Adam Levine bragged about his affair with Jessica Simpson.

With Jessica Simpson and Nick Lachey headed for divorce court, rumors continue to swirl that Jessica cheated with Maroon 5 front man Adam Levine. According to a well-placed Lowdown spy, Simpson and Levine had their forbidden tryst in early September 2004, after a long night of partying with Jessica's personal assistant, CaCee Cobb, and M5 drummer Ryan Dusick at L.A.'s Sunset Marquis Hotel. "Jessica and Adam were very close in the booth, and she kept putting her hand on his leg," says the eyewitness. "It was obvious … that something weird was going on. A few days later, Adam was talking about how he and Jessica had 'gotten it on' in the hotel that night. Apparently it was just kind of a fling." Yesterday, PR reps for Simpson and Levine vehemently denied any hanky-panky and insisted that the singers are just friends. . . . . .Source