She underwent a physical transformation when she shed a whopping 10kg after appearing on The Bachelor in 2014.
And Lisa Hyde sparked rumours of another image overhaul on Thursday, after she flaunted her noticeably generous cleavage at the Uber x Red Cross fashion Show.
Proudly showing off her ample assets in a plunging gown at the Sydney event, the 30-year-old sparked speculation that could have undergone a breast augmentation.
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Has Lisa Hyde had a boob job? Bachelor In Paradise star, 30, sparked breast augmentation rumours after showing off her VERY ample cleavage (left, on Thursday and right, in 2015)
The Queensland Beauty, who had an already-full cleavage while on The Bachelor, appeared to display an even bigger chest on Thursday.
Daily Mail Australia has contacted Lisa for comment.
It's not the first time Lisa has wowed the public with her appearance, as she left fans open-mouthed in 2015 after unveiling her dramatic 10kg weight loss.
Lisa admitted she had piled on the pounds in the Bachelor mansion and so, when the show ended, she decided to work out 'as much as possible'.
What's her secret? The Queensland Beauty, who had an already-full cleavage while on The Bachelor in 2014, appeared to display an even bigger chest on Thursday