A Welsh Conservative MP has quit his job as a ministerial aide so he could vote against new regulations on sex education in Northern Ireland.
The rules will make it compulsory for all post-primary schools in Northern Ireland to teach pupils about access to abortion and prevention of early pregnancy.
Robin Millar said the issue was a "conscience matter" for him.
He was one of 20 Conservative MPs that voted against the issue on Wednesday.
The regulations passed, 373 for and 28 against. Seven DUP MPs also opposed the regulations.
The Aberconwy MP had been a Parliamentary Private Secretary (PPS) to Welsh Secretary David TC Davies.
He quit before he voted against the government.
A PPS is an unpaid assistant to their minister, acting as their eyes and ears in parliament, and the job is regarded as the first step towards a ministerial career.
