Paris Hilton -- I Would NEVER Kidnap Kim Kardashian ... We're Friends!

Paris Hilton is no Kardashian abductor ... in fact, she tells TMZ the leaked Ford print ad that shows her kidnapping Kim's family is "stupid" 'cause they're still good friends.

Ms. Hilton was signing autographs for fans at LAX this weekend when she was asked how she felt about the controversy stemming from the ad ... which depicted Paris driving off with Kim, Khloe and Kourtney tied up in the back of a Ford Figo.

Paris blew the whole thing off ... calling the situation "ridiculous" and "stupid" -- but the most shocking part was how she described her relationship with Kim ... considering they had a huge falling out a while back.