Ashley Olsen Calls Sister Mary-Kate Her 'Best Friend'!

Ashley Olsen and a friend make their way back to her apartment on Monday night (August 22) in New York City.

The 30-year-old fashion designer went cozy and chic in black sweats and sunglasses as she and her friend chatted.

PHOTOS: Check out the latest pics of Ashley Olsen

Ashley and twin sister Mary-Kate Olsen recently spoke with InStyle where they were asked to describe their feelings towards each other.

While Mary-Kate said that Ashley is “loving and consistent,” Ashley returned the favor by saying Mary-Kate is “the most grounded, brutally honest and compassionate person … and my best friend.”