well, according to any nude modeling class i or any pervert friend of mine has ever taken, its virtually a prerequisite for the model to be fat and/or old. not to say that your girlfriend is fat and/or old, but art schools typically subscribe to this belief and their classes thus carry the stigma that its students will draw fat, old people.
"what the crap are you getting at?" you say.
hopefully art students aren't as perverted as say, my friends, and hopefully the really perverted ones are really turned off to the class because of said stigma as were, say, my friends.
bottom line, i would personally feel uncomfortable if my girlfriend wanted to be a nude model, but knowing that the class isn't as full of perverts as you'd think would make me feel a little better about it. after all, you need to be a dedicated artist to get by in a nude drawing class, not just a pervert. most artists focus more on lines and curves and realism than the actual situation at hand.
look at your girlfriend as a bowl of fruit; they get to draw it, but you get to eat it.
