A New Jersey school librarian accused of having a sexual relationship with a 14-year-old student called him her “hot boyfriend” — and even kept photos of him on her desk, according to prosecutors.

Kimberly Pinkham, 38, pleaded not guilty Monday to charges of endangering and official misconduct while a middle school librarian with the Kingsway Regional School District in Woolwich Township, NJ.com said.

Prosecutors claim she had “engaged in inappropriate sexual conduct with the student both during school hours and after,” according to the report.

“In one incident, they were found in the media room together with the lights off laying on the floor looking at each other,” Assistant Prosecutor Elizabeth Tornese told the hearing, according to NJ.com.

Text messages also suggested “an inappropriate, possibly sexual relationship” — with Pinkham calling the boy her “hot boyfriend” as they exchanged “I love you” messages, according to the report.

“She had pictures of this student on her desk,” added Tornese, who noted that prosecutors do not have evidence of a sexual assault.

Kingsway officials reported the allegations to police earlier this year and Pinkham was suspended in February. She resigned in June.

She rejected an initial plea deal offer in August, with her case going to a Gloucester County grand jury that indicted her last week on second-degree official misconduct and third-degree endangering/sexual conduct with a child, according to the report.

She remains free pending trial and is due back in court next month.