Kevin Federline's brother Chris says he not only had an affair with Britney Spears, but fathered her oldest son Sean, according to a new bombshell tabloid report.
Christopher Federline, as reported by the National Enquirer, filed for a restraining order against Britney on December 18 in U.S. District Court in Tampa, Fla.
Claiming The X Factor judge stole from, blackmailed and harassed him. Obvi.
