Bella Hadid
Credit: Christian Vierig/Getty

Bella Hadid’s abs look like they could grate cheese, but the 20-year-old says there was an unintended side effect of logging those hours in the gym: She lost her curves. “I really didn’t mean to [lose weight],” she told People at her Victoria’s Secret Fashion Show fitting.

“Like, I want boobs. I want my a— back. But it’s not my fault. My weight fluctuates and so does everybody’s and I think that if people are gonna judge, that’s the worst you can possibly do because everybody is different.”

While the model says she lost her curves “accidentally,” there is a reason behind her changing bod. “I worked out so hard and everybody is like, ‘Oh, she looks so skinny blah, blah, blah,” she said. “But I think that if you just stick to something you can really achieve so much. I’ve been eating hard protein every day and working out for three hours every day. It’s crazy but I think that, you know, if you set your mind to something, I think you can succeed.”

VIDEO: 10 Times Bella Hadid Rocked the Runway

And succeed she has: Hadid just booked her first-ever Victoria’s Secret Fashion Show. She’ll rock not one but two different looks on this year’s Paris runway, but that doesn’t mean her insecurities have gone away.

“It’s crazy because I think that when other people look at all of the VS models or all of the girls [who] are walking, they’re like, ‘They’re not human. They don’t have any insecurities.’ But I think every single girl [who’s] going to be walking probably has an insecurity,” she said. As for Bella, that insecurity has to do with her booty. “I wish my ass was bigger.”

But she’s not letting that stop her from taking the catwalk by storm in her lingerie. Watch the Victoria’s Secret Fashion Show when it airs Dec. 5 on CBS.