A 13-year-old boy raped a female classmate shortly after they had received a sexual education lesson together.
The teenager, who cannot be named, attacked the girl, also 13 at the time of the assault, in a secluded part of their Welsh secondary school grounds two years ago.
After luring her to the concealed spot, the boy, now 15, asked the girl if she wanted to “try sex” and despite her repeated protestations of “no” proceeded to pin her down and rape her, Dolgellau Youth Court in North Wales heard.
Afterwards the boy allegedly told the girl, who was bruised by the assault, "you can go now".
The attack has prompted Gwynedd education chiefs to launch an investigation alongside police and other agencies into the teaching of sex education in the area.
The teenager, who is now in foster care in a different county, was placed under a 12-month referral order and must sign the sexual offenders list for 30 months. He will have to register with police where he living for the next two-and-a-half-years.
He received the maximum possible sentence after District Judge Andrew Shaw elected not to send him to Crown Court.
The attack was only discovered when the school nurse noticed the girl appeared unhappy and after telling the nurse about the assault, North Wales police were called to investigate.
Rape Crisis England and Wales spokesperson Katie Russell told the South Wales Evening Post that anecdotal evidence suggested that teenage rape by friends was not “uncommon”.
“The fact it happened after a sex education class I am sure gives concern about the teaching of sex education in school.”
Sex and relationship education is compulsory from age 11 onwards and the biological aspects of sexual maturity are part of the national science curriculum.
Mrs Russell continued that the case highlights the importance of a combined approach to sexual education that includes relationship advice and information about consent, respect and emotions.
She added: "It is only through genuine education, and much earlier than 13 I would say, that we can help stop this happening."
A Gwynedd Council spokesperson said: "As soon as this serious allegation was brought to our attention, the matter was immediately referred to North Wales Police for investigation.”
The incidence has come to light shortly after Conservative MP Philip Davies’ outburst in the Commons.
Following Labour MP Diana Johnson’s call for more sex education in schools, Mr Davies launched into an irate speech against such a measure, claiming, “we should try having less sex education – or even better, no sex education at all!”
In June of this year the Sex Education Forum, which campaigns for better sex and relationship education, called for an overhaul of current sexual education teaching, claiming that students needed to be better educated from a younger age about saying “no” and lacked basic knowledge about their bodies.