Model Ashley Graham is doing some dance moves to put her unborn twin boys to sleep.

The expectant 33-year-old model shared a video on her Instagram Story on Wednesday that showed her dancing in front of the mirror wearing matching undergarments. At one point, the video zooms to show her baby bump as she continues wiggling her belly, People reported.

The former Miss Universe host said she was "rocking the boys to sleep."

Graham first announced the baby news in July when she shared a maternity photo taken by her husband, Justin Ervin, in an outdoor setting.

"The past year has been full of tiny surprises, big griefs, familiar beginnings and new stories. I'm just beginning to process and celebrate what this next chapter means for us," she wrote on Instagram at the time.

Graham and Ervin tied the knot in August 2010. They also share a son, Isaac Menelik Giovanni, who will turn two on Jan. 18 next year.

The couple disclosed news about the twin boys in a video shared on Graham's Instagram page Monday.  The short clip showed the moment the couple saw the pregnancy test, which confirmed Graham is pregnant with twin boys.

"Is that twins?" Graham asked before she shrieked in excitement. "Are you serious? We're gonna have three boys?"  

"You are kidding me!" Ervin said.

Graham previously told People that Isaac knows she is pregnant but the child has not yet fully grasped the idea of becoming a big brother.

"I don't think he understands the concept of being a 'big brother,'" the "Pretty Big Deal" podcast host said. "He knows that there's a baby in the belly. Because I say, 'Where's the baby?' And then he points and then wants to kiss it."

Graham also shared with the outlet how her body changed when she became pregnant for the first time.

"I think being in control when you're pregnant, it just gets thrown out the window," she said.

"And I learned that the hard way when I tried to control everything when I was pregnant with Isaac and I told myself that I was going to bounce right back because I was breastfeeding and everybody told me, 'Oh, if you breastfeed you're going to lose all the weight.' And I had a few honest women tell me you will never feel the same. So they were just blunt with me and sure enough, I haven't felt the same," Graham added. 

Ashley Graham Ashley Graham attends the 2019 Forbes Women's Summit at Pier 60 on June 18, 2019 in New York City. Photo: Jamie McCarthy/Getty Images