Chris Brown Parties with Karrueche Tran on Tour Bus, AFTER Kicking Out Two Sexy Groupies: Breezy 'Still Pimping,' Why Rihanna Left?

So it looks like after breaking things off with Rihanna, Chris Brown is officially back together with ex-girlfriend Karrueche Tran. But that doesn't necesarily mean that Breezy's "pimping days" are over... at least according to MediaTakeOut.com. Apparently the "Fine China" crooner was spotted partying and cuddling up with Tran on his tour bus over the weekend... AFTER kicking out two sexy female groupies! Did RiRi break-up with Brown because he's unable to remain loyal? Do fans think Breezy's already cheating on Tran, or is he just having a good time living the life of a uber-successful 24-year-old? Read on for more deets...

Brown and Tran were clubbing in NYC over the weekend, and insiders for Urban Islandz confirm that the couple appeared to be having an awesome time:

“When they stepped in everybody noticed because all eyes were on them... Breezy was dancing to songs from himself, Rihanna and more artists.”

At one point in the evening Breezy tweeted:

@chrisbrown: "Come join me at the ZING Vodka after party at EVR NYC tonight."

And apparently some fans took the invite too seriously... later in the evening, some groupies allegedly joined Breezy on his tour bus. Tran had to order them out before she made her way to Brown's bunk:

For more photos, go here.

Should Tran be worried? Apparently, RiRi had enough of Breezy's mind games, which is why the couple split:

"[Rihanna] is tired of the games he's playing and she's getting too old to let a [man mess] with her mind - she doesn't have time for that! She's done [messing] with him on that type of level but as far as feelings for him, she will always love him. That's been her [man] for days, so the love is always going to be there," an insider for Perez Hilton reveals." She's tired of this back and forth sh#t [with Chris]. [Rihanna] wants someone that's going to be down for her and respect her. She just need to be about her tour and not worry about that fool. She'll be all right. She's the most eligible bi#ch in town."

Do fans think Breezy's truly ready to settle down?