"Stay" singer was in the south, is celebrating her 25th birthday with friends and on-again, again beau Chris Brown.
On Thursday, Rihanna and Brown, 23, have been seen as a very-time - to each other - if the two visited a secluded beach in Hawaii.
Sporting just there two parts under the transparent fishnet skirt, Riri and her beau played shore hand-in-hand while stealing kisses during a romantic walk.
