The transexual hinted that she slept with the comedian back in 2006 after appearing on 'Big Brother's Big Mouth' which he presented, according to The Daily Star.
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Lauren Harries entering the Celebrity Big Brother house
In a blog called The Affair, Lauren said the encounter took place in a Holiday Inn in Borehamwood, Essex, near the CBB studios.
Russell is said to have flirted with her after she appeared on Big Brother's Big Mouth, calling her a "sexy cow".
She added: “I knew it would take a man with real awareness and strength to take me on. And now Russell Brand was calling.”
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Russell Brand
Later she tweeted: “Although Russell thinks he’s Jesus – believe me girls, he’s not."
Russell Brand's publicists have not commented on the claims.
The 19-year-old was complaining of feeling sick after overindulging at her birthday slumber party, when Lauren attempted to help by administering some of her tablets.
After she placed them in Courtney's mouth and told her to swallow them with some water, Big Brother announced: "This is Big Brother. Housemates are reminded they must not share medication. Would Lauren please come to the diary room."
Celebrity Big Brother contestants
Carol McGiffin(01 of13)
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Carol McGiffin is best known as a regular panellist on daytime talk show 'Loose Women'. She married Chris Evans in 1991 and the couple separated in 1994 and divorced in 1998. She is now engaged to Mark Cassidy who is 22 years younger than her. She’s not shy of tabloid attention and has admitted to loving a few drinks and a good party. (credit:Channel 5)
Mario Falcone(02 of13)
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Mario Falcone is a television personality and also a bespoke tailor on Saville Row. He is best known for starring as himself in the ITV2’s 'The Only Way Is Essex'. Debuting during the third series in 2011, Mario became known for his on/off relationship with Lucy Mecklenburgh, which finally ended in February 2013. He used to be a self-confessed player - involved in threesomes, foursomes and fivesomes (credit:Channel 5)
Bruce Jones(03 of13)
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Bruce Jones is an actor, best known for his role as cab driver Les Battersby in 'Coronation Street'. He left the role in 2007 (credit:Channel 5)
Vicky Entwistle(04 of13)
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Vicky Entwistle is most famous for playing the role of "loudmouth" factory worker Janice Battersby in ITV's 'Coronation Street'. (credit:Channel 5)
Louie Spence(05 of13)
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Louie Spence is a choreographer, television personality and artistic director of Pineapple Dance Studios. He was a professional dancer and in his youth, performed in West End musicals such as Cats and Closer to Heaven. (credit:Channel 5)
Abz Love(06 of13)
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Abz Love was a member of the famous 90’s boy band 5ive. They sold almost 20 million records around the world. (credit:Channel 5)
Charlotte Crosby(07 of13)
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Charlotte Crosby is a British reality television personality who shot to fame on 'Geordie Shore'. Her on-off relationship with fellow cast mate Gaz had viewers gripped. Famously labelled as Cheryl Cole’s favourite, Charlotte loves to be the centre of attention and describes herself as fun, loveable, ditzy and laid back. (credit:Channel 5)
Courtney Stodden(08 of13)
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Courtney Alexis Stodden is an American television personality and model. At 16 Courtney, an aspiring country music and pop music singer and actress became in touch online with critically acclaimed 'Green Mile' actor Doug Hutchison, on the recommendation of a friend who worked in Hollywood and knew Hutchison. They began a courtship over the Internet. On 20th May 2011, the couple married in Las Vegas. (credit:Channel 5)
Danielle Marr(09 of13)
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Danielle Marr is celebrity Botox Doctor and clinical Director of DermaFace Clinic. She rose to fame through the reality show 'Dublin Wives'. (credit:Channel 5)
Dustin Diamond(10 of13)
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Dustin Diamond is an American actor best known for his role as Samuel "Screech" Powers in the television show 'Saved by the Bell'. He’s also appeared on the reality TV show 'Celebrity Fit Club' and published a memoir, Behind the Bell. Dustin has also directed and released his own sex tape called 'Screeched – Saved by the Smell'. (credit:Channel 5)
Lauren Harries(11 of13)
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Lauren Charlotte Harries (born James Charles Harries) is a British TV personality. Beginning her career as a young boy at the tender age of 10 on the Wogan show, Harries was labelled a ‘child prodigy’ in the field of antiques. Harries, who is now a woman after a full sex change operation was born was born in Surrey in 1978. (credit:Channel 5)
Ron Atkinson(12 of13)
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Ronald ‘Ron’ Atkinson is a football player turned team manager who went on to become a football pundit with his own trademark phrases known as "Big-Ronisms" or "Ronglish". He was famously forced to resign from ITV in 2004 after making a shocking racist comment about black Chelsea star Marcel Desailly. (credit:Channel 5)
Sophie Anderton(13 of13)
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Sophie Anderton is a model and reality television personality. She was born in Bristol and rose to fame after appearing in underwear brand Gossard’s 'girl in the grass' advertising campaign. She has been on shows such as Celebrity Love Island, 'I’m a Celebrity Get Me Out Of Here', 'Hole in the Wall' and 'Winter Wipeout'. (credit:Channel 5)