Jessica Simpson’s Fiancé Cheated on Her with His Ex-Wife

New mommy Jessica Simpson is now working to get back to her pre-pregnancy weight but, at the same time, she’s also planning her wedding to Eric Johnson, her baby’s daddy. She might want to reconsider that, says a new report.

Star magazine claims in this week’s issue that Eric is far from the perfect husband material he seems. In fact, he cheated on Jessica right from the start – with none other than his ex-wife, Radar Online writes.

“The Dukes Of Hazard star may have thought that her future husband’s marriage to Keri Johnson was well and truly over by the time she started dating him, but sources exclusively tell Star that the former NFL player was actually sleeping with both of them at the same time,” the celebrity publication writes.

While the alleged infidelity took place when Eric and Jessica were still at the onset of their romance and he was yet to divorce his wife, that doesn’t change the fact that he cheated on her, a friend dishes.

As the saying goes, once a cheat, always a cheat – and it must surely apply to him as well.

“He’s a two-timing cheat! He was still [sleeping] with Keri after he started seeing Jessica. She needs to think twice before marrying him. He’s already cheated on her once — he’ll most likely do it again,” the outraged friend dishes.

As it happens, Simpson still has plenty of time to think things through, assuming all of the above is accurate: she won’t be married in 2012, despite what reports online might be claiming.

“It won’t be this year. I really want to do a big, fun wedding with my friends and family,” she told Katie Couric in her first TV interview since giving birth, which is also when she unveiled her thinner figure thanks to a partnership with Weight Watchers.