Charlie Sheen has had a large number of lady friends of late, but only one of them has his heart.While the "Two and a Half Men" star has been partying it up with porn stars and prostitutes, you can't pay for true love. And according to Radar Online, Sheen's newest love -- or, significant other, at least -- is a 24-year old woman named Natalie Kenly.Kenly, the site says, is a graphic designer who was a cheerleader at Sherman Oaks HIgh School in Los Angeles.