Rihanna's Facebook Bikini Pictures

Rihanna just posted several bikini pictures on Facebook!

The pop star has been especially generous lately by posting tons of personal photos on Facebook and on Twitter. The newest batch of photos show Rihanna posing in a skimpy white bikini while on vacation in Hawaii. The photos comes on the heels of the impending release of her new movie Battleship that will hit theaters soon.

Check out Rihanna's up close and personal Facebook photos and sound off in the comments!