“Communication is the key to a healthy relationship between yourself and child whom you should be patient, respectful and considerate with.”
This is true, but as a parent you shouldn’t feel pressurised into telling your children everything, there are plenty of alternatives nowadays, such as being taught sex education in schools or simply hearing from friends. As teenagers we often prefer these alternatives, as talking about subjects such as sex and relationships can cause embarrassment and perhaps a little unease.
Conversely, if you fell comfortable on the matter then go for it because in the long term being able to address issues such as these is a definite positive on the road to a stronger relationship. It will help your teenager to make mature decisions about relationships and allows them to feel more grown up. Although again I really believe the necessity to talk about this topic is determined by how responsible you believe your child to be.