By Daily Mail Australia Reporter
Published: 02:52 BST, 5 July 2019 | Updated: 03:25 BST, 5 July 2019
She's one of the most popular fitness stars on Instagram, known for her popular Keep it Cleaner weight loss program.
And while Steph Claire Smith has transformed her body with exercise over the years, some fans are wondering how she managed to also boost her cup size.
What's her secret? Steph Claire Smith's scantily-clad Instagram posts have caused a stir among her followers, after she seems to be displaying noticeably larger breasts compared to her old modelling photos. Pictured left in 2017 and right in 2015
Fitness fanatic Steph prides herself in body confidence and that's clear to see across her social media page.
Her Instagram is littered with body confident snaps that see her pulling provocative poses in either her beachwear, gym gear or lingerie while teasing her cleavage.
Although, her ample chest size seems to differ dramatically from her early modelling days around four years ago.
Busty: Her Instagram is littered with snaps of herself pulling provocative poses in either her beachwear, gym gear or lingerie that teases a look at her cleavage
Steph was just as keen to flaunt her envy-inducing frame back then as she is now, but her plunging necklines seem to be revealing much more than they used to.
The change hasn't gone unnoticed by Steph's fans, with one commenting her bust looks 'amazing' in a behind-the-scenes shot she