Of the more than 1,200 respondents to the "Let's Talk About Sex" survey, 43.6 percent admitted to faking an orgasm, the Daily Telegraph reported.
And while it was Meg Ryan's character who famously faked the big 'O' in the 1989 blockbuster, When Harry Met Sally, it appears more Harrys are becoming convincing actors under the sheets.
A staggering 23 percent of men admitted to faking an orgasm compared to just 20.6 percent of women.
Relationship counsellor and sex therapist Matty Silver said that she wasn't surprised by how many people faked orgasms and that men and women often "faked it" for different reasons.
She said that women do it to stroke their partner's ego as a "relationship maintenance strategy'' or because of insecurities about their own sexual performance.