Posted on Tue Dec 8th, 2009 12:06pm PDT
Earlier this morning, photogs caught Cash Warren out in Beverly Hills and when they asked him about his relationship with Lindsay, he got all nervous and practically ran inside his car!
Lindsay denied hooking up with Cash (which our own source confirms) and says they're nothing more than co-workers. So what had him all flustered?
SEE THE GALLERY Cash Gets Shy About Lindsay!
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