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OTRC: Amber Rose expecting first baby with fiance Wiz Khalifa

Wiz Khalifa and Amber Rose, who is pregnant with their first child, arrive at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Jordan Strauss)

Amber Rose is expecting her first baby with fiance Wiz Khalifa and debuted her massive baby bump at the MTV Video Music Awards on September 6.

"We found out this summer, and it was more of a celebration than anything," the rapper told MTV backstage at the September 6 Awards show. "I did a back flip - she was doing this little dance that we made up."

"It's called the monkey butt dance," Rose added.

"I've been pretty focused my entire life, and now that I have a family, I'm just going to keep that focus, but it's going to be a family focus," Khalifa told the network.

Khalifa, a 24-year-old rapper who is likely best known for his single "Black and Yellow," said during the VMA ceremony that the baby is due in six months. The pair announced their engagement on Twitter in March.

Rose, a 28-year-old model, Tweeted on March 1 with a photo of the engagement ring, "He has made me the Happiest Woman in the World!!!!"

Rose previously dated rapper Kanye West on and off between 2008 and 2010. She made headlines in January when she called Kim Kardashian a "home wrecker" and claimed the reality star was one of the "main reasons" for her breakup with Kanye West.

She later said she regretted making that statement. "I feel bad for calling her a home wrecker, even though what happened in the situation," Rose said in an interview on the New York radio station Power 105.1 "I'm all about women empowerment and I feel like I stooped down to her level by calling her a home wrecker. I didn't want to do that."

Rose released her debut single, "Fame," which features Khalifa, on January 11. (Listen to it here on his website - warning: post contains explicit language).

Rose and Khalifa began dating in late 2010 and stepped out publicly together in Los Angeles around December of that year. Rose said that for their first date, the couple went running before dining on turkey burgers at Mel's Diner.

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