Women describe at least two types of orgasms: clitoral and vaginal. However, the differences, if any, are a matter of controversy. In order to clarify the functional anatomy of this sexual pleasure, most frequently achieved through clitoral stimulation, the researchers used sonography with the aim of visualizing the movements of the clitorourethrovaginal (CUV) complex both during external, direct stimulation of the clitoris and during vaginal stimulation.

“Maybe women without orgasms have a small clitoris, but if they were to try a female dominant position maybe they could get closer stimulation to the clitoris and overcome the fact that it is small”

The outcome? The study discovered there is a “functional difference” in orgasms depending on the type of sexual contact. Specifically, researchers found that only the top of the clitoris responds to external stimulation, while during vaginal penetration both the “root” of the clitoris and the whole clitoral and vaginal complex respond. This affected the flow of blood and therefore produced different sensations in the body.

The study concluded: “Despite a common assumption that there is only one type of female orgasm, we may infer, on the basis of our findings, that the different reported perceptions from these two types of stimulation can be explained by the different parts of the clitoris (external and internal) and clitorourethrovaginal complex [the system of clitoral nerves] that are involved.”

In other words both types of orgasms are clitoral, but the parts of the clitoris that respond are different depending on the type of stimulation.

Such findings semi-align with Sigmund Freud’s two-orgasm concept devised in 1905 in which he argued women experience both clitoral and vaginal orgasms. Only Freud’s somewhat skewed theory claimed that the clitoral orgasm was a childish prelude to the “mature” vaginal sexual response.

Interestingly, the study found that sex positions also play a role in orgasm. Study researcher, Dr. Susan Oakley explained that those who suffered from an inability to orgasm through intercourse preferred the missionary position, whereas women who were able to climax through sex favored being on top. This of course, supports the latest premise that the clitoris is responsible for climax.

Remember that another study tells how good they are for you.

Read the study here and an article on AlterNet here.