madeline appears to be going strong in her relationship with billionaire and owner of the Merivale hospitality group, Justin Hemmes.

She is often seen disembarking from his sea plane after luxurious holidays with the CEO, who is worth around $1.39billion.

:
Guess who? Aussie model sisters set tongues wagging as they share sweet childhood throwback photo

***
Read more at DailyMail.co.uk