Rihanna Posts Half Naked, Topless Pics in Sexy Bikini On Boat in Brazil (PHOTOS)

Sexy singer Rihanna is showing off her curves in a scantly clad two piece swimsuit bikini and less in new photos posted to her Instagram account.

The singer, who is seen on Copacabana Beach, posed for some sexy pictures in a gold bikini which she stripped the top away posing in only the bottom.

In other photos during the photo shoot, Rihanna is seen striking a pose on a surfboard smoking on a hand-rolled looking small cigar while navigating the waters with a paddle.

Probably her most seductive looking picture was possibly the one with Rihanna staring seductively into the camera while half-dressed on the boat floating the south Atlantic Ocean.

Check out a few pictures of Rihanna on the Copacabana Beach posted to her Instagram.