Kevin Federline has the hots for Paris Hilton!

It seems Britney Spears' ex-husband Kevin Federline may have developed a bit of a crush on socialite Paris Hilton.

Kevin spotted the 26-year-old hotel heiress in Los Angeles' Lax nightclub and reportedly got so excited he kept shouting out her name.

Finally, Kevin - who's currently embroiled in a bitter legal battle with 26-year-old Britney, plucked up the courage and went over, gave Paris a kiss and then whispered something in her ear. The pair immediately began laughing together.

An onlooker told British newspaper The Sun: “It looked as though they were getting quite friendly.” But it is sure to cause more upset for an already distraught Britney.

She and K-Fed, 29, were divorced in July and he now has custody of their sons Sean Preston, two, and Jayden James, one.

The 'Gimme More' star is also said to feel betrayed by Hollywood pal Lindsay Lohan — who is dating Brit’s ex-love, music producer JR Rotem.