I haven't read the other replies in this thread, but I see nothing wrong with a Christian nudist, I do believe you can be both.
Not sure about other countries, but here in America, the nude human body is highly sexualized. We see nudity in movies typically in bedroom scenes and in strip clubs or other purposely provocative scenes. We have magazines that sexualize women's bodies to advertise, and then there's inappropriate contentography. It's become a part of the culture....We're basically conditioned to think of the naked human body as inappropriate because of it's close association to sex (which is believed to be a sacred, private act to be shared between a married man and woman).
But it doesn't have to be that way. There ARE cultures still in existence in which the people do not wear clothes and do not cover up "private" areas. A woman's breasts aren't seen as sexual or intended for a man's pleasure but rather hold the purpose to nurture babies. If you take away the sexualization, the nude human body really isn't all that exciting. It's just become taboo in a lot of countries.