LONDON, England - Sir Richard Branson will take to the skies as an air hostess on a charity flight in May 2013 to at last settle a bet with aviation rival Tony Fernandes over the fortunes of their teams in the 2010 Formula 1 season.AirAsia chief Fernandes, who once worked for Branson's music business, bet the British entrepreneur that his Lotus Racing team would do better in its debut season than Virgin Racing, the loser to dress up as a female flight attendant.'AWKWARD MOMENT'Lotus F1 finished 10th in the Constructors' championship to Virgin's 12th so, on May 12 2013, Sir Richard - "complete with make-up, a pair of high heels and freshly shaved legs" - will join the AirAsia X cabin crew on a flight from Perth to Kuala Lumpur.Fernandes said: "The day of reckoning for Sir Richard has finally arrived. It's an awkward moment when you go down Memory Lane and recall the times I used to work for him. And it's hilarious to think that it's Richard who will be working for me as a sassy flight attendant."Members of the public can buy tickets for the flight for the equivalent of about R3700 with about R938 of the fare going to Australian charity the Starlight Children's Foundation.Branson is no longer involved in F1 with the Virgin team now competing as Marussia Racing; Fernandes's team has since been renamed Caterham F1.