Young Girls, Older Boyfriends & Sex
Having an Older Boyfriend -- or a Serious Boyfriend at a Young Age -- May Raise a Girl's Risk of Early Sex
Sex by 9th Grade
In the ninth-grade survey, students were asked, "Have you had sex in the
last 12 months?" defining sex as a "man's penis in woman's
Most students answered "no" to that question. But those who had had
a serious relationship by seventh grade were more likely to report having sex
in the year leading up to the survey.
"One in 10 males and females who reported no relationship in seventh
grade said that they had had sex in the 12 months before the ninth-grade
interview, compared with at least one in five who reported in seventh grade
having had a same-age or older girlfriend or boyfriend," write Marin and
The survey didn't ask students to identify their sexual partner or that
partner's age. So the researchers don't know exactly when, or with whom,
students started having sex.
Boys, Girls & Age
Among boys, those with a serious girlfriend by seventh grade were twice as
likely to have had sex in the year before the ninth-grade survey -- compared
with the girls, who were three times as likely.
And while girls with a serious older boyfriend by seventh grade were twice
as likely to have had sex as those who'd had a same-age boyfriend, no such
pattern was seen between boys and older girlfriends. However, those couples
were rare, which might make it hard to spot trends in that group.
Physical & Emotional Maturity
Girls who hit puberty early (menstrual periods by sixth grade) were more
likely to have an older boyfriend by seventh grade.
"This finding is of concern because young females are experiencing
menarche (the start of menstrual periods) at increasingly early ages," the
They add that since physical maturity doesn't always come with emotional
maturity, girls who start puberty early may need advice about handling sexual
attention, especially from older boys.