The talk show co-host chats about her body makeover.

KELLY RIPA reveals in the latest issue of Fitness, on stands now, some of her secrets for looking so good.

"For the first time, I have muscles!" the 37-year-old co-host of ABC's "Live with Regis and Kelly" proudly tells the magazine. "I am totally hooked on this sculpting class ... it's transformed my body in ways I never thought possible."

Kelly adds that she's also been getting a lot of support from her husband, MARK CONSUELOS, when it comes to her new fitness kick.

"The great thing about Mark is that he's so encouraging," she says. "When I was pregnant with my first son and I gained 68 pounds, Mark made me feel like the Queen of Sheba everyday -- 'You're so beautiful, you're so gorgeous.'"

But the married mother of three does admit to a few confidence-boosting tricks. "I buy jeans that are tight in the read end," Kelly says. "I'm not kidding. I treat my cheeks like breasts in a push-up bra."