Melanie Hamrick has defended the 44-year-age gap between her and fiance Sir Mick Jagger

Melanie told Page Six: "He's younger than me.

"He's amazing, he really is."

The star has son Deveraux, eight, with the legendary rocker and explained that her boy has inherited his father's exuberant dance moves.

She said: "It's amazing. It's natural, it's in his genes. No one taught him, no one influenced him. He moved like that before he saw any of his dad's concerts."

Melanie confirmed last month that she and Jagger have been engaged for "two or three years now" but are not in a rush to get married.

Speaking to the French magazine Paris Match, she shared: "Maybe one day we'll marry, maybe not. We are so happy in our current life that I would be too afraid to change anything."

The couple first met in 2014 when they were both on tour in Japan and Melanie explained that they didn't have an instant romantic connection.

Asked if they had an immediate spark, she said: "Maybe a spark, but nothing incredible, like, 'Come on, I'll blow your mind and we'll travel the world'.

"We didn't even exchange phone numbers. At the time, I wasn't in a relationship, but he was."

The couple's relationship soon became romantic and Melanie credits the pair's "support" for each other for keeping their union going.

She explained: "We try to support each other, be there for each other, and make sure everyone is happy. That's all that matters to me and all I strive for."

Hamrick previously claimed that she ignores those who comment on the age gap between her and Mick.

She told The Sunday Times newspaper last year: "Everyone's going to have their opinion.

"If you think about others' opinions, no matter where you are in life, you're going to have a problem and you're going to analyse it. I put the blinders on. Am I happy? Yes. Are the people in my life happy? Yes. Am I hurting anyone? No. OK, they can mind their own business."