Jessica Simpson credits 'sex' as the secret to feeling good about her body

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Jessica Simpson: 'Women Dominate'

Good Housekeeping 125th anniversary

Jessica Simpson has a no-nonsense approach to feeling confident about her figure.

“Sex,” told the 36-year-old fashion designer to ET while promoting the Jessica Simpson Collection charity event at Dillard’s in her native hometown of Waco, Texas.

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However, when it came to spilling the secret behind her lasting marriage to husband Eric Johnson, she was a little more hesitant to share.

“I can’t give you that away or you’ll all have a sexy marriage like me,” she responded.

Simpson did, however, get candid on the simple ways she looks and feels red-carpet ready all the time. She credited her signature wavy blonde tresses to “Texas” and revealed that “family” is the reason behind her toned legs. Simpson also said a “push up bra” gives her chest the perfect boost it needs to rock risqué, dangerously low-cut dresses that showcase her slim shape.

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And while Simpson has been keeping busy these days running a successful fashion empire, all while being a hands-on mom to 5-year-old daughter Maxwell and 3-year-old son Ace, she hasn’t completely ruled out the idea of returning to music.

“Well, I can’t let all of my secrets out, but there is a lot of music that you are about to hear as soon as I want you to hear it,” she said.