The modern woman is not only expected to be a good mother and a professional success, but some believe she needs to behave like a porn star in the bedroom. So if a simple device could reveal whether a woman is capable of a vaginal orgasm , would it take the pressure off heterosexual women to perform? New research suggests that a simple measurement -- a "rule of thumb" -- might be the key to the pleasures of sexual intercourse. About 75 percent of all women never reach orgasm from intercourse alone -- that is without the extra help of sex toys, hands or tongue.

Try out PMC Labs and tell us what you think. Learn More. The pursuit of sexual pleasure is a key motivating factor in sexual activity. Many things can stand in the way of sexual orgasms and enjoyment, particularly among women. These are essential issues of sexual well-being and gender equality. This study presents long-term trends and determinants of female orgasms in Finland. In Finland, five national sex surveys that are based on random samples from the central population register have been conducted.

What percent of the time do women reach orgasm during vaginal intercourse? Multiple studies have been published on this topic, but the results have varied consideriably, making it difficult to draw firm conclusions. Why have the findings been so different from one study to the next? It matters a lot. This is problematic because it means that different women may be interpreting the question in different ways.

And when depictions of sex in the media are thrown into the mix, the gap between expectation and reality widens even further. In 50 popular video clips included in the study, only In a recent survey , 53 percent of men and 25 percent of women in the United States said they had watched pornography in the past year.