Even though neither one of them will admit it, it appears that Tiger Woods is dating skiier Lindsay Vonn. After injuring herself during the Alpine World Championships in Austria last week, she boarded Tiger's private jet to come home. A person close to the couple said, "Tiger and Lindsey have been friends for a while, and nothing started out romantically at all, but they really have a lot in common and got closer and closer. He still refers to her as 'my very good friend,' but he's been spending more and more time talking to her – and talking about her." Last month, Vonn's reps kept mum about the rumored relationship, telling PEOPLE magazine that her "focus is solely on competing and on defending her titles and thus she will not participate in any speculation surrounding her personal life at this time." She is apparently not freaked out by his past--remember he was linked to DOZENS of women while married to his ex-wife, Elin.