Federline spotted partying with Hilton

Britney Spears' ex-husband Kevin Federline has been spotted partying with Paris Hilton.

The pair were photographed talking intimately at Los Angeles club LAX on Saturday night.

Federline was seen whispering into the socialite's ear, before dropping a kiss on her cheek. They then spent the rest of the evening together, according to US sources.

Hilton and Federline previously partied together in April, when they reportedly flirted on the dancefloor of a Las Vegas club.

Spears recently requested that her two sons be tested for drugs because she believes that her former partner smokes marijuana around them.