Since Chris Brown split from Rihanna a few weeks, he's technically a free man. But several new reports have indicated that the Fine China singer has attempted to rekindle his relationship with ex-girlfriend Karrueche Tran, and that the couple even kissed at a Billboard Music Awards after party.

The Hollywood Life reported that Tran and Brown attended an after party at the Bank nightclub at the Bellagio hotel in Las Vegas on Sunday night. Sources said that the couple was there to have a good time after Brown performed at the music awards. They were reportedly dancing and showing each other lots of PDA at the club. 

"Brown was standing on the banquette dancing with Tran," a source said. "He bent down a few times to kiss her, and kept running his hand through her hair and singing to her."

Enstars reported Monday that Tran and Brown attended the awards show together, while Rihanna dined at a restaurant in Santa Monica. Although the Nobody's Business singer was nominated for ten awards, she decided not to show up. Nonetheless, she took to her Instagram account to thank Billboard for the recognition.

Meanwhile Tran and Brown were spending time together in Vegas.

"Chris Brown sent Karrueche to the Billboard Gifting Lounge presented by Kari Feinstein PR at the MGM in Las Vegas on Sunday. They arrived together, and then she stepped out of Brown's trailer into the lounge. Later she was his date to the show. She loved the Vix bikinis and Vega crystal necklaces," the source said. 

The two have become more close since Brown and Rihanna called it quits, and sources revealed that Brown is the one pursuing Tran. 

"He's been initiating contact with her, not the other way around. I wouldn't say Karrueche and Chris are together but they are talking and kicking it," the source said. 

Tags: Karrueche Tran Chris Brown billboard music awards 2013