Chris Brown 'New Girlfriend' Blair Pena? PHOTOS: Karrueche Tran 'Calls Out' Model Friend on Twitter, 'Thirsty Much?'

Earlier this month, Chris Brown was spotted "flirting" with Karrueche Tran's good model friend, Blair Pena. It appears that Rihanna's ex beau's been spending a lot of time with this new beauty recently... and his "current" girlfriend is NOT happy about it! Hmm, does Tran think Pena's acting a little "too thirsty?"

As Mstars previously reported on June 17:

MediaTakeOut.com claims that Chris Brown has "dumped" girlfriend Karrueche Tran... for another sexy model (who just-so-happens to be Tran's good friend)! Breezy's apparently been getting "flirty" with an aspiring model named Blair Pena. Tran recently jetted-off to Miami for some nightclub appearances... meanwhile, Pena's been hanging out with the "Fine China" crooner in LA. The evidence is all over Twitter... is something more serious going on between the two, or are they just good pals.

MTO is known to stir-up ridiculous relationship drama, but sometimes the infamous gossip webloid ends up being right... here's what MTO is saying about Brown "dumping" Tran:

"So why do we speculate that [Pena's] dating Chris - well, there are just TOO MANY COINCIDENCES. First, the streets have been WHISPERING about Chris and Blair for a minute. But what really got our ears PERKED UP was when she flew into Los Angeles on Friday - the same day that Karrueche was flying to MIAMI for some club appearances." 

Breezy and Pena were hanging out A LOT over the weekend... they partied at Brown's crib and Pena even snuggled with Brown's pet pup.

@msblairr: "My new dance in the club! @Chrisbrown."

@msblairr: "I'm Jamaican mannn!!"

@msblairr: "Love this dog! X!"

And proof that Tran and Pena are friends...

Still, if fans take a closer look at Pena's Twitter, it appears she might already have a beau of her own too... 

And here's Pena's Model Mayhem page.

From Rihanna to Tran to Pena... what do readers think about Brown's ever-changing relationships status?

Things cooled-down for awhile... but then Pena was spotted pumping gas in Breezy's car! Here's what she posted on June 28:

@msblairr: "#la I pump my own gas!!!"

Yup, looks like Breezy's ride.

And that same day, Tran tweeted:

@karrueche: "Would you like some water baby girl?"

Fighting Twitter words! Is ANOTHER Breezy girl fight brewing? Wonder if Rihanna might find this amusing!