Peta Murgatroyd, Maksim Chmerkovskiy choreograph fun dance

The couple is expecting their second child.

Peta Murgatroyd and Maksim Chmerkovskiy are showing off their best dance moves.

In a joint Instagram post, the "Dancing With the Stars" pros, who are expecting their second child, shared a fun video of the both of them performing a choreographed routine to "Pretty Girls Walk" by Big Boss Vette.

"Oh we're in this!!! Finally!!! Lt's go!!!" they wrote in the caption. "1) It's hilarious that we've waited for Peta Murgatroyd to be fully pregnant to start doing any dancing here."

"2) If you know Maksim Chmerkovskiy, you know he REALLY did NOT want to be part of this," they continued. "But if you actually know him you'll be able to see the exact move that changed his mind."

Murgatroyd and Chmerkovskiy announced last month that they're expecting "Chmerkovskiy #2."

"After 2 years of constant struggle and heartache, 3 miscarriages and a failed embryo transfer… we have a healthy bun in the oven," Murgatroyd wrote in an Instagram post at the time. "It was a shock to all of us and we found out right before I was going in for my second round of IVF."

Last year, the couple opened up about their experience with fertility struggles. Murgatroyd told People that she had suffered three miscarriages in the last few years.

The couple are already parents to a son named Shai.