The suspended NYPD officer accused of buying kiddy porn admitted to feds that he paid a young girl on Twitter for a sex video, according to a recording played Wednesday in Brooklyn Federal Court.

Timothy Martinez, 43, also allegedly handed to federal investigators a laptop of his that contained a number of child porn images — separate and apart from his other laptop, which authorities seized when they raided his Staten Island apartment.

The creepy cop was recorded by Homeland Security special agent Joshua Crofton at the United States Army Reserve Center in East Shoreham on Long Island in Sept. 2019.

On the recording, Martinez conceded that he paid a Twitter user named Myiaa about $50 for a video of a teenage girl masturbating.

She sent the clip through the platform’s direct messaging service.

“The video was just the girl playing with herself,” Martinez said on the tape.

“The background was a small room, like a closet room. It was dark lighting and there was a sheet on the back window. There was a small bed with no bed sheet. The whole thing was off.”

But he claimed he stopped when he “found out it was a little girl” and apologized.

“I ended it with Myiaa,” he said on tape, although he could not remember whether he bought one or two videos. “I made a mistake, I’m sorry.”

The trial will determine whether Martinez, a Staten Island resident who was arrested in February 2020, will go to jail on several charges, including possession of child pornography and two counts of exploitation.

Federal prosecutors say he had about 600 images of child sexual abuse stored on his home laptop and also took part in video sex chats with young girls online.

“Martinez engaged in live video sex chats with underage girls and had them display their bodies — including their breasts and vaginas — and masturbate,” Campos told jurors during his opening statement Tuesday.

Martinez’s defense attorney, Peter Brill, has said that the sickening images could have come from any one of the dozens — if not hundreds — of soldiers with whom Martinez shared the computer during stints at military bases in Iraq, Afghanistan and Romania.

On Wednesday, the jury also saw Skype video logs of the illicit chats he allegedly had with two girls, known to the court as Jane Doe 1 and Jane Doe 2.

Both women are now over age 18 and expected to testify against the suspended cop.

Martinez faces a minimum of 15 years in prison if convicted of all the charges.

He was released on a $150,000 bond in February 2020. He is listed as being on paid extended leave from the department.

The trial is expected to last the week.