Rumor: Chris Brown Hooks Up with Amber Rose

Chris Brown likely scared off some girls by beating Rihanna to a pulp.

Amber Rose apparently isn't one of them.

Brown and Kanye West's ex reportedly locked lips at the July 4 White Party thrown by Sean (Diddy) Combs and Ashton Kutcher in Beverly Hills, Calif.

The embattled singer arrived at the party with singer Teyana Taylor, his Rihanna look-alike pal, but is said to have hooked up quickly with Amber Rose.

"Diddy announced the deejay would do a tribute to Michael Jackson," said a guest to the New York Daily News. "Chris Brown did an amazing impression of Michael Jackson's moonwalk. It wasn't long after that before he was dancing with Amber."

Later, the pair nestled on a couch in the back yard.

"They were holding hands and making out in the shadows," said a witness. "[Amber Rose] had her hand on his leg." Wow, get a room, you two!

Is Chris Brown moving in on Kanye's ex, Amber Rose? [Photos: Fame Pictures]

Teyana Taylor is said to have been irked by the amount of time Brown spent with Rose, but still accompanied him to an after-party at the club Guys.

There, Brown again got upclose and personal with Rose again, kissing her on the dance floor in front of Teyana. But he and Amber left separately.

Some wondered whether Chris Brown's blatant display with Amber Rose was a defiant message both to Rihanna and Kanye West. Rihanna dumped Brown, who last month pleaded guilty to assaulting her at what was to be his preliminary hearing.

West, who has said he was "devastated" by Brown's attack on a woman who was like "my little sister," has run hot and cold on Rose lately. Although he reportedly broke up with her last month, they were back together at the BET Awards.