Penis size does matter when it comes to pleasure in the bedroom, a new study revealed. However, researchers found that size only matters for some women and for certain types of orgasms.

The latest findings, published in The Journal of Sexual Medicine, show that women who have frequent vaginal orgasms are more likely than other women to say they climax more easily with men with larger phalluses.

The study also revealed that larger members are preferred by women who preferred penile-vaginal intercourse over other types of sex.

"Male anxiety about penis size may not reflect internalized, culturally arbitrary masculine stereotypes, but an accurate appreciation that size matters to many women - just as men feel legitimate anxiety when they enter the mating market about their intelligence, personality traits, sense of humor, social status, height, wealth, and other traits known to be favored by women across cultures," said researcher Stuart Brody, a psychologist at the University of the West of Scotland, according to LiveScience.

Researchers surveyed 323 women at a Scottish university about their past month's frequency of various sexual behaviors, including penile-vaginal intercourse, vaginal orgasm, and clitoral orgasm. The women were also asked about whether penis length influenced their ability to orgasm with vaginal stimulation as well as non-coital sex or any form of sexual activity that does not include vaginal penetration like masturbation, frottage, oral sex or anal sex.

They found that the likelihood of orgasm with a longer penis was related to greater vaginal orgasm frequency but not related to frequencies of other sexual behaviors, like clitoral orgasm.

Researchers explained that the results from the study showed that while the likelihood of orgasm with a longer-than-average penis, defined as the length of a 20-pound banknote or U.S. dollar bill, which are 5.8 inches and 6.1 long, was related to greater importance attributed to vaginal stimulation, it was not as important to non-vaginal intercourse.

Of the 160 women who experienced vaginal-only orgasms had had enough sexual partners to compare size experiences, 33.8 percent preferred longer-than-average penises, 60 percent reported that size doesn't matter and 6.3 percent said that longer penises were less pleasurable than shorter penises.

Researchers also found that women who reported the highest number of vaginal orgasms in the past month were also more likely to say that longer penises were better.

"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," Brody said. Researchers warn that the study sample was limited to Scottish university students and should be replicated with a more diverse group.

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