PHOTOS: Rihanna Shows Off Ni.pple Piercing In Another Bra-less Outfit

 Rihanna again  isn't exactly known for being shy. But it seems the singer clearly doesn't send anymore what anyone thinks especially as far as putting on a bra is concerned.

The 27 year-old pop star flashed her nipple piercing as she ditched her undergarments once more, stepping out in a sheer black vest that leaves nothing to imagination.
another photos below