UPDATED June 9 at 6:01 p.m. ET

With every Instagram photo she posts, Jessica Simpson keeps getting fitter!

The blonde bombshell posted this shot over the weekend while she celebrated the baby shower of one of her dear friends.


So how is the mother-of-two staying in shape nowadays? We've got the details below!

Originally posted May 28 at 10:49 a.m. ET

With a huge Santa Barbara, Calif., wedding in the works for July 4, Jessica Simpson is doing just about everything to keep the weight off!

Insiders reveal in the new issue of Life & Style that in addition to her strict Weight Watchers diet and regular workout schedule with trainer Harley Pasternak, she’s walking six miles a day!

“She’s incredibly proud of the way she’s stayed on track,” an insider tells Life & Style.

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Walking that much means dedicating a lot of time to her treadmill.

“She’ll watch TV on it, talk on the phone,” the inside source shares with Life & Style. “Jess probably spends half the day there.”

The bride-to-be has gone from 175 pounds to a slinky 110 pounds — just six months after baby. And with her wedding day approaching, she’s sticking to her Weight Watchers meal points and doing squat-and-lunge sessions with her trainer “three to five times a week,” according to Harley.

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“Jessica has gotten her best body ever,” an insider close to Jess tells Life & Style. “She truly feels like she’s in better shape than she was in her early 20s.”

For more inside Jessica’s amazing weight loss and to see before and after photos, pick up the new issue of Life & Style, on newsstands now.