I think just weight loss and a bit of a tan. She was a bit too thin in her latest set (I count 7 total), but she still looks damn good.
Here's one of my favorites of her:
http://ist1-4.filesor.com/pimpandhost.com/1/_/_/_/1/w/o/w/g/wowg/Heather%20Rae%20Young%20%2897%29.jpg
Here's one of my favorites of her:
http://ist1-4.filesor.com/pimpandhost.com/1/_/_/_/1/w/o/w/g/wowg/Heather%20Rae%20Young%20%2897%29.jpg