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Study: Oral sex makes intercourse likelier for teens

There are gateway drugs.

And then there's gateway sex.

UC Merced and UC San Francisco researchers have found that half of teens who have oral sex in the ninth grade will engage in intercourse by the end of the 11th grade.

They also found that most sexually active teenagers will begin oral sex and sexual intercourse within the same six-month period.

Those are the results of a new survey conducted by researchers at UCSF and UC Merced.

The study is the first to track teens' sexual behavior over time to determine whether oral sex increases the likelihood of having sexual intercourse or acts as a protective measure delaying the onset of further sexual activity.

Read the complete story at mercedsunstar.com

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