Mary-Kate Olsen: Darby with Mystery Man!

Mary-Kate Olsen heads into The Darby on Sunday (May 8) in New York City.

The 24-year-old fashion designer, wearing a pair of sequined pants and a furry scarf, enjoyed a night out at the restaurant with a tall mystery male.

Also pictured: Mary-Kate‘s twin sis, Ashley, leaving her apartment on Monday (May 9) in NYC.

MK and Ashley, who attended the MET Ball last week, recently revealed the lookbook for their fall Elizabeth and James Textile line. Check out the collection at Refinery29.com!

FYI: MK is carrying a Marni black, brown, beige, and white floral embroidered handbag.