PR Queen Roxy Jacenko took to social media on Saturday to show off the results of her recent weight loss. 

The 44-year-old mother-of-two posted a sultry selfie in which she can be seen posing in a skimpy red bikini.

The revealing two-piece from the Hunza G brand made the most of Roxy's slender beach ready body and showed off her flat and toned tummy.

Roxy wore her hair out for the Instagram snap and accessorised with a gold necklace, matching bangles and what appeared to be diamond earrings.

The PR maven's followers were quick to send messages of support for Roxy's style, with one writing, 'You look amazing gushed'. 

'Wow you look gorgeous Roxy' said someone else with one more admirer chiming in, 'You hot thing'.  

In April, the star revealed she had reached her goal weight after shedding 15 kilograms.

In the post, the Sweaty Betty owner showed a picture of her scales revealing her current weight of 51.9kg.

A subsequent update showed a picture of a bag of Krispy Kreme doughnuts, along with a claim she would be eating them as a treat for reaching her goal.

Prior to that, Roxy unveiled her astonishing weight loss to social media, along with details of the strict diet she used to shrink her frame.

That plan included a lunch which consisted of grilled chicken, quinoa and vegetables covered in balsamic vinegar.

She then revealed what she has for breakfast - one cup of coffee and a container of powdered vitamins from a trendy supplement powder company.

In her caption, Roxy claimed she 'hasn't felt sluggish in four months' after taking the vitamin blend on a daily basis.

For dinner, Roxy said she eats just a plate of broccoli smothered in garlic and oyster sauce, and for a sweet snack she treats herself to two passionfruits.

The mother-of-two, who is now based in Singapore, shared a photo of herself looking very svelte in black shorts and a sports bra while working out at the gym.

Roxy also gave her fans an update on her alcohol consumption, revealing she had finally ditched the booze altogether.