I feel that if I'm going through something, I'm sure someone else is, too.

I am obsessed with my sisters. Being the oldest, I probably just have that in me. But I also think I am the youngest sometimes. We all have moments when we are the maternal one of the group.

After my daughter was born, I made a promise to myself to live in the moment.

After Mason was born, I'd feel guilty doing anything that wasn't related to work.

I nursed Mason for 14 months and Penelope for 16, and I loved it. It was built-in time that the two of us could share alone every day. I didn't have any goals or expectations.

We've always wanted to do a clothing line, and I personally love doing stuff with my sisters; I think it makes the whole process that much better.

I don't think fame is that important to me.

First dates are so awkward and annoying. I think a casual and fun first date with friends is much more fun than a one-on-one typical first date.

Nothing comes before my children. I find that putting everything else in order of importance also helps to get everything done.

We're definitely honest with each other... if your sisters can't tell you that you look ridiculous, who can?

I've been applying makeup long enough to feel good doing it on my own, but I cannot do my hair to save my life. When left to my own devices, if I have to go to an event, I do a slicked bun. Otherwise, I just try to wear a hat, put it in a ponytail, or do a side braid - something easy.

When I do my own makeup, I always start with Laura Mercier Tinted Moisturizer.

Since we started putting together our makeup collection, Kardashian Beauty, I've been extra invested in our list of no-no ingredients. It's an ingredients black list that we don't allow into the products - no parabens, no sulfates.

Before Christmas, I host a party for our kids and all their friends. We love to make a mess while decorating gingerbread houses.

I find a pregnant body to be beautiful and an incredible reminder of what a woman's body is made to do.

I love being pregnant in general.

I was surprised that everyone calls it 'morning sickness,' because it lasted all day. For me, it was even worse at night. During my first two pregnancies, I felt so nauseous all day that I could only eat plain toast and bland foods - no proteins.

Women always ask me how to get back in shape after having a baby. I always say, 'Know when's the right time for your workout and commit to doing it.'

My entire life changed when I became a mother - my priorities, my understanding, appreciation of life, and my relationship with God.

I wouldn't say I'm strict. I love to communicate with my kids, and I constantly check in and try to talk things through instead.

I remember when I first found out I was having a boy, I became obsessed with buying boys' clothes. Then came my daughter, and I was obsessed with buying girls' clothes. Everything looks 10 million times cuter when it's teeny-tiny.

I've always loved children's clothes - my grandmother actually owned a children's boutique in La Jolla, CA, for 30 years. I grew up visiting her and working in her store, and then my mom and I had a children's boutique together for five or six years.

I think I forget every time - you give birth, and you want your stomach to be flat again. It does take a lot of work, but I usually start slowly by going on walks with the baby.

My mom and both of my grandmothers have always been into fashion, so it's been around us our whole lives.