Chris Brown was "making out" with Amber Rose - while his date looked on.
The 'Run It' star locked lips with the model - the ex-girlfriend of Kanye West - at P. Diddy's White Party in Beverly Hills on Saturday night (04.07.09), despite arriving at the bash with 18-year-old singer Teyana Taylor.
A source told the New York Daily News newspaper: "Diddy announced the DJ would be performing a tribute to Michael Jackson. Chris did an amazing impression of Michael's moonwalk. It wasn't long before he was dancing with Amber.
"They were holding hands and making out in The Shadows. She had her hand on his leg."
Taylor was said to be "irked" by her date's behaviour, but still accompanied him to an after-party at Guy's nightclub - only for Chris to continue to pursue the 26-year-old beauty.
The source added: "They were kissing on the dance floor in front of Teyana. But he and Amber left separately."
Last month, Chris received five years probation after pleading guilty to assaulting former girlfriend Rihanna.