Jessica Simpson is said to find it difficult to "tone up" her stomach.
The 33-year-old actress has worked hard to lose weight following the birth of her son Ace last June, who she has with fiancé Eric Johnson. Before this she tried to slim down after welcoming the couple's first child, daughter Maxwell. Although she is noticeably trimmer now and is thought to have shed an impressive 56lbs., Jessica is believed to still feel insecure about certain areas of her body.
"Jess has hit her goal size and is thrilled her hard work has paid off. She's the slimmest she's been in years, but has told pals she still wouldn't wear a bikini. She's found her stomach hard to tone up," a source told British magazine Closer. "She's working out five times a week with her trainer doing squats, crunches and arm weights. She also runs every day and goes hiking with Eric."
It isn't just her exercise regime that the blonde star is said to be focusing on. Jessica is also said to have a personal chef to keep her diet healthy and ensure she doesn't stray while eating the right things.
"When Jessica eats out, she'll send a picture of the menu to her trainer who will advice her what to order. She's determined to get her body to its best," the source added.
Jessica regularly shares snaps of her workouts on Instagram. Last month she posted a photo of herself on a treadmill next to her friend and she explained how Weight Watchers, which she is an ambassador for, helped her get trim.
"When I started Weight Watchers, I didn't know what to expect at the meetings but I really love going, I do," she says in a new advert for the company.
"It reminds me we don't have to do this alone. It's so much better to have some back up and to do it together because we all face similar challenges.
"The meetings keep me focused and motivated and I have a new found determination that I'm really proud of. I can honestly say I've never been happier!"
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