A BILLIONAIRE, 81, has married a Playboy cover girl, bunny and model, who, at 24, is 57 years his junior.

Cathy “Spatzi” Schmitz, known as the naked model Crazy Cathy, married property and construction mogul Richard Lugner at Vienna’s Schönbrunn palace.

“Apart from the big age difference everything fits,” Lugner told The Local before the wedding.

“Of course I argued less when I was alone, but a man needs a partner.”

Lugner is known for the famous partners he has invited to the annual Vienna Opera Ball. His partners have included Raquel Welch, Farrah Fawcett, Pamela Anderson, Paris Hilton and Kim Kardashian, who stormed out in July after a white-skinned man with a black face pretended to be her then-fiancé Kanye West.

Lugner, who paid $500,000 for Kardashian to attend the event, called her “annoying” as she always wanted to be filmed.

Lugner has been in a relationship with Schmitz, who has a young daughter Isabelle, since February. This is his fifth marriage.

“Hopefully, this time it’s the right thing”, Lugner told The Local.