What are the odds of Alison and her husband going out with Beth and Howard. Elin very similar to Alison that she now hooked with someone wealthier than Tiger. Billionaire coal tycoon, Chris Cline. He's worth $1.5 billion. He's also lives in Palm Beach. That's his 33,000 square feet mansion in the middle of the photo. Howard's house is only 18,000 square feet. If Beth starts a Golddigger's Club in Palm Beach Elin and Lindsey can become charter members. Oh, to be a fly on the wall! Tiger Woods and girlfriend Lindsey Vonn are super-friendly with the golf champ's ex-wife Elin Nordegren: In fact, they go on double dates with Nordegren and her billionaire boyfriend Chris Cline, a source tells Us Weekly. PHOTOS: Tiger and Elin through the years "They can be a happy foursome now that Elin has a guy even richer than Tiger," an insider tells Us. "They've hung out at the Seminole Club [in Florida]." Better yet, "they've hung out together with other people," the source adds. PHOTOS: Tiger and Lindsey's romance Earlier this week, Us revealed that Vonn, 29, and the Swedish model have actually become very close friends over the past year. "After meeting her, she found she actually liked her," a source told Us of Nordegren, 34. "You'd think it would be weird, but Elin loves Lindsey and they talk all the time. Elin likes that Lindsey is a strong woman." Woods, 38, and Nordegren finalized their divorce in 2010 after his epic cheating scandals surfaced; the pair have buried the hatchet, and amicably share daughter Sam, 6, and son Charlie, 5. The athlete went public with Vonn in March 2013. Nordegren and the 54-year-old coal tycoon, who is also her Florida neighbor, began dating in March 2013. He's previously been married twice and has four children. PHOTOS: Tiger's scandal revisted Like her dating pals, Vonn has also found her match. "Lindsey is really good for Tiger. She's strong, opinionated, and keeps him in line," the source explained to Us. "Elin found that they are very similar and have a lot in common. They laugh and talk like they have been girlfriends forever."