"Everyone's like, 'Are your cheeks real? People pay for those cheeks.'
"I've always been told that as a kid. I was like, 'Why would people pay for these big cheeks?' But now I love them."
The Good American co-founder loves it when she and the 65-year-old momager smile because they look so "cute".
She gushed: "My mom has such a beautiful face and I'm like, 'Oh my gosh.' I love when my mom and I smile.
"I see so many photos even on my Instagram that we look the same.
"I don't know what else to call them, but [it's] kind of like these balls on our cheeks when we smile. I think it's so cute. I love it."