Cindy Crawford has vowed never to pose nude again - because she doesn't want to embarrass her children. The 41-year-old supermodel - who last posed nude at the age of 27 - will refrain from baring all in a photo shoot to prevent her son and daughter from being teased by classmates. She says, "Having children has made me consider offers differently. I'm not a lot more choosey about the work I do. I probably wouldn't pose nude again because I have a six-year-old who might get teased about it. "I take my job very seriously. Coming from a model that might sound silly. But at this point in my life I'll only do things that I feel really passionate about. The money I make is nice but it's not the motivating factor any more." Crawford married male model-turned-entrepreneur Rande Gerber in 1998. The couple has a son, Presley, eight, and a daughter, Kaia, six.