I honestly don't know if I would ever do it again. My first experience was weirder than weird.
I've been an artist's model and just once, a nude model for a photographer, a friend of mine who was still in school, although she was already working professionally as a photographer, doing a lot of weddings and a variety of jobs.
She had told me that the photos were for a class of hers and I assumed that it would be no different than my nude modeling for art classes at the college, that only art students would see them.
My first discovery that my trust had been betrayed was the moment I walked into one of my favorite spots, a hip little coffeeshop/bar that had cool bands that played there and hosted poetry slams. I knew everyone there and there were 25 nudes of me hanging on the wall. "Self-conscious" doesn't begin to describe how I felt.
She failed to tell me that she was also having a number of shows around town and that she would be hanging them in various coffeeshops for sale. I was a regular at 5 coffeeshops in town. Within 3 weeks, practically every person I knew socially had seen about 25 out of the 50 or so that she was selling.
Because of her, I've had a few odd experiences, like going over to a date's home for the first time and discovering that there's a giant nude of me on the wall. That happened a few times. Or discovering at least a year later that an ex-boyfriend whom I broke up with before the photos were taken, and who had been married for 6 months, had purchased a copy of every single photo, which I didn't learn about until his wife found them and vandalised every single one by writing crude things all over them.
I considered that another violation of my trust. She should have told me than an ex-boyfriend had purchased what I considered to be an excessive number of photos of me. She knew us when we were together and I was sure that the reason why she didn't tell me was because of how much money he had paid for them.
We are no longer friends.