Celebrity trainer and nutrition expert Harley Pasternak praises actress Jessica Simpson for her "toned" legs.

Pasternak has worked with stars such as Halle Berry, Lady Gaga, Robert Pattinson and Robert Downey Jr. He's also authored books like "The Body Reset Diet" and "The 5-Factor Diet".

Simpson, a mother of two, has been Pasternak's client for nearly eight years, reports people.com.

"Jess has stuck to her Weight Watchers diet, walks 10,000 steps per day and has been incredibly consistent with our workouts. Most notably, Jess has outstanding legs. They're toned and sexy in all the right ways", said Pasternak.