Think you know sex — the human body and opposite sex? Test yourself and see if you need to go back to sex school. Although this test is meant to be fun, all the answers are based in studies and sexual health literature.

Posted on Tue, 02 Feb 2010 1544 GMT at http://us.rd.yahoo.com/dailynews/rss/sea...Q_83453725

I guess I should consider a summer class.

The best info on the quiz is pheromones are strongest an hour after working out.