File this under: “Things That Could Send Britney Back To The Psych Ward”

Kevin Federline has a thing for a “Girl Next Door.”

Kendra Wilkinson, may only be one of three hunnies in Hugh Hefner’s Harem of Hotties, but Fed-Ex was ready to make the Playboy founder’s 23-year-old bombshell his “official girl” after the pair locked eyes at the X Games Celebrity Skins Classic in Rancho Palos Verdes, California on July 29th.

A Star Magazine spywitness gushes:

“Kevin couldn’t keep his eyes on his gold game because he was checking Kendra out….She laughed at everything he said and was very touchy-feely!”