TUESDAY, Feb. 24 (HealthDay News) -- There's still no firm proof that raunchy music makes kids have sex, but a new study provides another suggestion that there's at least some kind of link between "degrading" songs and teenage sexual activity.

The findings indicate that "people who are exposed to certain messages in music are more likely to copy or emulate what they hear," said Dr. Brian A. Primack, a pediatrician and lead author of the study released Tuesday.

In other words, teens who hear about degrading sexual practices in their favorite songs might decide to try them out themselves. However, it's also possible that the reverse is true: Kids who have sex just happen to like raunchy music.

Expanding on previous research that linked sexually charged songs to sex itself, the researchers surveyed 711 Pittsburgh-area ninth-grade students in 2006 and 2007 about their sexuality activity and the songs they liked to listen to.

The researchers then determined how many of the 279 most popular songs in 2005 were "degrading" because they referred to sex that's "based only on physical characteristics" and features a "power differential" instead of being mutually consensual.

For example, "Wait (The Whisper Song)" by the rap group known as Ying Yang Twins was deemed degrading, apparently because it included a reference to rough intercourse.

By contrast, the lyrics of the rap song "Baby I'm Back" by Baby Bash, including the lines "I wanna be stronger than we've ever been/I'm here to cater to you," was said to be not degrading.

The researchers looked for links between the listening habits of the students and their sexual activity. Their findings are scheduled to be published in the April issue of the American Journal of Preventive Medicine.

After adjusting the statistics in their findings to account for the possible influence of such factors as race and age, the researchers found that youths who listened most to "degrading" songs were more than twice as likely to have had intercourse.