Because if you go on the site, you’ll find a lot of avatars adorned with a simple drawing of a woman’s face and a confidential finger over pursed pink lips, with the promise of additional "Private Showcase" photos, viewable only if the member sends you a "key." Many profiles are eloquent and demure, asking men to compose thoughtful missives and to refrain from sending erection photos.But a number are either fake, or appear to be from sex workers, or are written like the following: "to have a well built guy with a huge spear shove it in my tight MILF [orifice not anatomically designed for sexual intercourse] in front of my husband all night long!!!!!!!!

What, exactly, is compelling these married women to set up "sexy dates" in droves, aside from easy Internet access?

For years, our collective narrative of the errant housewife has run thusly: Neglected by her aloof or abusive husband and dying a slow death from her suburban prison, she falls into the arms of a dashing, romantic gentleman.

In myths, novels, and films, from Helen of Troy to Hester Prynne in In the real world, with greater professional equality between the genders and third-wave-feminist sexual liberation, are women cheating for the same reason that men have throughout history, as Megan’s profile suggests—that is, to sate their sex drives and gratify their egos? "Megan has picked Coppelia, a Latin American diner at the border of Chelsea and the West Village in Manhattan, and she’s waiting in a booth when I arrive.

In the spirit of this gender reversal, I invite you to picture me as Carrie Bradshaw, sprawled out on her bed with her Power Book G3, as she voice-overs, "I couldn’t help but wonder: Are unfaithful women the new adulterous men? She recognizes me from my profile photo, and I slide in across from her.

She’s around 40, wearing casual, loose-fitting clothes and a pleasant smile. It is, though—if her identity were somehow unmasked, it could torpedo her high-powered career: She’s worked for one of the most prominent political figures in the country and nearly ended up in Obama’s administration.

In short, she doesn’t fit the portrait of the promiscuous, inconstant woman cast as the adulteress in Hollywood dramas. Over cold Cusque&#x F1;a beers on a hot July afternoon, Megan drops the professional mien.

"I’m a dirty old man trapped in a woman’s body," she says.

News flash: More and more women are jumping outside their marriages in search of no-strings-attached sex. An Internet connection and an account on a site like Ashley

We sent writer and monogamist Teddy Wayne to meet the growing flock of lady Don Drapers *And not by their husbands My eyes are blurry from too many post-midnight hours in front of my laptop, trolling through scores of Internet-dating profiles of women.

I’m carpet bombing them with the same boilerplate message, suggesting, with unsurpassed creativity and seductiveness, that we get together for a drink.

I’m on Ashley Madison.com, the behemoth of extramarital-dating sites, whose controversial slogan is "Life is short. But you probably don’t know anyone on it—or at least anyone who admits to being on it.