Sonia Kruger shows amazing bikini body on Instagram

The Big Brother host rarely posts bikini photos online but when she does her fans are quick to point out her “youthful” looks.

Sonia Kruger has shown off her youthful figure in a rare bikini snap.

The Big Brother host has an Instagram page filled with glamorous shots, training tutorials and images of her five-year-old daughter Maggie.

She rarely posts bikini photos, but when she does it immediately garners a huge reaction.

The 54-year-old flaunted her “ageless” figure in a ruffled floral miniskirt and white bikini top as she posed alongside a pool.

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Sonia Kruger, 54, flaunts her toned figure in a white bikini top and ruffled floral miniskirt. Picture: Instagram/SoniaKruger

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She posted the photo — that showed off her toned arms and abs — on Thursday night on Instagram saying it was time to start working on her “summer body”.

“If Summer bodies are made in Winter we better hop to it,” she captioned the image while promoting her fitness program Strictly You.

The mother-of-one topped off the outfit with a large, round pair of gold-rimmed sunglasses with her blonde locks pulled back.

“How do you look so amazing, you ageing backwards,” one fan wrote.

“How are you 54,” another asked.

“You’re looking trim taunt and terrific Sonia, such an awesome lady,” a third person wrote.

The dancer and TV personality says people think she’s at the gym everyday but her workouts are mainly done at home.

Fellow TV host, Belinda Russell of Today Extra demanded she has a “summer body every season of the year”.

Kruger told news.com.au recently that much to people’s surprise, she hardly goes to the gym.

“I think that’s the common misconception. People look at me and think I’m training everyday at the gym, everyday of the week and I am not,” she said.

“Even when I was training with Dan (her personal trainer) I was supposed to be there twice a week and most weeks I’d only make it one day.”

Her fans are often blown away by her ‘youthful’ looks and figure.

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Instead you will find her doing home workouts.

Kruger, who turns 55 next month, announced the launch of her dance-based fitness and diet program, Strictly You, last September.

She was inspired after people kept asking her the “secret” behind her incredible figure.

“My workouts now are at home, in the loungeroom and it’s with music or if I’m with my friends on a Friday night and we’re having a big glass of wine, I’ll make them dance,” Kruger told news.com.au at the time. “I’m that person that’s always trying to teach people how to do a cha-cha.”

The program combines dance, exercise and nutrition with full body workouts taking less than 25 minutes to complete.