More women are cheating on their husbands – and doing it without remorse, sex researchers say.

A stunning 90 percent of adulterous wives told one Manhattan researcher they suffered “no guilt,” but rather felt “entitled” to the pleasure and excitement of their secret trysts, said Susan Shapiro Barash, a gender-studies professor and author.

“Women feel entitled because they’re not getting what they need in the marriage. That’s why women today have affairs,” said Barash, who interviewed 120 wandering women for her recent book on female infidelity, “A Passion for More: Wives Reveal the Affairs that Make or Break their Marriages.”

Based on her research, Barash contends that more than 60 percent of all married women will engage in at least one affair.

And many such women – despite socioeconomic differences – can empathize with someone like Kerry Kennedy Cuomo, Barash said.

In a breakup that rocked political and high-society circles, Kennedy Cuomo, 43, split two weeks ago from her husband of 13 years, Andrew Cuomo, over her alleged affair with randy restaurateur Bruce Colley, who is also married with children.

“These women would recognize her need – her desire to have more in her life than she had in her marriage,” said Barash, who interviewed everyone from bus dispatchers, cops and stay-at-home moms to high-powered financiers, doctors and lawyers for her study.

“For the women who choose it, it’s with great effort, so they really juggle the affair and somehow fit it in.”

Barash found her sexually active subjects by posting ads in YWCAs and asking women who responded to refer friends who were having affairs.

Some therapists don’t agree with Barash. They say many wandering women experience shame and regret – and seek help for adulterous urges.

“I have not witnessed a growing experience of ‘entitlement.’ Their conscience is bothering them,” said Kristen Harrington, a marriage counselor who treats couples for infidelity in upstate Kingston.

But other experts agreed that more women today are determined to dally and less sorry about straying.

“I don’t see women feeling a lot of guilt,” said Baltimore psychologist Shirley Glass, whose book, “Not Just Friends: Protect Your Relationship from Infidelity and Heal the Trauma of Betrayal,” was published this year.

Like other daughters of sexually unfaithful fathers, Glass said, Kerry Kennedy Cuomo, the daughter of Robert Kennedy, could prefer that role rather than emulate mothers who serve as “martyrs” and “doormats.”

Women with careers and financial resources can take more risks, she added: “If their partners find out, they can take care of themselves.”

Glass also found surprising changes in men who mess around.

Traditionally, men’s affairs were purely sexual, often involving a male in power enjoying “a little on the side” with a female subordinate.

“Now, men and women are working together as equals, with a lot of intellectual energy and common interests,” Glass said. “It’s a combination of emotional and sexual bonds. And it’s more dangerous because it creates an alternative to the marriage, rather than just a supplement.”

But equality hasn’t erased the differences in why men and women cheat, other experts argue.

“Men have affairs to boost their self-esteem and because it’s available. Their feelings are closely tied to their sexuality and potency,” said Brooklyn psychologist Marcella Bakur Weiner.

“Women don’t just want a night of joy and pleasure,” she said. “No matter what the feminists say, women want love. They want emotional attachment and bonding.”

Unfaithful

Cheating wives, by the numbers:

60% have engaged in at least one extramarital affair

60% of cheating women seek a long-term affair

65% report that sex is better with the lover than the husband.

70% say their lover is the opposite of their husband.

45% remain in marriage after the affair

25% marry their lover

90% have no guilt, but feel entitled to the affair

Where lovers meet:

1. Workplace (Women: 46%; Men: 62%)

2. Friends

3. Past romance

4. Neighborhood

5. Internet

Cheaters in ‘happy’marriages:

Men: 56 %

Women: 34 %

Sources: Susan Shapiro Barash; “Cheaters: 180 Telltale Signs Mates are Cheating and How to Catch Them”; Dr. Shirley Glass; http://www.philanderers.com