Roxy Jacenko has taken a dig at husband Oliver Curtis while wishing him a happy 39th birthday.

The PR maven, 44, took to Instagram on Thursday to share a shot of the couple to mark the auspicious occasion - and told her rarely-seen spouse it was time for him to embrace cosmetic surgery.

The pic showed Roxy standing next to Oliver, who was playfully flashing a peace sign, with her iPhone aloft.

Roxy wore a simple, white spaghetti-strapped dress with frill finishes that ended above the knee.

Roxy acessorised with a  gold Omega necklace around her neck and a considerable amount of bling on her wrists.

She finished the ensemble with a pair of dark Ray Ban sunglasses and what appeared to be a pink vintage 2014 Kelly 25 handbag that, pre-owned coms with a formidable $51,000 price tag.

Oliver, meanwhile looked equally stylish in a dark blue shirt and a simple pair of white chinos.

He also wore a pair of dark sunglasses and was clutching a white AirPods Max carrying case.

Captioning the photo, Roxy suggested that her hubby might want to look for some outside help in keeping a youthful appearance.

'Now you are 39 my friend, time to make a Botox [appointment],' she wrote. 'Should've got you that for your birthday present.'

Fans were quick to comment on the birthday snap, writing, 'No he don't he looks lovely.'

Another, commenting on their sartorial style replied with a simple: 'Barbie and Ken.'

Roxy and Oliver's daughter Pixie, 12, also took to social media on Thursday to wish dad a happy birthday with two adorable throwback pics.

The first showed a much younger Pixie holding onto a flower-patterned umbrella in London, standing next to Oliver whose arms were filled with shopping bags.

The post also showed smaller throwback images of Oliver with Pixie and son Hunter, 10.

Sweetly captioning the adorable throwback pic, Pixie wrote: 'Happy Birthday dad. i love you.

A second post showed Oliver, Pixie and Hunter sitting happily  on what appeared to be Oliver's bed in front of a silver Happy Birthday helium balloon display.

The birthday snaps come as the family is having the time of their lives on a luxurious European getaway.

Last month, Roxy, Oliver, 38, and her family enjoyed the sun in Saint-Jean-Cap-Ferrat in the south of France.

The couple were spotted on a rare outing together, enjoying ice-cream with their kids on a jetty in the up-scale tourist spot.

The happy family tucked into their sweet treats before boarding a small boat to take them to the private yacht to sail around the South of France.