(NEW YORK POST) – A ball-busting female boss at a Brooklyn precinct is under investigation for allegedly stuffing a pair of her panties into a male colleague’s mouth, police sources told The Post on Monday.

Sgt. Ann Marie Guerra, the second-in-command at the 72nd Precinct Detectives Squad, flipped out on Detective Victor Falcon when he complained about her leaving her underwear all over the unisex locker room, sources said.

“They are f–king clean!” the 38-year-old married mom of two allegedly roared Oct. 7 — as she shoved a pair of her panties into Falcon’s mouth, a source said.

A complaint was filed against Guerra with the NYPD’s Equal Employment Opportunity Office three days later.

“She had an EEO put on her by the precinct detective-unit lieutenant for literally putting her panties in a fellow male detective’s open mouth,” a source said.

Other detectives in the stationhouse have “objected to her leaving her panties on the unisex shower knob and outside her locker for all to see. The lockers are unisex, too,” the source added.

Guerra has groused about her male colleagues’ manhoods on Facebook, including on Sept. 11, a police source said.

“She has been on social media spouting man-hating rhetoric about fellow sergeants having ‘little d–ks,’ ” the source said.

Her raunchy comment was made on a Facebook post of a New York Post story from earlier this month, about an NYPD officer suing the city for shaming her about pumping breast milk on the job.

Guerra didn’t immediately return messages seeking comment.

Falcon could not be reached.

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