08/11/2009 05:12 am ET Updated May 25, 2011

Rainn Wilson To Letterman: You Are My Biological Father (VIDEO)

Rainn Wilson was on the "Late Show" last night, talking about how Dave was his metaphorical father, putting him to bed five nights a week. That was sweet (if a little weird) but it got stranger when Wilson suggested that Letterman knocked up his mother at Ballstate University.


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