"Maybe it's just their genetics, but they're so good," Tyler Shields said of photographing his Mrs. Eastwood & Company costars Francesca and Morgan Eastwood.
Shields' girlfriend isn't his only muse. "The first time I shot Morgan, I was so blown away," he said of Francesca's little sis.
"It was 120 degrees and we were in 70 mile-per-hour winds and they were in dresses," Shields said of the less than ideal conditions during their desert shoot.
"I could barely see, it was so bad," Shields laughed of the weather. "And Morgan's just standing there like, 'Ok, I'm good!' Francesca's like, 'I'm totally fine!' Completely unfazed. They're an anomaly those two."
MORE PHOTOS: Dina's Twitpics