Probably about 20%: Also depends upon what you consider sex. Vaginal or anal intercourse, oral or cunnilingual, or genital manipulation. Almost all boys have practiced masturbation by age 15 years.
Answered 6/29/2012
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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