Mary-Kate Olsen had night out yesterday at the New York Academy of Art's 20th annual Take Home a Nude benefit, which was held at the Big Apple branch of the auction house Sotheby's. She attended without her twin and constant companion Ashley Olsen, though Mary-Kate did pose for photos with the academy's president, David Kratz. Mary-Kate and Ashley were together last week for the NYC premiere of Martha Marcy May Marlene, which stars their sister Elizabeth. Across the country in LA, Elizabeth attended Elle Women in Hollywood bash last night. We caught up with Lizzy on the red carpet, and she revealed that Mary-Kate and Ashley don't help her get dressed for the red carpet. Rather, Lizzy asks afterward what they thought, often saying, "Did ya like it?"