Gordon G. Gallup, Jr., Susan M. Hughes and Franco Dispenza have found that people with sexy voices get more sex and have more symmetrical body shapes.

In "Ratings of voice attractiveness predict sexual behavior and body configuration," published in the September issue of Evolution and Human Behavior, published by Elsevier, Susan Hughes, Franco Dispenza, and Gordon Gallup of the University's department of psychology tested 149 men and women by having them listen to recorded, neutral voices counting from 1 to 10. They were then asked to rate the anonymous voices on a scale from "very unattractive" to "very attractive." The results were compared to surveys and morphological measurements taken among the speakers. Researchers discovered that people whose voices are judged to be attractive tend to have sexual intercourse at an earlier age, have more sexual partners than those with voices rated less attractive, and are more prone to sexual infidelity. They also have more sex partners among people involved in other relationships.

"In short," Gallup said, "ratings of voice attractiveness are correlated with promiscuity in both men and women."

The fact that people with more symmetrical bodies have sexier voices is especially interesting. This suggests that the quality of development of a fetus translates into not just a more attractive symmetrical appearance but also into a throat shape that creates more pleasing vocal sounds.

The full paper is on-line.(PDF format)