London - It is an internet forum where parents can share advice on subjects such as potty training and the spiralling cost of childcare.
But Mumsnet has also attracted thousands of posts on risqué topics, as women members clamour to share details of their explicit bedroom antics.
The website may be undermining its wholesome image because many users seem preoccupied with X-rated chatter.
A team of moderators delete the most obscene messages, but unless users report a comment, it remains on the site.
On Tuesday, new threads included “Ever s****** anyone famous?” and “I had a dream last night. I’m blushing about it”, which involved a threesome with two men.
The day before, users mused over questions such as “What is the sexiest thing you have ever had whispered in your ear?”
The site features conversations among women about everything from fivesomes and sex toys to rape fantasies and a bikini wax that became too hands-on.
The racy banter risks driving away mothers who visit the site to discuss topics such as health, politics and parenting. Several have expressed their boredom at the incessant chatter about people’s sex lives.
When one user, known as Cindy Crawford’s Left Leg, wrote of her husband’s unorthodox suggestion to spice up their sex life, a wearied mother wrote: “Yawn, yawn. But cindy...there’s one of these threads at least once a week...they are tres boring… and who really gives a **** about your sex life?”.
Members are also often scolded by fellow users for providing “tmi” – too much information – in the discussions about sex.
In one post, a woman revealed that her husband “took Viagra for the first time last night”, describing what happened next in such graphic detail that one user responded, “crosses legs and eyes watering”.
A thread about “weird sexual fantasies now you are pregnant” also prompted admissions of bondage and fantasies about boy band One Direction.
Men have also turned to the site to seek advice on everything from a wife’s porn addiction to her unwillingness to try new things in the bedroom.
Even discussions about education took a steamy turn, with one user suggesting she would have to seduce Education Secretary Michael Gove in order to secure his prompt resignation.
She wrote: “It’s the only way. If I **** him, maybe get him to wear a mortar board while in the act.
“On a desk covered with copies of the national curriculum. Maybe I could have a cane.”
She said she would then sell her story, and “he resigns, job done”.
“I mean, I would be doing it for the kids,” she added.
The website was set up in 2000 by Carrie Longton and Justine Roberts and now boasts 50 million page views a month and an annual turnover of £4-million.
Roberts, chief executive, said: “Happily, it seems some mothers do still have time and energy for their sex lives and we’ve always been pleased to provide a go-to destination for straight answers.
“It seems that mothers on the whole think that sex is a normal part of life.” - Daily Mail