Rihanna and Chris Brown’s girlfriend Karreuche Tran are rumored to be having an Internet war. The rumors say that the two have been sending each other subliminal messages since Rihanna’s rumored reconciliation with Chris Brown.

The buzz started after Rihanna twitted a picture of some rice cakes with gold hops and sun glasses and called them “dry”. Automatically fans began to say that this was her way of making fun of the fact that Karreuche is Vietnamese. Chris Brown’s representative says that he is happily in a relationship with Tran and that he is not cheating with Rihanna.

EW reports that Karreuche said that she does not have a Facebook page and is not responsible for the comments made using her name.

Is she a good Twitter girl gone bad? Rihanna has taken to the 140-character site to offer up a steamy image of herself on Wednesday — in which she strikes a strategically covered-up topless pose with the message, “Where have you been all my life?!”

The post has sent already-wagging tongues into overdrive, wondering if this is just another part of her alleged feud with Chris Brown’s current girlfriend, model Karreuche Tran.

Last week, the songstress tweeted a feasibly harmless but potentially offensive picture of a packet of rice cakes dressed up in hoop earrings and shades with the caption, “Ima make you my b****.” Rihanna’s followers made the obvious link to Tran, who is half-Vietnamese.

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