Jennifer Lopez has insisted that she's single but photos say otherwise as the "American Idol" judge was snapped with ex-boyfriend Casper Smart and her twins on their way presumably to a beach.

The 45-year-old actress was seen on Saturday with the 27-year-old backup dancer, along with her seven-year-old twins, Max and Emme, gassing up at Calabasas gas station.

"The 'American Idol' judge looked to be relaxed, seeming to be make-up free beneath a pair of oversized black sunglasses, as her thick honey-coloured tresses were casually pulled back," reported Daily Mail. "She showed off her sculpted legs in a flowing thigh-high-slit floral frock which she covered up with a blue cardigan."

Jennifer Lopez and ex-boyfriend Casper Smart were snapped smooching late last month in Los Angeles.

"The former duo was seen kissing shortly before J.Lo began taping an episode of American Idol and were reportedly inseparable during most of the day's shooting," said E! News. "The PDA moment, which comes nine months after the two called it quits, is causing many to wonder whether or not they've gotten back together."

However, Casper Smart told the entertainment news site that there's nothing romantic going on.

"We got a lot of ties. We're very close. We're friends. We're very good friends. I mingle a little bit here and there...but, you know, I'm single," he said.

In a recent interview with E!, Jennifer Lopez also denied that she has gotten back with Casper Smart.

"I'm single right now, thank you," she said.

According to Hollywood Life, Jennifer Lopez and Casper Smart rang in the New Year together in Las Vegas where she performed for an NYE concert, "The Best is Yet to Come."

The tabloid website said that it wouldn't be surprised if Jennifer Lopez is dating Casper Smart again as they remained friends throughout their split, even with rumors that he cheated with a transsexual which was blamed as the reason for the breakup.