In honor of her 29th birthday, check out how the star cuts loose on Twitter!
Credit: Courtesy Nicole Richie
Updated: Tuesday Sep 21, 2010 | 06:00 AM EDT
By: Cara Lynn Shultz
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Richie took another playful swipe at Benjamin Madden, posting this shirtless shot and writing, "Just walked in on @benjaminmadden posing like this infront of my 2 dogs. Ummmmmmmm....."
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