US News

IT’S AN HEIR BAWL

What a foul!

It was millionaire Alex von Furstenberg who paid for a plane to fly over a California beach, trailing a banner that read: “Reggie Miller Stop Pursuing Married Women!” The Post has learned.

Several sources said yesterday von Furstenberg — the 38-year-old son of legendary designer Diane and stepson of media mogul Barry Diller — ordered the fly-over because he claimed the former Indiana Pacer was hitting on his 25-year-old bride-to-be.

But fiancée Ali Kay sent two provocative photos of herself to the NBA announcer during a three-month phone flirtation, the former hoop star’s lawyer Marty Singer insisted.

“There was one of her in bed and one with a bathing suit on,” he said.

Noting that Kay is not married, Singer blasted: “This is a ridiculous and absurd story about a single girl who exchanged text messages with Reggie Miller.”

He added that Miller and Kay “only met twice, and briefly,” but regularly communicated by BlackBerry starting in March.

After matching each other text-for-text for several weeks, Miller took Kay’s name out of his contact list. In May, she asked him to put her back in his playbook — and he complied, Singer said.

Neither von Furstenberg nor Kay — who began dating while he was still married to Duty Free heiress Alexandra Miller — responded to requests for comment.

The fly-by floated over Malibu and Santa Monica, Calif., on Saturday — and had groundlings guessing whether the warning came from a ticked-off lover or a vengeful Knick fan.

According to a friend, “Ali met Reggie at a Lakers game back in February 2009 and went back to Reggie’s house afterward.”

That’s when the texting began, the von Furstenberg pal said.

“Ali and Reggie weren’t hanging out together, but she was texting him back,” said the friend. “Alex freaked out when he found out.”

In June, von Furstenberg, who owns a Malibu surf shop, filled out paperwork for a restraining order against Miller.

Miller, von Furstenberg claimed, had run into Kay outside a local grocery and followed her up the Pacific Coast Highway. He also sent Kay hundreds of text messages.

“I was very upset about Reggie’s behavior towards my fiancée,” von Furstenberg wrote.

“I think people in Malibu share my views that being a famous basketball player should not provide some sort of shield against inappropriate behavior.”

According to Singer, Miller and von Furstenberg have spoken by phone and agreed to resolve the matter.

jeane.macintosh@nypost.com