VietJet Air CEO Nguyen Thi Phuong Thao's idea of dressing up the airline's flight attendants with sexy outfits is paying off big time. She's poised to become Southeast Asia's first self-made woman billionaire known for putting bikini-clad models on her VietJet Aviation Joint Stock Co. planes and calendars. Would you fly to Vietnam just for this? I'll need to do some more research...be back after my flight.