When quizzed by a local publication about Jessika, 27, spending in excess of $25,000 to cosmetically enhance her face and body, 30-year-old Tamara's response was brutal.
"Babe, just go to the gym!
Hinting that Jessika was out of shape, she added, "Do some squats - you'll be fine."
Tamara's scathing attack on Jess comes a week after the polarising blonde shared a gruesome Instagram story of herself getting lip fillers.
She'd previously had a procedure to remove a botched enhancement.
"Yay I have my lips back but they're not sausage lips anymore, so Bunnings you can keep your snags," she joked to her followers.