Christie Brinkley has tried not to put "pressure" on her relationship.

Speaking about her romance with the 64-year-old musician, the blonde beauty told PEOPLE: "We're just trying to enjoy each other and not try to put too much pressure on it.

"You never really know what's going to happen. John and I are two people that have very full lives."

However, the Michigan-born star has revealed she was flattered when John first asked her for her number because she thought he was a "silent cowboy".

She explained: "It's always nice to hear that someone is interested."

And the mother of three - who has daughters Alexa, 30, Sailor, 18, and son Jack, 21 - has revealed she fell in love with her partner because they share similar interests such as oil painting.

She explained: "I could never paint in front of anybody. You don't want to be judged. But with John I don't have that feeling. It's just great to be side by side."

Meanwhile, Christie - who has been married four times - admitted it is hard to find love with someone her own age.

She previously said: "It seems like during this period that most of the guys are like 38, 39, 42, like that sort of age group.

"It's funny because I think that at that age they have nothing to prove. They're very confident and do just what they want to do. [With] men my age I feel quite invisible to them.

"I think a ten-year span is fine."