You just knew that when Jennifer Lopez, 42, started traipsing around the world with 24-year-old boyfriend Casper Smart, it wouldn't sit well with fiery estranged husband Marc Anthony, 43. But what really steams the salsa singer is the way Casper was frolicking on a Hawaiian beach last November with toddler twins Max and Emme, Marc's children with J.Lo.
"He hit the roof," a close pal tells OK!. "He thinks Jen's crazy for allowing Casper to get close to the kids so soon. Marc was convinced it's just a rebound fling and now he hears she's setting up a room for him in her house."
Adds a source close to J.Lo: "No doubt Marc's lawyers have gone in front of a judge to stop Jennifer from exposing their children to her young lovers. Marc won't stand for some young kid to play daddy. No way."
Insiders say Marc is horrifed that Casper has been chauffeuring the American Idol judge and the kids in her Bentley — the boy toy has a criminal driving record, including a bust for illegal drag racing.
"Marc was on the phone immediately; he told Jennifer the twins are never allowed in the car when Casper's behind the wheel," adds the pal. Jen (who is reportedly selling off all the bling and designer duds Marc bought her) kept her cool. "She promised to keep the kids away from Casper's driving, but made it clear she'd hang up if he spoke to her like that again. Marc got off the phone in a fury," says the source.
The J.Lo source tells OK! that Marc may take this battle to the courts:
"This divorce is real ugly right now," the source says. "She wants full custody of the kids, but Marc's putting up a fight." Looks like things are going to get messier by the day.
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