Nicole Richie is making the most of her time in NYC, by catching up with old friends. The newbie mum donned a leather skirt and a white vest, as she joined pal Mary-Kate Olsen for dinner at an Upper East Side hotel. Mary-Kate's boyfriend, Nate Lowman, was also in attendance. 

Since arriving in New York, Nicole has been seen soaking up the fun of a fashion show and she's also happily allowed shots of baby Harlow too.