The world knows what went on between [lastfm link_type=""]Chris Brown[/lastfm] and [lastfm link_type=""]Rihanna[/lastfm] back in 2009 but apparently Chris, “U DA ONE” for Rihanna. Chris has been dating aspiring model Karrueche Tran and she’s well aware he’s been cheating!

Chris Brown sources say, “Karrueche thinks Chris’ studio is where most of the hookups have taken place.”

Sources from Tran say, “Chris is a really passionate guy… He’s still a hothead and he does what he want. He’ll go off the grid and she’ll wonder what’s going on, but at the moment Chris and Karrueche are still a couple.”

Chris Brown’s reps have denied the two are sneaking around but did you see their love tweets to each other.