Ashley Olsen and Mary-Kate Olsen at LAX

Ashley Olsen and Mary-Kate Olsen were together yesterday as they took off from LAX. It was a short stay on the West Coast for Ashley, who only traveled to California earlier this week. They were in Hollywood to toast their line The Row's $55,000 12 Nile backpack, which was a collaboration between the sisters, artist Damien Hirst, and the luxury store Just One Eye. The Olsens gathered friends, including Mary-Kate's ex Stavros Niarchos, to the shop to check out the 12 bags for sale.

The girls are looking forward to wrapping up the year together. At their bash Wednesday, Ashley mentioned her holiday plans. She said, "I'm really ready for Christmas, which I'll be spending at home with my family." It's an extraspecial time for Mary-Kate — she's entering her first holiday season with boyfriend Olivier Sarkozy.