Justin Bieber Showed Rihanna His Abs

Justin Bieber got his flirt on with Rihanna, by giving the singer a quick look at his abs.Last night the U Smile star and Only Girl (In The World) hitmaker were dining in the same restaurant when cheeky Justin showed her more than she was expecting."Justin Bieber just flashed me his abs in the middle of a restaurant!," RiRi later wrote on her Twitter page. "Wow! He actually had a lil 6 pack! Sexy