Chief Treasury Secretary David Laws has apologised for claiming more than £40,000 in MPs’ expenses to rent rooms in homes owned by his partner.
Mr Laws said he would immediately pay back the money the Daily Telegraph said was claimed between 2006 and 2009.
Mr Laws said he had been trying to keep his relationship with his male partner "private".
Since 2006 parliamentary rules have banned MPs from "leasing accommodation from a partner".
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.