New York- The e-mails are lurid and many smack of desperation.

Found on the computer of the woman at the center of the FDNY sex scandal, the messages to and from the firefighters she courted trace her sad state of mind.

In the months after 9/11, the Staten Island mother of two swapped explicit E-mails with multiple sex partners – just as sources say she did with a firefighter who allegedly had sex with her in a Bronx firehouse last week.

Most of the E-mails, obtained yesterday by the Daily News, are extremely graphic and blunt.

Using an AOL screen name, a married firefighter recalled a threesome he had with the woman in explicit detail.

“… baby, I just want you to know that I was laying in bed this morning (wife was in the shower) and thinking about you,” the firefighter wrote. “… Have a great rest of the day baby!”

In another message, the woman asked an unidentified man: “is it safe to say … that you weren’t disappointed today?”

“I am really looking forward to the next time I can see you. You let me know what works best for you – but PLEASE keep Friday nite open for me,” she wrote in another E-mail.

The 34-year-old woman – who investigators said has bragged about having sex with hundreds of firefighters and cops – first claimed she was gang-raped after having consensual sex inside the Engine 75/Ladder 33 firehouse with Firefighter Tony DeLuca.

She later recanted that story and told cops the sex was consensual – only to claim again she was raped, sources said.

The woman committed herself to a psychiatric ward over the weekend, according to her ex-husband. She could not be reached yesterday. Her parents, who visited the hospital yesterday, declined comment.

No criminal charges have been filed and none are expected, according to law enforcement sources.

A lawyer for the woman’s ex-husband confirmed the E-mails had come from her home computer. “Her husband has been the anchor for their two young children,” said Manhattan divorce attorney Sherri Donovan.

“He is a victim of her inappropriate sexual behavior with these police officers and firefighters,” Donovan said. “This has been an ongoing problem for some time.”

“For the best interests of the children and their stability, we will be seeking sole custody,” Donovan said.

It was not immediately clear whether fire officials – who are investigating whether any other firefighters had sex with the woman while on duty – had seen the E-mails obtained by The News.

The News sent messages to all 11 screen names with whom the woman corresponded.

At least two of the screen names belong to firefighters, who called The News yesterday. Two other screen names contain the letters “FDNY.”

One of the Bravest who contacted The News said he was single and claimed he could not remember whether he had met the woman. The other firefighter said he had an affair with her but it ended two years ago.

“If you use my name, my marriage is going to be over,” the veteran FDNY officer said, on the verge of tears. “I don’t want to see my marriage end for some mistake I made years ago. I’m shocked she’s the same woman.”

Both firefighters said they had nothing to do with the scandal that erupted last week at the Bronx firehouse.

“Mistakes were made,” the married firefighter said. “But what happened in the Bronx was terrible. I would never meet her in the firehouse.”

“Nothing I ever did brought discredit on the FDNY,” he said. “I’m not crazy.”

Fire Commissioner Nicholas Scoppetta has pledged to ax any firefighters who had sex inside the respected Morris Heights fire company, long nicknamed the Animal House.

A furious Scoppetta also has vowed to hold “every officer” at the company accountable.

Yesterday, Mayor Bloomberg said Scoppetta has his full support.

“It’s disgraceful,” Bloomberg said. “We are not going to have people who are working for this city on their job, or even off hours, conduct themselves in a manner that doesn’t reflect well on this city.

“It was an outrage and obviously the supervision wasn’t what it should be. You can rest assured we’re going to work very hard on making sure that kind of behavior does not take place anyplace in our system.”

The city Department of Investigation yesterday continued to question firefighters who were at the firehouse last Friday.

A source said investigators still have not been able to find a stained pillowcase authorities believe was used to clean up the scene before cops arrived.

DeLuca, 34, a married father from Long Island, and Firefighter Christian Waugh, 30, of Yonkers, have been suspended without pay. Three officers and nine other firefighters have been put on desk duty.

Investigators also have seized a firehouse computer that DeLuca allegedly used to trade lurid E-mails with the woman before meeting her for the first time Friday, sources said.

DeLuca and Waugh – who were expected to be grilled by investigators today – have not admitted any wrongdoing, sources said.