She must have the world's best metabolism!

Kendall Jenner grabbed lunch at Joan's on Third in L.A. today with her pal Travis Bennett, and she didn't get a salad like you would think, because she was carrying the leftovers of her sandwich on the way out. She might be related to the Kardashians, but she isn't built like them!

The stunning brunette just added another job to her resume, starring in the new Marc Jacobs Spring 2015 campaign. Kimmy K's little sis sports a messy bob and military-style jumpsuit in the spread, and it pretty much cements her status in the fashion world.

Oh to be young, rich, and beautiful!