Controversial: Kim is also seen drinking her sister Kourtney's breast milk
Giggles: Kim couldn't stop laughing after tasting the liquid
Kourtney and Kim Take New York is the second spin-off from Keeping Up With The Kardashians following Khloe and Kourtney Take Miami last year.
The new Manhattan-based E! reality show will see Kim and Kourtney attempt to open another of their clothing stores Dash, as well as seeing the sights and sounds of the Big Apple.