Jessica Simpson also had an affair with Maroon 5 front man Adam Levine??

Lowdown hears that the twentysomething CaCee (pronounced "Casey") Cobb - who now finds herself the object of a quasi-custody battle between Jessica and her estranged husband, Nick Lachey - has been blabbing to friends about Simpson's alleged infidelities and voicing her sympathy for Nick's plight.

"CaCee can't get past the fact that Jessica cheated," reports a Lowdown spy close to the situation. "She feels badly for Nick and is very vocal about missing him. She saw Jessica abuse him all along. Ever since 'Dukes of Hazzard,' Jessica hasn't been good to Nick, and no one saw this more clearly then CaCee."

While it has been widely speculated in print that Simpson had affairs with her "Dukes" co-star Johnny Knoxville and "Jackass" alum Bam Margera, the Lowdown insider claimed that Jessica also had a fling with Maroon 5 front man Adam Levine. . . . . .Full Story