In another photo, Lara sweetly cosies up to her actor husband, Sam Worthington, 44, as they sit at a dinner table.
Whilst Sam can be seen deep in conversation, his wife holds on to his arm as she looks at the camera.
"You and Sam look good together," one fan remarked on Lara's post.
The event was also attended by big names including Isla Fisher, Rita Ora and Bella Heathcote - the latter of whom popped up in some of Lara's photos.
Despite seeing success in the US, Lara and Sam, along with their three kids Rocket, Racer and River, returned to Australia so that Sam could star in the Sydney Theatre Company’s production of Appropriate.
However it seems unlikely that the family will be moving back anytime soon with Lara admitting to the Daily Telegraph that she's loving life Down Under.
“My whole schedule is based around my sons, and my husband Sam,” the mum-of-three told the publication, adding that she can't believe how different her life is now.
“Recently through the very wet period in Sydney, I did a shoot in between dropping and collecting my sons from school. Looking at the photos, you would never imagine the reality of my before and after. I love that no matter how glamorous my day can be, being a mother pulls me right back into my wild and wonderful reality.”
“They’re not ones to make it known to the public, but their friends and family sure are in the know about how close they are and how an engagement can be right around the corner,” a source told the publication, adding that Liam “went through a lot with his breakup” with Miley Cyrus.
“Liam looks up to his brothers and would love to one day also have that long-lasting marriage with a partner. He’s ready to be a husband — he just wants to be super confident in his relationship with Gabriella before he gets down on one knee!”
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