The model formerly known as Jordan split from the Argentinean hunk in October, but now the rugby star appears to have caught her eye.
The Mirror reports the pair have been messaging each other for the past two weeks, and after meeting at London's trendy Mahiki club Gavin asked the mum-of-three out for dinner and they headed out to Balans in Soho on Tuesday night.
A source told the publication: "Gavin is Kate's type. She has fancied him for years. They got on well at Mahiki. She squeezed his arms and started 'phwoaring'. They spent most of the night in the club's private room.
"Gav suggested dinner so Kate took him to her favourite restaurant where they necked porn star martinis and flirted. They were snogging within minutes. They swapped numbers and plan a more discreet date next week."
The Sun claims the pair had taken part in a photoshoot together, and the photographer appeared to notice the pair had chemistry, writing online: "Just finished the Jordan/Gavin Henson job. That was insane. Fair to say - he pulled!"
Katie had claimed she was still the 'best of friends' with Leandro following their split, but in an interview with Caras magazine, he claimed: "I left her simply because she is crazy. Katie's brain is not wired right, or the wires don't connect properly.
"I don't know what's wrong with her. I was thinking it over recently and one day I packed my bags and left. There was nothing else I could do."
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