Jennifer Lopez 'surprised by speed of Marc's romance'

Jennifer Lopez reportedly thinks its "a little strange" that Marc Anthony has introduced their children to his new girlfriend so quickly.

The singer recently stepped out with 22-year-old heiress Chloe Green. The pair were seen holding hands and hugging as they spent the day with Marc's five-year-old twins Max and Emme at Disneyland in California.

Singer-and-actress J-Lo is said to be surprised at the speed of Marc's introduction of Chloe to their children.

"Jennifer apparently finds it a little strange that Marc has introduced Chloe to their children so quickly," a friend told British magazine Grazia.

Jennifer split from Marc in July 2011, and he later filed for divorce in April 2012. The 43-year-old beauty has since moved on and is now dating 25-year-old dancer Casper Smart.

It is not known how long Marc has been seeing Chloe for or how serious their relationship is, although sources have reported things seem to be getting serious following her recent birthday celebrations.

"Chloe is smitten and Marc is the same," an insider reported. "She's going to stay in LA for her birthday so she can celebrate with him."

Chloe, whose father is billionaire businessman Sir Philip Green, was pictured meeting Marc and Jennifer in New York back in 2009.

Sir Philip has the Topshop enterprise under his belt and as such Chloe is not short of money. Sources say she bonded with Marc over the fact they both have the luxury of private transport to take them around the world.

"Even though she has a private jet, he sent his own plane to pick her up. They have been together ever since," a source finished.