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‘Jersey Shore’ Star Ronnie’s Baby Mama Once Arrested For Alleged Public Threesome! Jen Harley was topless in a hot tub, cops claim.

Ronnie Ortiz-Magro’s baby mama’s alleged wild antics make the unhinged cast of Jersey Shore look like puritans!

Years before she was known for being Ortiz-Magro’s on-again, off-again love, Jen Harley was arrested for indecent exposure stemming from an alleged public threesome, RadarOnline.com can exclusively report.

According to a North Las Vegas Police Department report obtained exclusively by Radar, mom of two Harley, began having “sexual intercourse” with a female and a male in a public hot tub in Sin City — in front of a couple and their two young children.

READ THE SHOCKING POLICE REPORT

On August 5, 2007, a couple called Vegas police with claims they witnessed Harley, the man and woman engaging in “offensive” activity as their 7-year-old and 9-year-old children looked on in horror.

“Harley was topless, and [the female] was completely nude,” the responding officer claimed. “[The male] was behind [the female] moaning.”

According to the female witness, Harley and her female friend were kissing, then began having “sexual intercourse” with the male.

A pool maintenance worker verified he spotted the two women undressing.

Harley’s frisky female friend told officers the three were just having some “adult” fun, the police report claims.

Harley and the female were arrested for indecent exposure.

Harley, now 31, was charged with a gross misdemeanor and pleaded guilty to a lesser lewd or lascivious act charge.

The reality guest star has an extensive criminal record.

Before she allegedly hit Ortiz-Magro while their 3-month-old daughter was nearby last month, Harley was arrested for punching her ex-husband in 2013. (The case was dismissed.)

She was arrested for DUI in 2015, and was sentenced to two days in jail.

Just days after she was arrested for domestic battery after the latest fight with Ortiz-Magro, Harley is now back on with her baby daddy.

Luckily for the couple, cops have indicated they don’t plan to pursue the charges against her.

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