updated 03/27/2013 AT 11:35 AM ET
•originally published 03/27/2013 AT 10:45 AM ET
The sisters were in town to promote Jessica’s fashion line at Charlotte’s Southpark Mall with the help of her daughter, Maxwell.
Jessica, who is expecting her second child with fiancé Eric Johnson, this summer, wore a black tank and black pants with studded black heels. Both girls ordered the same dishes for dinner; a filet and a slice of peanut butter mousse cake for dessert.
“Both sisters were in a great mood. They were very sweet,” an onlooker tells PEOPLE. “They were with their entire family – including the kids.”
Come to Belk in the Southpark Mall to see @ashleesimpson and me! Hellllllllo Charlotte, NC!
Jessica Simpson (@JessicaSimpson) March 23, 2013
– Jennifer Garcia
— People magazine (@peoplemag) August 7, 2012