Jessica Simpson has reportedly lost 3.5 stones since giving birth to daughter Maxwell, but there’s no “target weight” other than Jessica just wants to look like a “sexy mommy” year round.

From websites like Maxishop you can get training and general nutrition tips for fantastic, long lasting results and to learn how to increase definition, tone up or power your workouts.

Jessica’s trainer Harley Pasternak told Hollyscoop exclusively, “You know what she looked like when she gave birth. She lost weight every single week in a really, healthy and sustainable way. This is part of her lifestyle now. This is going to be Jessica forever.

Being balanced and eating well and exercising in a realistic amount. It is not tied to a specific project coming up or a movie or a music video. This is just Jessica wanting to be a sexy mommy.”Harley is responsible for the exercise portion of Jessica’s weight loss plan, she’s not relying ONLY on weight watchers for her drastic weight loss.

“Weight Watchers does a great job with her diet and she comes here to get her butt kicked 4 days a week,” Harley tells us, “[She’s] sculpted and toned and tightened.”

Jess’s workout plan is pretty cut and dry, according to Harley, she works out for 45 minutes each session, maximum 3-4 hours a week.

Also, Jess’s trusty pedometer is a MUST for getting into shape, according to Harley.

“At the end of the day she tells me how many steps she has taken and we go from there. Everyone needs a Pedometer. It makes you aware of how active or inactive you are being.”

Jessica just posted a photo on her blog from the set of her second Weight Watchers commercial, which will showcase her entire body and not just her face like the last one.

If you want to train with the same guy responsible for some many of Hollywood’s hottest bodies, you can pick up the new video game for XBOX and Wii, “Harley Pasternak’s Hollywood Workout.”

Pasternak is your own personal trainer who whips you into shape with his signature 5-factor Fitness program, the same program he uses for his celebrity clients.

By Madison Vanderberg /