In the competitive world of air transportation, Singapore Airlines has jumped ahead as the first to add the new Airbus A380, the world’s biggest jumbo jet. The plane, among other things, boasts 12 first-class suites complete with double beds. Comfortable? Yes, but perhaps a little too comfortable for Singapore Airlines who is now asking customers to refrain from using the beds to join the mile high club. The cabins are private, but are not sealed or sound proof. Could be live entertainment for some, a triple-X nuisance for others. “So they’ll sell you a double bed, and give you privacy and endless champagne and then say you can’t do what comes naturally?” Tony Elwood, who traveled with wife Julie in a suite aboard the inaugural flight, told the Times of London. And who said men don’t understand foreplay.