Anthony Weiner says he traded racy messages with as many as three women after resigning from Congress in 2011 for similar conduct.
The married Democrat also said Thursday that he's still "working with people" to get help dealing with his penchant for X-rated online flirting. But he disputes any suggestion that it's an addiction.
Weiner now says he had bawdy exchanges with six to 10 women while in office.
He's continuing his New York City mayoral campaign amid the latest round of disclosures about his behavior.
It got seamier Thursday, when the gossip site The Dirty posted a lewd photo of Weiner that he sent to a woman last year.
Weiner acknowledged earlier this week that his indiscretions continued after his resignation. He insists they have now stopped.
Drop in polls
A new poll suggests Weiner's new sexting scandal is taking a toll on his New York City mayoral prospects.
He's fallen behind City Council Speaker Christine Quinn in the Democratic primary race, and Democratic voters are split on whether he should drop out of the race.
The NBC 4 New York/Wall Street Journal/Marist poll was released today. It's the first poll conducted entirely after new disclosures about Weiner's online dalliances.
He left Congress in 2011 over racy online exchanges he'd had with women. He acknowledged Tuesday his indiscretions continued last year.
Earlier, Weiner was near the top of most polls. The new one shows Quinn leads him 25 percent to 16 percent among registered Democrats.
The poll surveyed 551 Democrats Wednesday. The margin of error is 4.2 percentage points.
Pelosi: Weiner behavior 'disrespectful of women'
House Minority Leader Nancy Pelosi says the behavior of Anthony Weiner is "reprehensible" and "disrespectful of women."
The California Democrat lashed out at Weiner, a candidate for mayor of New York City and San Diego Mayor Bob Filner, saying their behavior is stunning and that they "don't have a clue." Both men were formerly Democratic members of the House.
Weiner, who is married, apologized this week after fresh allegations he exchanged lewd images and sexually explicit messages with another woman. Filner has been besieged by allegations of sexual harassment.
Pelosi suggests both men may need therapy and says they should "do it in private." But she says it's up to Weiner to decide if he should leave the mayor's race.