Karrueche Tran sexy Instagram PHOTOS turn Chris Brown on, Rihanna Jealous? Model flaunts ample cleavage/curves and exotic tattoos in stunning new snapshots

Aspiring model Karrueche Tran just posted a slew of gorgeous snapshots from a recent photo shoot on Instagram... it's no big surprise why Chris Brown's such a fan!

Tran flaunts a silky blue and gold kimono-inspired robe in the exotic pictures - and she shows-off some VERY sexy skin.

karrueche: "@mikeho_ photography / @dio_mua makeup / @kdperea hair / @branden_king director. Awesome shoot w some awesome people."

And take a look at those full, pouty lips:

Oh, and of course those curves:

karrueche: "WCW Denise Vasi."

Instagram fans are going crazy over these stunning photos... both Karrueche Tran vs. Rihanna haters and supporters alike.

Tran continues supporting her main squeeze Breezy while he remains in rehab... and despite ongoing drama with the singer's ex-girlfriend, the couple's still going strong.

Wonder if RiRi's seen these seductive pics yet?