And men’s most popular secret is fantasising about having sex with previous partners.
Men were also far more likely to cheat, with 62 percent admitting to a fling compared with 53 percent of women.
And men were more likely to flirt with a colleague too, with 83 percent doing it compared with 74 percent of women.
Two-thirds of women told the IllicitEncounters.com poll that they fake orgasms.
Relationship expert Jessica Leoni said: “We all have sex secrets that we would rather our partner does not discover.”
