Enjoying a girls' day out with her baby, Kourtney Kardashian and Penelope shopped in West Hollywood on Monday (January 28).

The eldest Kardashian sister smiled brightly in a white top, black sweater, and black leggings while holding her little girl on her hip.

Recently, the sisters have banded together to take on allegations made by their stepmother, Ellen Kardashian, who married their father Robert shortly prior to his death in 2003.

After Ellen told a magazine that the girls' mother, Kris Jenner, was abusive, Kourtney fired back on Twitter, "When someone is delusional, there is no point wasting time responding to their delusions. #blackwidow."