Notorious cheater Tiger Woods is getting a taste of his own bitter medicine because his pretty girlfriend Lindsey Vonn has reportedly been caught cheating on him! 
 
 The Olympic skier was spotted locking lips with someone other than Tiger, 37, just a few weeks ago a source told The National ENQUIRER. 
 
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 Backstage at a Justin Timberlake and Jay Z concert in Miami on Aug. 16, Lindsey, 28, was seen engaging in a very public and very hot make out session with an older hunk from the “SexyBack” singer’s tour, it’s reported! 
 
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 “After the concert was over, Lindsey and a group of female friends, carrying drinks, made their way backstage, and Lindsey spotted a guy she very obviously knew well,” a source told the ENQUIRER. 
 
 “She threw herself into his arms and they started on a long session of deep kissing that went on for several minutes. He was a tall, good-looking man, in his mid-40s, with graying temples. They were really going at it. They were both holding drinks, and Lindsey’s free hand was around his neck, drawing him closer, while his hand was gripping her rear end.” 
 
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 Lindsey, who was in Miami for a “LVTakesMiami” promotion and photo session for one of her sponsors, Red Bull, later tweeted: “Wow that was amazing! Best concert I’ve ever been to!” 
 
 “Lindsey’s not a nun,” a source told the ENQUIRER. “She’s a very physical, very attractive young woman with a very strong athlete’s ego. She wants her own fame – not his. Now it looks like she’s checking out the playing field.” The source adds there’s a good chance Lindsey’s secret smooch will be the kiss of death for her and Tiger’s romance. 
 
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 For more exclusive details about Lindsey’s make-out and to find out if the relationship with Tiger will survive the scandal pick up the latest issue of the National Enquirer on newsstands Thursday. 

 Photography by: The National Enquirer 
 
 Serial cheater TIGER WOODS is finally getting a taste of his own medicine! 
 
 In a bombshell ENQUIRER exclusive, we reveal how the golf great’s gorgeous girlfriend, Olympic skiing champ Lindsey Vonn, turned the tables on him. 
 
 “Lindsey is not a nun,” said a source. “She’s a very physical, very attractive young woman with a very strong athlete’s ego. She wants her own fame – not his. Now it looks like she’s checking out the field.” 
 
 The ENQUIRER broke the shocking story of Tiger’s womanizing ways back in 2009, revealing that he’d had a torrid affair with New York party girl Rachel Uchitel. 
 
 Our expose opened the floodgates as a bevy of bimbos came forward to claim hanky-panky with Tiger, sparking the superstar’s $110 million divorce from his stunning Swedish wife Elin Nordegren. 
 
 Now, we’re the first to report about Lindsey’s wild fling behind Tiger’s back. An eyewitness provided us dramatic details of the encounter, including: “…Lindsey’s free hand was around his neck, drawing him closer while his hand was gripping her rear end…” 
 
 This is definitely one story you won’t want to miss – and only The ENQUIRER has ALL of the salacious details. It’s juicy reading – on newsstands now!
– Just try to read this and not feel a little bit gleeful: Lindsey Vonn has reportedly cheated on Tiger Woods. Of course, this report comes courtesy of the National Enquirer and must therefore be taken with a few grains of salt ... but still. "Lindsey is not a nun," as one source explains. Vonn was spotted backstage at last month's Justin Timberlake-Jay Z concert in Miami, making out with someone from JT's tour, according to Radar, which got a look at the article. (Just to remind you, the Enquirer did correctly break the story of Tiger's own cheating scandal.) Lindsey appeared to know the guy very well, says a witness who proceeds to get extremely detailed: "She threw herself into his arms and they started on a long session of deep kissing that went on for several minutes. ... They were really going at it. They were both holding drinks, and Lindsey’s free hand was around his neck, drawing him closer, while his hand was gripping her rear end." The first source tells the Enquirer that Woods and Vonn will likely break up over this, which means no more gross interviews and awkwardly staged photos.