Chris Brown Kisses Rihanna at VMAs, Pisses off Girlfriend
Sept. 8 2012, Published 2:19 p.m. ET
Karrueche Tran is Chris Brown's girlfriend, and according to reports, she is not happy.
OK! GALLERY: BEST DRESSED AT THE VMAS: RIHANNA, TAYLOR SWIFT, MILEY CYRUS AND MORE
Chris congratulated ex-girlfriend Rihanna on her win for Video of the Year with a kiss on the lips and an embrace at the MTV Video Music Awards on Thursday. Though there have been rumors swirling for quite a while that the exes have been, um, hanging out in secret, many were surprised by the public display of affection — none more so than Karrueche.
Want OK! each day? Sign up here!
"She felt the kiss was a public slap in the face," a source told Us Weekly.
OK! GALLERY: SEE THE WORST-DRESSED CELEBS AT THE VMAS
The girls have had words over Twitter, and following the PDA, Karrueche posted an Instagram pic that says simply, "Treat Your Girl Right."
"Karrueche and Rihanna really hate one another and Chris ultimately just does what he wants," the source said. "Seeing him with Rihanna at such a public event made her very angry."