Kim Kardashian in first pic since son's birth ...

Kim Kardashian looks rather different in a new pic with sister Kourtney Kardashian. The brunette beauty can be seen pouting with her hair up while wearing all black as she showed off her post-baby body with her sibling in a matching turtle neck and trousers. See another photo after the cut.

Fans questioned why the star's face appeared puffy in a bathroom selfie posted on Instagram today.

Kourtney captioned the pic: "Studio hoes. #SWISH," before sharing others with younger sister Kylie Jenner.