Metro

Sex scion snagged in exposure sting has prior Central Park public lewdness bust

This Masters just can’t seem to keep his johnson in his pants.

William H. Masters III — son of the Masters and Johnson sex researcher — who was busted Saturday for allegedly exposing himself to two female undercover cops while kayaking in Michigan, was also arrested last May on charges of masturbating in Central Park, The Post has learned.

Michigan authorities said they plan on showing photos of the Emmy-winning TV news producer, who’s known as “Howie,” to other women to see if he’s the same flasher who whipped it out in prior incidents near his family’s ritzy vacation home on Lake Huron.

Masters’ “description and the m.o. fits a lot of the incidents that have taken place,” said Huron County Sheriff Kelly Hanson, who set up the kayak sting because of four such incidents in the past two weeks.

“The location, the time of year, the description: it fits a lot of the occurrences,” said Hanson, who noted he cannot say if Masters was definitely involved in the past cases which date back several years.

Masters’ late namesake dad was famous for his ground-breaking work in human sexuality published with his second wife, Virginia Johnson, with whom he co-authored the best-seller “Human Sexual Response” and “Human Sexual Inadequacy.”

The Post’s Page Six yesterday revealed that the younger Masters was the man arrested near his cottage in the exclusive Pointe aux Barques community at 2:50 p.m Saturday.

Masters, 60, “yelled” at two passing female kayakers — actually undercover cops — “for their attention,” police said. “He was completely nude and making obscene gestures.”

The kayakers and another officer chased Masters. They nabbed him after he had dressed, authorities said.

Masters, who is married to fellow TV producer Victoria Baker, spent three days in jail before being released on $5,000 bond. The Hamptons, LI, resident is due back in court Sept. 13 on that charge, which has a maximum sentence of two years in prison.

Masters is due in Manhattan Criminal Court Oct. 17 for a strikingly similar incident in Central Park May 9, when he was spotted by a cop at 9:15 a.m. in the Ramble, a wooded area notorious for anonymous gay sex, court records claim.

The cop spotted Masters standing “naked” and touching himself “in a manner consistent with masturbation,” the records state.

He agreed to perform two days of community service in exchange for having the case dismissed and his record expunged.

Masters’ New York lawyer, Irwin Rochman, declined to comment last night.

Additional reporting by Ian Mohr and Laurel Babcock