SEX and relationships education is to become compulsory in all schools, Education secretary Justine Greening has said.

Under the move, all primary schools will have to teach age appropriate lessons about relationships, while secondaries will have give classes in both sex and relationships.

Miss Greening said statutory guidance for sex and relationships education was introduced in 2000 and is becoming ‘increasingly outdated’, failing to address issues that have increasingly common, such as cyber bullying, sexting and online safety.

Parents will still have the right to withdraw their child from the lessons.