Karl Stefanovic and his future bride Jasmine Yarbrough look loved-up at charity luncheon in Sydney

Today host Karl Stefanovic and fiancée Jasmine Yarbrough are set to tie the knot in a picture perfect Mexican chapel in December.

And on Thursday, they looked every bit the loved-up couple while attending a charity luncheon for Youngcare at Sydney’s Bar Machiavelli.

The Channel Nine personality, 43, and his bride-to-be, 34, were all smiles as they posed on the red carpet at the event.

He’s smitten! Karl Stefanovic and his future bride Jasmine Yarbrough look loved-up as ever as they attend charity luncheon in Sydney on Thursday

Placing his arm around the small of Jasmine’s back, the high-profile TV star appeared absolutely smitten with his blonde stunner.

The couple had stepped out to support Youngcare’s Sydney lunch, which was hosted by the charity’s national ambassador and Karl’s colleague Sylvia Jeffreys.

With their wedding date rumoured to be nearing, Karl appeared to sport a slimmer frame than in recent months.

They're all there! Karl also posed with Today co-stars Sylvia, Georgie Gardner, Richard Wilkins, sports reports Tim Gilbert, and weather girl Natalia Cooper

They’re all there! Karl also posed with Today co-stars Sylvia, Georgie Gardner, Richard Wilkins, sports reports Tim Gilbert, and weather girl Natalia Cooper

Svelte stunner! The shoe designer wore a cream long-sleeved maxi dress that showcased her slender physique. Pictured with friends, including model Montana Cox (second left)

Svelte stunner! The shoe designer wore a cream long-sleeved maxi dress that showcased her slender physique. Pictured with friends, including model Montana Cox (second left)

Blonde beauty! The former model accessorised with a pair of statement gold earrings, with her pearly whites on display as she smiled from ear-to-ear

Blonde beauty! The former model accessorised with a pair of statement gold earrings, with her pearly whites on display as she smiled from ear-to-ear

Beaming alongside her beau on the red carpet, the shoe designer wore a cream long-sleeved maxi dress that showcased her slender physique.  

The former model accessorised with a unique black box bag and a pair of statement gold earrings.

She also posed with a selection of friends and models, including former Australia’s Next Top Model winner Montana Cox.

Ambassador duties: Working the room, Sylvia also took photos with New South Wales Premier Gladys Berejiklian and Prime Minister Scott Morrison

Ambassador duties: Working the room, Sylvia also took photos with New South Wales Premier Gladys Berejiklian and Prime Minister Scott Morrison

Lunch with friends: Sylvia also happily posed with dress designer Rebecca Valance - who designed her wedding gown

Lunch with friends: Sylvia also happily posed with dress designer Rebecca Valance – who designed her wedding gown

Karl also posed with Today co-stars Sylvia, Georgie Gardner, Richard Wilkins, sports reports Tim Gilbert, and weather girl Natalia Cooper.

As an ambassador for Youngcare, Sylvia took to the stage during the event to speak about the charity and welcome guests. 

Working the room, Sylvia also took photos with New South Wales Premier Gladys Berejiklian, Prime Minister Scott Morrison, and dress designer Rebecca Valance.

But isn't he the RED Wiggle? Children's entertainer Simon Pryce ditched his signature colour as he attended the event with his beautiful wife Lauren Hannaford

But isn’t he the RED Wiggle? Children’s entertainer Simon Pryce ditched his signature colour as he attended the event with his beautiful wife Lauren Hannaford

Also in attendance was Wiggles star Simon Pryce and his beautiful wife Lauren Hannaford.

Interestingly, Simon ditched his signature red look for the event.

Meanwhile, model and TV presenter Ksenija Lukich showed off her trim pins in corduroy shorts with a matching blazer. 

Suits her! Model and TV presenter Ksenija Lukich showed off her trim pins in corduroy shorts with a matching blazer

Suits her! Model and TV presenter Ksenija Lukich showed off her trim pins in corduroy shorts with a matching blazer

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