United Kingdom, Feb. 11 -- Kim Kardashian feels "safe" with Sir Lewis Hamilton.

The 45-year-old beauty and the former Formula One World Champion have recently gone public with their burgeoning romance, and Kim is relishing spending time with the sporting superstar.

A source told People: "There's a comfort level there, because they've known each other for years.

"Kim's gone on dates and met people over the years, but Lewis is the first guy she's really into in a long time. She always liked him. She's excited about their romantic connection."

Despite this, the brunette beauty is "just taking things moment by moment and seeing where it goes".

The insider shared: "Her life is very much centered in Los Angeles with her kids and work. She'...