Sparks flew when the pair were seated next to each other at London’s Nobu restaurant, a haunt of celebs.
And as these exclusive pictures show they are now passionate lovers.
At 11pm the couple left together, taking Arun’s red Fiat 500 to a nearby Londis store to buy drinks.
Exchanging coy smiles, they then strolled to a next-door Indian restaurant to pick up a takeaway.
Looking relaxed in jeans and a pink jumper, Nayar gallantly opened the car door for Kim before driving them to his home.
Liz Hurley’s jilted husband Arun Nayar is dating a beautiful model who looks just like her – but is 20 years younger.
Stunning Kim Johnson, with her glossy chestnut hair and green-eyed gaze, bears a striking resemblance to her boyfriend’s ex.
But having just celebrated her 25th birthday with Arun last weekend, she is a full 20 years younger than Liz.
This week the couple enjoyed three romantic nights together at Nayar’s luxurious £650,000 flat in Kensington, west London.
They were also spotted sharing lingering kisses at a window, in an echo of Liz’s passionate embrace with Aussie cricket legend Shane Warne last month.
Arun’s new romance will be a second stinging blow to Liz, 45, after she discovered bad boy Warne flirting with a married woman behind her back.