Patrick Dempsey aired out his pale white anatomy while on a sleeveless bike ride in L.A. on Thursday.
Forget killing off Katherine Heigl or T.R. Knight, for good ratings "Grey's" should show off the 43-year-old's buff arms more often.
This Is How He Stays McDreamy
5/22/2009 11:00 AM PDT BY TMZ STAFF
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