Singer Jennifer Lopez is contemplating a new family with her young lover.

J-Lo has four-year-old twins, Emmy and Max, with ex-hubby Marc Anthony, but the 43-year-old is considering having children with backing dancer Casper Smart, who is 18 years her junior.

She told The Sun newspaper: "I haven't closed shop in that department. I don't know, we have to see - we only have so many years that you can do that."

The On The Floor hitmaker said that romance has been one of the key factors in her life.

She added: "I am a lover. I mean, at my core I feel like that's such a big part of my personality - and a part of why I do what I do - because I have so much to say on that subject. I feel like that's what my life is about."

Smart began dating the diva in November after he was booked for her shows last summer. He has previously worked with a troupe of dancing clowns, the paper reports.

Lopez has now made him her choreographer and he travels the world in her private jet.

His former clown-troupe mentor Thomas Johnson told the paper: "J-Lo is dating a clown. That's what she wants. They are in a big old circus - and her kids are happy because he is a clown. He is going to make it a brighter atmosphere in their house because he knows everything doesn't have to be so serious all the time. I think it's amazing. If they are both serious, it could be a win-win situation."

Lopez has been married three times and counts Sean 'Diddy' Combs and Ben Affleck as former lovers.

> IN PICS: Jennifer Lopez style history

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• 1997

  Actress Jennifer Lopez filming <em>Selena</em>.

• 2000

  Actress Jennifer Lopez wears a denim dress with long gold scarf and matching belt.

• 2002

  Singer Jennifer Lopez performs wearing all white: hotpants, boots, wide-brimmed hat and zip top.

• 2002

  American singer and actor Jennifer Lopez stands backstage, wearing a pink tracksuit and cap.

• 2000

  Jennifer Lopez in that Versace dress at the Grammy Awards.

• 2003

  Jennifer Lopez and Ben Affleck attend the Academy Awards. She wears a light green on shouldered dress with statement jewellery.

• 2003

  Actress/singer Jennifer Lopez wears a black leather jacket with boyfriend Ben Affleck watching the New York Yankees.

• 2003

  Actress/singer Jennifer Lopez looks smart wearing a skirt, shirt and jumper.

• 2005

  Actress Jennifer Lopez leaves her A/W 2005 show during New York Fashion Week wearing a full-length fur coat.

• 2005

  Jennifer Lopez performs wearing a cut out gold top and black trousers with her hair short and curly.

• 2005

  Actress Jennifer Lopez wears a grey jumper with silver fishtail skirt and matching belt for her film premiere.

• 2006

  Actress Jennifer Lopez matches her dark outfit with her newly dyed dark hair.

• 2007

  Actress Jennifer Lopez wears a one-shoulder coral pink gown.

• 2008

  Singer/actress Jennifer Lopez shows her baby bump in this floor-length brown dress.

• 2009

  Singer Jennifer Lopez wears a figure hugging black dress with knee-high boots.

• 2011

  Actress and siger Jennifer Lopez wears black top and grey scarf.

• 2011

  Jennifer wears a cream embellished catsuit.

• 2011

  Jennifer Lopez wears a figure hugging red dress with shoulder detail.

• 2011

  US singer and actress Jennifer Lopez rocks boho chic with this dress and matching headband.

• 2011

  Actress/singer Jennifer Lopez arrives at the BAFTAs wearing a cut out dark green dress.

• 2011

  Jennifer Lopez dazzles in this short silver number.

• 2012

  Entertainer Jennifer Lopez arrives for the Academy Awards wearing a white a gold dress with plunge neckline.

• 2012

  Jennifer Lopez wears another plunge neckline.

• 2012

  Actress Jennifer Lopez attends the Los Angeles premiere of <em>What To Expect When You're Expecting </em> wearing a cream dress with deep red lips.

• 2012

  Singer/actress Jennifer Lopez celebrates the launch of her new single, <em>Goin' In</em> wearing a short white and gold dress.

• 2012

  Jennifer Lopez performs on stage wearing a silver corset.