Jennifer Lopez's twins "get along great" with Alex Rodriguez's two daughters.

Jennifer Lopez

Jennifer Lopez

The 49-year-old singer and actor has 10-year-old twins Max and Emme with her former husband Marc Anthony, and has said she's relieved her brood have managed to bond so well with Natasha, 13, and Ella, also 10, whom her current boyfriend Alex has with his former partner Cynthia Scurtis.

Jennifer said: "Honestly it couldn't be better. The four of them are amazingly special kids. I mean, of course I'm going to say that 'cause I'm their mom, but they are and they're sweet and they're loving and they deal with us and our lifestyle in such a great way. And they love each other, they get along so good ... That stuff can be tricky sometimes and I think a lot of people understand that, and I've had other relationships where it's been tricky, but with these four, it really works nicely."

The 'Shades of Blue' star believes timing is everything when it comes to how well her relationship with Alex has worked out, as she doesn't think they would have lasted if they had met in their 20s.

She added: "We were both at a good place in our lives. And I think, maybe if we had met in our twenties, it wouldn't ... you know, maybe not so much. We're too crazy. But now, at this point in our lives, where we both have kids and we both accomplished certain things in our careers and we're kind of in that second act of our lives, we really complement each other."

But despite the pair still going strong, the 'World of Dance' judge insists they haven't made any plans to take their relationship to the next level.

When asked during an appearance on New York City's 103.5 KTU radio if she and Alex have taken the next step, Jennifer said: I'm not engaged. I'm not engaged. No, no."