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It has been entirely too long since we had the pleasure of seeing Zach Galifianakis’ twin brother Seth. (If you remember, they had a falling out a while back when Seth caught Zach making homemade ecstasy out of Tide with Bleach.) Click through to watch the latest installment of Between Two Ferns, which features Seth filling in for his brother while he’s away at adult fat camp by interviewing Sean Penn, who can’t seem to get a word in edgewise.