Almost Did This...................I saw this and thought I'd give it a shot.
A friend of mine once asked me to come to her art class and pose for a face portrait. I did so and after we were finished, another woman in the room said to come back in a few months. "We DO do nude people." I said - "You're not doing me!" However, when the time came, I called and was picked to pose nude. However, the week before I was to pose, the woman in charge of the class called and said I wasn't needed. The woman who had me sit for a face portrait wanted me to pose for a nude drawing, but at her home! I declined, because I was not risking the chance of pre-teen boys and girls seeing me in the nude. The woman had adopted a few kids.
So, I did not pose nude, but came close a few times.