Rihanna Has 'Boy Crush' on Justin Bieber; He's Got Abs! 1Rihanna went out to dinner with teen sensation Justin Bieber  in New York Nov. 15, and apparently came away with a hot little boy crush. Move over Kim Kardashian.

After spending the evening with Justin, Rihanna, 22, tweeted:

“Justin Bieber just flashed me his abs in the middle of a restaurant! Wow! He actually had a ‘lil 6-pack! Sexy, lol!”

Justin similarly charmed buxom Kim Kardashian, 30, over the summer and the two were photographed together in a faux amorous embrace.

Kim drew a storm of criticism from Justin’s teen fans because of her age. They two later posed together on a beach for a magazine photo shoot. Justin fans were not amused.
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Sources say Rihanna and Justin had dinner with music executive L.A. Reid and some friends when Bieber started joking that he’s getting ripped since he’s going through puberty.

“Justin started bragging about how he has abs,” an insider told Us Weekly. “Everyone started laughing but Justin was serious.”

At one point Rihanna and her friends asked Bieber to show them off.

“Justin took off his jacket, glasses and lifted up his shirt,” says the source. “Apparently he does have a little 6-pack!”

Meanwhile, Rihanna is set to perform at the 2010 American Music Awards in L.A. Nov. 21.

Justin received four AMA nominations, including Artist of the Year, Favorite Album and Favorite Male Artist.

Rihanna has had her own man troubles. Last year, she was severely beaten by then boyfriend, rapper Chris Brown.

But she has since settled into a steady relationship with Los Angeles Dodgers player Matt Kemp.

So go easy Bieber fans!