A few years ago I asked an acquaintance to model.
She said, "Yes."
She said she was taking an acting class and was trying to enlarge her horizons and would like to try modeling. After the first session was over she told me that she had been afraid that as soon as she took off her clothing I would look at her and say, "Never mind, put your clothing back on."
She was slender and nicely shaped, a pleasure to look at and draw. She was a very good model and we did three different sessions. I ended up doing three paintings and getting several fine photographs from her modeling. See for yourself