The Kardashian Sisters & Mason: Midtown Strollin'

Kourtney and Kim Kardashian took 10-month-old Mason to eat at Serafina in New York City on Saturday (November 13).

As the trio left the restaurant, Kim took her nephew from Kourtney and lovingly kissed and held him. They continued on to shop at Barney's in the Midtown area.

Besides opening up their new Dash store in Soho, the sisters recently launched the Kardashian Kard. Kourtney wrote about it on her blog.

My sisters and I are so excited to introduce our MasterCard. Its prepaid with a daily limit so you won’t get into any trouble. It also makes a fantastic gift with the holidays coming up… that way people can buy whatever they like with it! You can get yours at the Kardashian Kard website."