Jennifer Lopez and Boyfriend Casper Smart Talking Marriage!

Jennifer Lopez doesn't waste any time when it comes to love! The 42-year-old American Idol judge has been dating Casper Smart, 24, for only a few months — and her divorce from Marc Anthony has yet to be finalized. But she's already talking about marrying her boy toy, a source tells Star. 

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"Jennifer never does anything half-way, especially relationships," says the source. "This thing with Casper is no different. She told him that as soon as the divorce goes through, she wants to run away with him and get married."

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But Jennifer's loved ones, particularly her mom, Guadalupe, are horrified by the thrice-wed star's increasingly impetuous behavior, as Star has revealed. "Guadalupe thinks Jennifer has lost her mind. She's outraged that Jennifer is giving Casper an allowance and showering him with gifts," says the source. "Both Guadalupe and J.Lo's younger sister, Lynda, are begging her to take a step back, if only for the sake of 3-year-old twins Max and Emme."