Amber Rose was hard at "twerk" recently and Chris Brown was the lucky benefactor of it. The Internet is in a tizzy over a video that shows the nearly divorced model-actress backing that ass up on the R&B crooner.

It all went down at the Supper Club in Los Angeles on Thursday (Dec. 18). According to E! Online, the club was hosting "Studio Thursdays," an event where fans can witness an "intimate concert experience" from a different artist each week.

Apparently, Rose was in the house with her date, Blac Chyna, who recently split from her ex-boyfriend Tyga so those two have a lot in common.

While Breezy was onstage, Wiz Khalifa’s ex-wife decided to back her goods up on Breezy while the song 'Back That Azz Up' was bumping through the speakers. Acting all nonchalant, CB sat back and enjoyed the bootylicious ride.

Then Chyna jumped onstage and Rose gave her booty a couple of love slaps in front of the roaring crowd.

An insider told E! News that Rose and Brown were joking around afterwards and didn't take the twerking session seriously.

Honestly, Rose looks fabulous in her tight white leggings and top. A year after giving birth to her baby boy, Sebastian Taylor Thomaz, the 31-year-old blonde bombshell still has the goods.

Watch the video above.

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