If nothing else, their flourishing romance has confounded the cynics who, when their affair first became public four months ago, predicted it would never last. Indeed, there were reports this week - strenuously denied by Miss Snowdon's agent - that she was about to 'move in' with Clooney. In truth, it is a rumour she had done little to discourage.
Asked about her plans at a party recently, she replied: To millions of people - particularly male admirers - she is the beauty who stripped to her bra and knickers for the Faberge Addiction commercial, so steamy that TV watchdogs ruled it could not be screened until after the 9pm watershed.
It is a role, it seems, she plays with consummate ease. This is the same woman who prefers 'to go commando' sans underwear even when fully dressed and away from the cameras, and who, according to an ex-boyfriend, is a particularly exciting - perhaps dynamic is a better description - lover. Not surprisingly, Miss Snowdon - she was born Lisa Snawdon - is also a woman who, from an early age, displayed a ruthless determination to be famous. Her mother Lydia, a hairdresser, was just 18, and five months pregnant, when she married insurance clerk Nigel Snawdon in Times were hard, so relatives stepped in to help.
Although her parents settled in Hertfordshire, Lisa spent much of her childhood with her grandmother in Harlow, Essex. Nevertheless, the young Lisa wanted for nothing, and her family indulged her passion for performing. She was enrolled in every conceivable type of class - ballet, tap, disco, even Russian dancing she once complained of dancing so much her feet bled.
She could definitely take her pick. Everybody used to look up to her because she was so attractive. She also had very long legs. She left after a year and a half when a growth spurt apparently left her 'too tall and too curvy' for a stage career she is nearly 5ft 10in. As it turned out, it was a blessing in disguise.
Shortly afterwards she was spotted by a modelling agent at London's MFI club. Within six months she was on the catwalk, fronting campaigns for fashion giants Gucci and Red or Dead.
Like her famous boyfriend, she has always been lucky in love. There have been a string of men, including Levi jeans 'hunk' Paul Sculfor.
And a certain David Loeffler. Loeffler, for anyone who may be unfamiliar with the name, is a rap star with American band EYC. He dated Miss Snowdon for two and a half years in the mid-Nineties. A few months ago, when Miss Snowdon's relationship with Clooney became public, Loeffler rather ungallantly gave a 'kiss and tell' interview to a newspaper.
He claimed they had sex in a car and also that they attempted to join the mile-high club their love-making was apparently interrupted when someone knocked on the cubicle door after a queue began forming outside.
Clooney was, by all accounts, bowled over by the sassy, down-to-earth hairdresser's daughter. So when he returned to Los Angeles, he clicked on her website. There she is described as 'Britain's best-kept secret'. Shortly afterwards, the couple were spotted arriving at the Warner Brothers set to watch a recording of the TV series Friends. He stroked her face and she kept kissing him on the cheek and nose. It was their first public appearance this side of the Atlantic. In the time-honoured tradition, they left through the kitchen in an attempt to avoid photographers before returning to his suite at the Dorchester.
Certainly, nothing better sums up their contrasting personal circumstances than their homes - she with her modest semi in Loughton, while his Beverly Hills residence 'Casa de Clooney' is a sprawling mansion overlooking Los Angeles, complete with pool, tennis and basketball courts as well as a fully-fitted movie screening room.
Every Sunday, when the star is in town, he invites a group of friends over. They go for a morning bike ride, followed by a game of basketball, and then cook up a barbecue. It was at such a gathering that Miss Snowdon was first introduced to Clooney's 'inner circle'. No doubt there will be many more such occasions. As a Hollywood insider says: She is totally different from the plastic, self-obsessed women who pester him.
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