Britney, K-Fed rekindling their 'once red-hot sex life'

Pop princess Britney Spears and her ex husband Kevin Federline have apparently rekindled their 'once red-hot sex life'.

According to Star magazine, Spears and Federline have been hitting up hotel suites, dressing rooms and even backstage on the singer's 'Circus' tour to do the deed.

"It's like they're newlyweds all over again," Fox News quoted a family insider as telling the mag.

"Brit and Kevin can't keep their hands off each other! The flings have made them both a lot happier," the insider added.

However, Federline's girlfriend, ex-volleyball star Victoria Prince, is hardly thrilled.

According to Star mag, Prince busted Britney and Kevin in the act.