Jessica Simpson's daughter Maxwell, 2, and son Ace, 10 months, ride matching pink toy cars Credit: Courtesy of Jessica Simpson

Can't handle the cuteness! Jessica Simpson shared an adorable new Instagram picture of daughter Maxwell, 2, and son Ace, 10 months, going for a little cruise around their neighborhood—in matching pink toy cars!

"Ace and Maxi looking like twins!" the 33-year-old gushed on Tuesday, May 20. "And yes, they share pink cars :)"

Simpson and fiance Eric Johnson's tots are sitting pretty in their eye-catching cars for their sweet snapshot, as they stare into the cameras with their big blue eyes. Maxwell is riding along next to her little brother as Ace appears to be getting some assistance while sitting behind the wheel.

Maxwell and Ace are sure to play a special role at their parents' long-awaited wedding in two months. As exclusively reported, Simpson and the former NFL player are set to wed on July 4 in Santa Barbara, Calif.

"It will definitely be extravagant," the bride-to-be told Today's co-host Savannah Guthrie on May 19. "I don't do things small."

"We are very close to sending out our invites," she said to USA Today earlier this month. "I've been very picky on how I want everything to look and feel. Eric's family alone is almost 90 people, so it'll definitely be a big event."