When is the right time to talk to your kids about puberty and sex? I wish I knew! What I will say is for me we have always talked about our bodies and so taking that further to talk about puberty and sex wasn’t as embarrassing as I thought it might be. My boys are 15 and 16 now and I think we started to talk about puberty and how their body changes when they were about 8. Mainly as children mature earlier today and I didn’t want them to start experiencing changes in their bodies without having discussed it.