Getty
- Boris Johnson is favorite to become leader of the Conservative Party and Britain's next Prime Minister on Tuesday.
- If he wins Johnson will move into 10 Downing Street with his partner, 31-year-old Carrie Symonds.
- It will be the first time a non-married couple have lived in the British leader's London residence.
- Here's what we know about Symonds, a former PR-guru for the UK's Conservative Party and someone who narrowly avoided the clutches of one of the UK's most notorious sex offenders.
- Visit Business Insider's homepage for more stories.
Boris Johnson's relationship with former Conservative Party PR-guru Carrie Symonds was blown open on June 20, when police were called to a quarrel at their south London apartment.
Johnson is favorite to succeed Theresa May as leader of the Conservative Party and Prime Minister of Great Britain on Tuesday, after all-but beating off rival Jeremy Hunt.
Here's what we know about Symonds, who will become the first-ever "first girlfriend" of 10 Downing Street, the UK prime minister's London residence, if Johnson is elected on Tuesday.