Experts say we should begin talking to children about sex education at the age of 5.

Research from NUI Galway in 2014 shows that a quarter of Irish teenagers are having sex.

And there are moves in the UK to introduce compulsory sex and relationship education at the age of 7.

Dr Jennifer Twyford is a clinical and counseling psychologist - she says when it come to talking to your children about sex - it's a case of the earlier, the better: