Air sex, much like air guitar, is the act of performing simulated foreplay and sex with an invisible partner in an exaggerated manner. And, of course, it was invented in Japan. Can it be painfully embarrassing? Certainly. And the advice we’ve gotten from an air sex expert is to prepare for your skit with more than a couple of beers. Chris Trew, the guy behind this competition, says the event is “not as disturbing and uncomfortable as you would think. There is definitely room for that, because when we do the preliminary rounds, anyone can sign up. There are people who think they're going to do this and it's going to be hilarious."