Bella Thorne, Victoria Justice talk about being good girls and growing up

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Stars strut down the runway for a good cause

Stars walked the catwalk for a good cause, dishing on some industry secrets before they headed down the runway.

NEW YORK – Bella Thorne ignited a mini firestorm when Candies published ads featuring the teen wearing a sexy fringe bikini and lacy bra.

But the Disney Channel star told us the criticism of her mature ads doesn’t faze her. After all, she's just growing up.

“I am in my seventeenth year and I am being me,” she told FOX411 backstage at the Heart Truth Red Dress fashion show in Manhattan on Thursday night.

Meanwhile, Nickelodeon star Victoria Justice explained to us just how she’s maintained her good girl image— as fellow young Hollywood stars like Justin Bieber and Miley Cyrus keep making headlines for their wild antics.

The key to her success has been her close family, she explained. Plus, it doesn’t hurt that the 20-year-old still lives at home.

“I feel very lucky to have a super supportive family that I still live at home with that keeps me grounded,” she said.

But the starlet was hesitant to dish out advice to other young stars, saying her lifestyle just works well for her.

“I’m just kind of taking it day by day and trying to do my thing and stay true to me.”

The "Victorious" star walked the runway alongside Thorne during the fashion event to raise awareness for heart disease.