Los Angeles, Sep 26 (IANS) Reality TV star Kim Kardashian says her two children -- North and Saint West -- mean everything to her and she doesn't mind sacrificing time with her friends. "My whole world is my kids, it's all I care about… from literally every last thing that they do to what they wear, to all their activities. I love being their mom. I definitely don't hang out with my friends as much just because I have to be with my kids," dailymail.co.uk quoted Kim as saying. Kim, a style icon herself, also enjoys dressing her children. "It's been such a fun journey to figure out how our kids like to dress and how to make cool clothes for kids. We've always been tailoring things and cutting things up, or taking dresses of mine and cutting them down to North's size," she said.