Why Is Crystal Renn Shrinking?

July 8, 2010— -- Plus-size model Crystal Renn appears to have dropped a couple of sizes and her fans are crying foul.

Why, they want to know, is the woman who has become the face and body of the average size woman shrinking?

Her Ford Models agent Gary Dakin has a perfectly good explanation: "She is not trying to lose weight at all," he told People magazine in May. "She fluctuates between a 10 and a 14."

"She went hiking in Patagonia for three weeks over the holidays and she firmed up and got a little smaller," he explained. "She has also been traveling like crazy and tends to be smaller when that happens."

Dakin was unavailable for an interview with ABCNews.com.

Pioneering plus-size supermodel Emme finds Dakin's explanation plausible. "She is an active girl and when she's not, the weight will come back on. Naturally," she told ABCNews.com. "If she goes to either extreme, then there is room for concern."

Tongues first began wagging in May when Renn appeared on the runway for Karl Lagerfield's Chanel cruise show in Saint Tropez. Many whispered that she was losing her signature curves.