Karrueche Tran Sexy Bikini PHOTOS: Chris Brown's Girlfriend Flaunts Thong Booty on Miami Beach, Hotter than Rihanna?

Chris Brown's current girlfriend Karrueche Tran took a break out of her hectic schedule to lounge on a beautiful Miami beach in a sexy thong bikini over the weekend. Check out photos of Tran's adorale polka-dot two-piece below... does the aspiring model have a hotter body than Breezy's ex, Rihanna?

Tran flaunted her toned figure in a cute, black-and-white bikini (decorated with oversized bows) while playing in the sand on Sunday (Sept. 22). Tran was all-smiles when posing for the paparazzi cameras... here's some photos.

But once she turned around in the ocean, Tran displayed even more sexy skin. Not sure if this skimpy ensemble was meant to be a thong, but several beach onlookers got a good look at Tran's preppy booty! MediaTakeOut.com has the close-up.

Several reports confirm that after breaking things off with RiRi, 24-year-old Brown rekindled a relationship with Tran. An alleged insider tells HollywoodLife:

"He's straightforward and honest with Karrueche. For years, he thought he always had to lie to females and sneak around. But a wise G told him that if he's ALWAYS honest, sh#t always works out for the best and females respect that. Since he's been doing that, his life has been carefree."

So what do fans think... does Tran rock a bikini better than Rihanna? Or are both women equally sexy?