Sophie Simmons is taking it off — and opening up to ET about her first lingerie photoshoot.

The 23-year-old daughter of Gene Simmons and Shannon Tweed opened up exclusively to ET’s Deidre Behar, where she revealed the first photos from her lingerie campaign for Adore Me, and told us what inspired her to strip down for the sexy photoshoot.

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“I never really thought anyone would even consider my body type for lingerie,” Simmons revealed, saying that it was Adore Me that had the confidence in her, and approached her for the shoot. “I have to thank Adore Me for putting that opportunity in front of me.”

Although the model stripped down for a nude photoshoot last year, Simmons shared that it took a lot for her to finally accept her body. “I wasn’t always comfortable with it, and I think that’s why I love my body now,” she said.  “I really hated my body and I didn’t understand why I didn’t look like the women in magazines.”

Ultimately, it was Simmons’ model mother that finally helped her recognize her own beauty. “My mom sat me down and told me the secret to which I build all of my body confidence on,” she explained. “She said, ‘You only have this one life and this one body, why would you spend your time hating it?'”

And while the former Gene Simmons: Family Jewels star admits she worked out for in preparation for the photoshoot, she didn’t lose any weight. “I trained for four weeks leading up to the shoot,” Simmons said, revealing that daily workouts and a pre-measured meal plan were her secret weapons for getting in shape. “I actually did not lose weight but I did lose inches…and that’s where the results really mattered for me. It meant I was replacing fat with muscle.”

As for advice to other women on accepting their bodies and working what their mamas gave them? “I truly believe that women can look and feel great at any size. I just urge people to make sure, whatever size they are, that they are healthy starting from the inside, working your way out.”

For Simmons, it certainly shows. Lookin’ good, Sophie!

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While Simmons just landed her first lingerie campaign, it’s not the first time she’s stripped down for the camera. The star posed nude last year after undergoing a major body transformation. See more in the video below.

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