Is oral sex considered sex? It wasn't to around 30 percent of the study participants. How about anal sex? For around 20 percent of the participants, no. 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.A recent study shows how decades of sex in the dark has resulted in such a global confusion in the act of procreation that we have lost consensus for what constitutes sex.
