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.
Also on Thursday, House Minority Leader Nancy Pelosi said that Weiner's behavior was "reprehensible" and "disrespectful of women."
The California Democrat lashed out at Weiner 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.
Filner has been besieged by allegations of sexual harassment.
Pelosi suggested that both men may need therapy and says they should "do it in private." But she added that it's up to Weiner to decide if he should leave the mayor's race.
© Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.