Marc Anthony bans ex-wife JLo's toyboy lover from driving with kids

The 43-year-old, was apparently not happy when he discovered that Lopez's new lover Casper Smart has been arrested in the past for drag racing and speeding and has explicitly told her the dancer is not allowed behind the wheel if his kids, three-year-old Max and Emme, are also in the vehicle.

"Marc went ballistic when he found out about Casper's criminal record. He explicitly told Jen that Casper wasn't allowed to drive their children anywhere. Marc hates the fact that Casper is spending time with Max and Emme. Marc is extremely jealous, and doesn't think Jen is using good judgement when it comes to Casper," the Daily Telegraph quoted a source as telling Radaronline.com.

The 42-year-old singer has been dating the 24-year-old hunk for several weeks and had recently spent Thanksgiving with him along with the twins.

Meanwhile, Anthony who separated from the singer-and-actress in July after seven years of marriage is contemplating taking legal action to prevent Casper from driving his children anywhere.

"This wasn't a threat that Marc gave Jen. He will go straight to family court if he needs to get a judge involved to make sure Casper doesn't get behind the wheel with his kids in the car," the source said.

Casper has been arrested twice for speeding and driving on a suspended license.