"Dancing with the Stars" professionals Maksim Chmerkovskiy and Peta Murgatroyd are great on the ballroom floor, but it's a whole other story when it comes to the classroom!

The engaged-and-expecting lovebirds were kicked out of their first Lamaze class on Saturday, Dec. 3, 2016.

Maks documented the aftermath with a giggly Instagram video, as the couple walked to their car just after getting the boot.

"Baby, what just happened? What did we do," he asked his 35-weeks pregnant fiancée, who couldn't help but crack a mischievous smile and let out a laugh.

"We got kicked out because Peta was misbehaving and not listening to anything. That's what happened," the 36-year-old Ukrainian dancer explained. "This baby is going to be a disaster."

In the Instagram video's caption, Maksim jokingly referred to his baby mama as the, "worst student in class." But, he admitted that it was super-long and felt #traumatized by being, "shown waaaaaaaay too much stuff."

Maks popped the question in December 2015, in the middle of his "Sway: A Dance Trilogy" performance in Miami.

The duo, expecting a boy, announced their baby news in May. The New Zealand native, 30, has been sharing updates on her Instagram.

Oiling this buttercup up 👶🏻 33 weeks.

A post shared by Peta Murgatroyd (@petamurgatroyd) on

We wouldn't be surprised if this kid was born knowing how to cha-cha.