So science is finally backing up what we have long suspected: penis size actually matters, but only for “some women, and for certain types of orgasms.”

According to an article in the Huffington Post, women who frequently orgasm vaginally, as well as those who prefer penile-vaginal penetration, tend to favour men with larger penises. So say the findings of a study recently published in The Journal of Sexual Medicine.

"Male anxiety about penis size may not reflect internalized, culturally arbitrary masculine stereotypes, but an accurate appreciation that size matters to many women," said researcher Stuart Brody, a psychologist at the University of the West of Scotland.

Of course not all women need or want long penises. Some women prefer clitoral to vaginal orgasms. As with everything, sex has a lot of variables.

Needless to say, we women are a complicated bunch, especially between the sheets. Some of us come while performing abdominal exercises leading to “pleasurable spasms at the gym.” Some don’t come at all. Our lady bits are enigmatic at best. Think of that elusive G-spot. 

Brody, however, believes a psychological correlation is responsible for a women’s ability to orgasm by vaginal stimulation alone, including a “better relationship quality.”

When he and his colleagues asked more than 300 Scottish university students about past sexual encounters, 33.8 per cent preferred longer than average (defined by a U.S. dollar bill—6.1 inches (15.5 cm) long) when it came to the frequency of vaginal orgasms.

Whereas 60 per cent said size didn’t matter, and a 6.3 per cent favoured the shorter penis.

"This might be due at least in part to greater ability of a longer penis to stimulate the entire length of the vagina, and the cervix," said Brody.

But is the vaginal orgasm the holy grail of sex? Does it really matter how you come, as long as you get there?