 In 1979, she introduced the Protection of Prostitutes Bill into the House of Commons, turning up with 50 prostitutes in order to campaign for the decriminalisation of prostitution.Colquhoun was Britain's first openly lesbian MP.Colquhoun, a married mother of two teenage children, left her husband, "Sunday Times" journalist Keith Colquhoun, for the publisher of "Sappho" magazine Babs (Barbara) Todd, in 1975.