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Justin Timberlake, on a break from shooting Bad Teacher with his ex, Cameron Diaz, couldn't help but admire a mini-skirted woman bending over in front of Real Food Daily yesterday.

Rumors of infidelity have plagued his relationshiop with Jessica Biel recently, and with the apparent "chemistry" he and Cameron have in the new film, we think Biel's got more to worry about than just this behind.