Tammy Hembrow reveals the secret behind her bodacious booty as she shares gruelling glutes workout

She's staunchly denied rumours that her derriere has been enhanced by surgery.

And fitness model, Tammy Hembrow, 24, has sent a clear message to her detractors by revealing the secret to achieving her sizable backside lies in sweating it out at the gym.

The Gold Coast mother-of-two took to Instagram Stories on Wednesday to share her three-step workout plan for growing the glutes.

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In the process she also offered her 9.3 million followers a generous glimpse of her buttocks in tight activewear as she performed several exercise drills at the gym.

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Clad in a form-fitting hot pink crop top and a pair of shorts, Tammy executed a squat while holding a free weight with both hands in the first video.

She turned her backside to the camera and then lowered herself downwards- all the while offering viewers a generous look at her posterior.

That's peachy! Fitness model, Tammy Hembrow, 24, revealed the secret to achieving her sizable backside when she shared a series of workout demonstration videos to Instagram Stories on Wednesday

'These damn sliders always killing me': Tammy showcased her fitness prowess as she was seen performing a gruelling drill where she tucked her knees into her chest while her feet were placed on sliders

Breaking a sweat! In the third clip, the buxom blonde was seen performing a side squat where she moved rapidly from side to side while holding a round iron disc

In the next video, she tucked her knees into her chest while her feet were placed on sliders.

Tammy revealed she finds the move particularly challenging, captioning the clip: 'These damn sliders always killing me.'

In the third clip, the buxom blonde was seen performing a side squat where she moved rapidly from side to side while holding a round iron disc.

Internet sensation: Over the past five years, the Saski Collection founder has become an Internet sensation thanks to her dramatic body transformation and 'clean eating' lifestyle

The social media sensation performed the sweat-inducing move, which is aimed to help strengthen legs, glutes and the outer thighs.

Over the past five years, the Saski Collection founder has become an Internet sensation thanks to her dramatic body transformation and 'clean eating' lifestyle.

However fans have previously accused the fitness star of using surgery to help sculpt her booty.

Wow! The mother-of-two has transformed her backside and achieved an incredible waist-to-hip ratio in just a few years. Pictured left: in her late teens, and right: in a more recent photo

She recently rubbished the claims, telling Cosmopolitan magazine that being accused of getting butt implants is 'frustrating'.

'I don't want people to think they can't achieve a booty with hard work,' she said.

Speaking to New Idea in 2017, Tammy revealed she trains three to five days a week and prefers a combination of HIIT, weights and cardio.

She also emphasised the importance of eating protein-rich food and complex carbohydrates to maintain her flawless physique.

'For me lean protein like chicken breast, turkey and fish, really helps, but I find that with trying to build my booty I wasn't consuming the amount of protein I needed so supplements like protein shakes helped too,' she said.

'I needed to eat lots to build that area, so I also ate lots of complex carbohydrates like brown rice, oatmeal, potatoes and healthy fats,' she added.

'I eat every two to three hours!'

Tammy, who is the daughter of Australian film director Mark Hembrow, has two children of her own - daughter Saskia, two, and son Wolf, four - who she shares with her ex-fiancé Reece Hawkins.

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