A new study has found that if someone says he or she "had sex," one can't really define what exactly transpired, because there is no uniform consensus on what it exactly means.
The study from the Kinsey Institute at Indiana University found that no uniform consensus existed when a representative sample of 18- to 96-year-olds was asked what the term meant to them.
Around 30 percent of the study participants did not consider oral sex as sex, while for 20 percent of the participants anal sex was not sex either.
A surprising number of older men did not consider penile-vaginal intercourse to be sex.
More than idle gossip, the answers to questions about sex can inform-or misinform-research, medical advice and health education efforts.
"Researchers, doctors, parents, sex educators should all be very careful and not assume that their own definition of sex is shared by the person they're talking to, be it a patient, a student, a child or study participant," said Brandon Hill, research associate at the Kinsey Institute.
The study, conducted in conjunction with the Rural Center for AIDS/STD Prevention in IU's School of Health, Physical Education and Recreation, delves deeper into a question first examined in 1999 -- in the midst of a presidential sex scandal where the definition of sex was an issue.
Researchers from The Kinsey Institute asked college students what "had sex" meant to them, taking the approach, which was unique then, of polling the students on specific behaviors. No consensus was found then, either.