Kevin Costner's squeaky clean

Kevin Costner's ex-girlfriend has leapt to his defence over claims he masturbated in front of a hotel masseuse.The actor was accused of performing a lewd sex act in front of a beauty therapist while staying at Scotland's Old Course Hotel - where he spent his honeymoon in 2004 - earlier this year.But socialite Birgit Cunningham - who dated the 'Dances With Wolves' star in the 90s - insists the actor would never be so "vulgar".She is quoted by America's New York Post newspaper as saying: "Kevin is very romantic and tender, he would never do anything so vulgar."He would be more interested in a long, loving kiss rather than the naughty bit. He really is Mr. Perfect, squeaky clean, if a little naive when it comes to realising the effect he has on girls."Cunningham also suggested the masseuse who made the allegations may have fabricated the story after Costner turned her down.She added: "Women are always throwing themselves at him but he hates being chased. Maybe she made an advance, was rejected and wants revenge."