'Old school crew': Roxy Jacenko stuns in geometric frock as she catches up with old friends as she attends surprise wedding in Sydney

She's the Sydney PR queen whose husband Oliver Curtis is currently in jail for insider trading.

But on Wednesday, Roxy Jacenko was in good company as she attended a friend's surprise wedding in Sydney.

The 36-year-old mother-of-two took to Instagram with cheery snaps catching up with old friends.

Looking radiant: Roxy attends a friend's wedding on Wednesday night 

Leaning against a tanned friend, she appeared in high spirits as he placed his muscular arms around the publicist's slender waistline at the dining table.

Roxy has since deleted the late-night post, which included a love heart emoji beside her newlywed friends handles and her friend Elon Zizer's handle in the caption.

She continued to document the night through the use of Instagram Stories, tagging her old friends and commenting: 'good times' and 'old school crew.'

Having fun! Roxy appeared to be in high-spirits at the event as she continued to document the night through the use of Instagram Stories, tagging her old friends and commenting: 'good times' and 'old school crew'

Shock! Roxy's night turned into a surprise celebration, after the invite to her friend's engagement party turned into a wedding in Sydney's Double Bay

Roxy's night turned into a surprise celebration, after the invite to her friend's engagement party turned into a wedding.

The blonde beauty stunned in a geometric-print dress that clung to her gym-honed frame, posting with the mystery male more than once.

It's uncertain of the pair's defined relationship or whether they arrived together at the event.

Daily Mail Australia has reached out to Roxy for comment.

Stunning! Roxy's makeup look consisted of a smokey eye, defined brows, a dusting of blush and a nude lip colour

Earlier that day, the PR maven had visited a Sydney salon to tend to her luscious tresses by getting more extensions.

Showing off her new lengthened locks at the event, she chose to wear her hair down in a straight style.

Roxy's makeup look consisted of a smokey eye, defined brows, a dusting of blush and a nude lip colour.

Fresh new tresses! She chose to show off her new blonde extensions at the event, by wearing her hair down in a straight style

Last year, Roxy's husband Oliver was sentenced to two years in jail for insider trading.

The Sweaty Betty owner has sparked rumours of a split in recent months after choosing to ditch her wedding ring on numerous public occasions. 

The couple share two children, Pixie, five, and Hunter, two, who have been kept away from their father since he was sentenced. 

Happy family: Roxy shares two children, Pixie, five, and Hunter, two, with husband Oliver Curtis

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