A Manhattan woman has filed a lawsuit claiming a creepy former NYCHA staffer slid into her DMs — and then showed up in her apartment where he asked her to pull down her pants.

Jennifer Calcano told The Post she had no idea the man messaging her on Instagram did repair work at the Upper West Side development where she has lived for most of her life.

“At no point did he introduce himself as the guy from housing,” the 32-year-old said, recalling the unsolicited messages in which Gene Michael Thomas claimed to be a photographer, demanded “sexy” pictures” and asked her to pose for a photo shoot.

She ignored him, and forgot about it until a repair man came to inspect a leak in her Wise Towers home in January 2019.

They were standing in her bedroom with her newborn baby when, out of nowhere, he mentioned a tattoo of a black orchid on her right buttock that was not visible at the time.

“He said, ‘by the way, nice tattoo, can you pull your pants down so I can see it better,” the mother of three said. “I froze.”

“I said, ‘absolutely not,’ I don’t remember exactly what I was saying, but I was thinking, ‘I have to get him out of this house, but I don’t want to make him angry,'” she said. “I kept thinking, ‘If I upset you, you may hurt me.'”

She told him she had to put the baby down, and it was only then that Mitchell asked why she’d never responded to his Instagram messages that she realized who he was.

When Calcano went to report the incident, a NYCHA representative told her she could move out if she felt uncomfortable, according to the complaint.

Furious, she posted on Facebook about the incident, and later did an interview with CBS.

She says it was only then that NYCHA began to take it seriously, and fired Mitchell following an investigation.

But since the incident, Calcano claims the NYCHA has retaliated against her by ignoring request for repairs.

Her Manhattan Federal Court lawsuit cites sexual harassment, hostile housing environment, retaliation and other claims against Mitchell and NYCHA.

“Sexual harassment by NYCHA employees profoundly alter the housing environment for tenants,” lawyer Mark Shirian said in a statement.

“No one should have to put up with sexual harassment, especially in their home. We hope that this lawsuit sends a message to NYCHA that we will hold them accountable for tolerating this egregious behavior.”

Asked for comment, a spokesperson with NYCHA said they had not been served.

Mitchell could not be reached.