Kevin Federline cheated on Britney Spears with a porn star

Everyone assumed that when Britney Spears dumped Kevin Federline it was because she had finally caught on to the fact that he was a good for nothing gold digger. But there may have been more to the split than that. Star magazine claims that the 28-year-old father of four may have been cheating on Britney.

Star says that Kevin and a former porn star named Kendra Jade were having an affair throughout October - a month before Britney filed for divorce. The pair were said to have met in Kevin's favorite spot, Las Vegas in December of 2005. At the time, they exchanged contact information and were corresponding until things got physical last month.

An insider told Star, "Kev and Kendra had sex at their friends' apartment multiple times, starting in early October. Their friend would phone Kendra and a few other girls to come hang out, and it would always end up with Kevin and Kendra heading off to the spare bedroom!" Kevin won't be making it official with Kendra, though. She was just a means of blowing off steam. The source says, "They're just friends who have sex."