A Manhattan judge said Thursday she’s “not entirely comfortable” with confidentiality in a sex-harassment suit against the NBA, no matter how embarrassing the documents might be to league officials.

Rookie training materials — including an image of an obese woman bedding a skinny man underneath the warning, “REASON NOT TO GET DRUNK” — are among the items the NBA has tried to hide from the public in a lawsuit filed by a fired security chief.

The NBA also wants to seal depositions where its officials make embarrassing statements, said attorney Randolph McLaughlin, who represents ex-security guard Warren Glover.

Glover says he was fired in 2011 after standing up for harassed female colleagues.

“I had the responsibility to do the right thing. That’s something I learned in the NYPD,” the former police lieutenant said.

Other sensitive materials include a deposition by Annette Smith, Glover’s former assistant, who settled a sexual-harassment suit with the NBA.

Manhattan Supreme Court Judge Lucy Billings, who has yet to rule, leaned Thursday toward supporting an open-court process.

“I’m not entirely comfortable with these stipulations to confidentiality . . . without giving the public any opportunity to be heard,” she said.