Do your teenage daughters talk about the changes in their bodies with you mommies?

My girl and my son has both talked about their bodies. I made it a point to always teach and explain to them for my boy I describe all body parts. And he always laughs when I say penis, I'll usually ignore him. I have friends who their girls don't share. And now they find it hard trying to explain about the body changes. It's never too late, would be good if we can open the topic first.