Jennifer Lopez is unsure if marriage will be on the cards for her again despite being in a longterm relationship with back-up dancer Casper Smart (25).

The 44 year-old first got married to a Cuban waiter called Ojani Noa in February 1997 but ended shortly after in January 1998.

Lopez then married former back-up dancer Cris Judd in another short partnership, they were together from September 2001 until June 2002.

The 'Anaconda' actress would tie the knot again with fellow singer Marc Anthony in June 2004, they would go on to have twins, a boy and a girl, who were born on February 22nd 2008.

The couple announced their split three years later in June 2011.

However, the 'American idol' judge has been happier in recent years, she has been in a relationship with a back-up dancer called Casper Smart since October 2011 and he is 18 years her junior.

Although their relationship is well over two years-old, J-Lo admits that marriage may never happen again for her.

When speaking to reporters at the American Idol panel during the Winter TCA press tour, someone asked her if Casper was a good father figure, the singer went onto to gush about how "fantastic" he is with her children.

"I don't like the word father figure, but he's fantastic with the kids and he helps me very much with my work," she said.

"It was his idea, he knew I had the idea to do 'Same Girl,' and go shoot that in the Bronx and he was like, 'When are we going to be in New York again? Come on I'll do it with you, let's go do it. Let's put that dream down for you.' And he basically produced it with me, so he's fantastic in that way."

Marc Anthony
Marc Anthony had two children with Lopez

Things get a little more personal when Lopez opens up about going on tour with her children following her divorce from Anthony in 2011.

"That was such a transformative year for me anyways," she revealed. "I had just divorced and I went on tour with the kids and I left Idol and it was like all of my security blankets were out and gone and I was doing something that I had never done before."

And when asked if wedding bells are in the 'Dance Again' singer's future, she replied "I don't know, we'll see. I don't know."

"You know, I've always believed in that institution. I believe in it, but it is difficult. I've had my challenges, but at the same time I believe in love, and I think that is the main thing."

Casper Smart does sound like marriage material!

Casper Smart
J-Lo may never marry Casper Smart