Chris Brown and Karrueche Tran back together?

Chris Brown and his ex girlfriend Karrueche Tran engaged in a very raunchy Twitter exchange on Saturday and it appears the rumors that they are back together may very well be true.

Chris Brown, 24, was involved in a minor car accident on Tuesday in Los Angeles after he rear ended another car, and none other than Karreuche Tran, 24, was seen standing with him at the scene.

In one shot, Chris Brown is seen with a stormy look on his face as he stands to the side while the blonde female whose car he hit talks next to him on her cellphone.

The singer wore a black sweater, baggy grey sweatpants and white trainers, accessorizing with layers of gold chains around his neck.

Model Karreuche tran, meanwhile, wore ripped jeans and a blue top as she played an active role on the scene, taking pictures of the dented car with her cellphone.

The new pictures certainly add fuel to the rumors that the former couple is giving their relationship another go.

Celebrating her birthday on Saturday, Karrueche Tran made the somewhat bizarre move of posting a picture of herself with Chris Brown on her Instagram page.

Alongside the candid picture, Karrueche Tran wrote: “TBT my birthday last year. Who’s face am I gonna put my a** in this year? Lmao I’m kidding.”

And it was obviously a happy memory for Chris Brown, as he responded to her unusual Twitter gesture with the tweet: “Happy bday @karrueche.”

Karrueche Tran then sent a simple reply of her own, a heart, adding yet further fuel to rumors the pair are thinking of reuniting.

A source told Hollywood Life: “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.”

Karreuche Tran was left disappointed last October when Chris Brown ended their relationship to get back with his former flame Rihanna.

But just months after confirming his reconciliation with Rihanna, Chris Brown announced that they had split again during an interview with Australian radio hosts Kyle & Jackie O Show.

Chris Brown said: “The way I look at it is, I’m always going to love that person, but people have differences, and people have different wants and needs, at the end of the day she’s a young girl.”