The big and reckless mouth of Jada Pinkett Smith usually creates the Smith Family drama.

Not this week.  

Will Smith's former assistant Brother Bilaal has set Smith-world on fire by claiming he walked in on Duane Martin having rough anal sex with Will.

"I open the door to Duane's dressing room, and that's when I see Duane having anal sex with Will," Bilaal claimed.  "There was a couch and Will was bent over on it and Duane was standing up killing him. Like murder. It was murder in there."

Will's reps have denied Martin, Will's longtime friend, ever committed crimes in Smith's anus.

They also suggested they may be suing Bilaal.

TMZ caught up with Will's estranged wife, Jada, this afternoon and asked her about the rumors.

"We suing," she said.