By American standards, this photo pretty much counts as seeing Rihanna naked: those panties don't leave much to the imagination, and the pasties aren't even doing their job. But since the photo was shot while Rihanna was on set for Vogue Brasil, we must consider her outfit by Brazilian standards--and in that case, she's really quite overdressed for a day at the beach.
· See more photos at The Nip Slip (thenipslip.com)