Justine Greening, the Conservative International Development Secretary, has today revealed she is in a same-sex relationship.
Her announcement follows that of David Mundell, who earlier this year came out as gay.
She has become the second ever openly queer Tory cabinet minister.
She was congratulated by three openly gay MPs, Labour's Angela Eagle and Wes Streeting, as well as Conservative Foreign Affairs Committee chair Crispin Blunt.
SNP MP Hannah Bardell also offered her congratulations.
Greening chose the day when thousands of Londoners were celebrating LGBT Pride to make her announcement on Twitter.
It comes as David Cameron today sent a message to Pride-goers saying they should "come together in the shadow of the absolutely appalling attack in Orlando".