I was seen nude by mother throughout my teens into early 20s.. When my teen exams started, I hadn't been seen nude for a few years... but she continued to be present for my visits through my teens... As I became used to being exposed at exams, I also looked for the thrill at home too, being "accidentally" seen nude... As time went on, I became more casual and open with that as well up until I moved out.
@Jimmybobo do you think your mom also appreciated "accidentally" seeing you nude? My mom likewise kept tabs on my nude body into my early 20s.
Around my 17th birthday she scheduled physicals for my brother and me at the same time, where before they were always around our birthdays, his in the spring, and mine in the fall. Prior to that, her interest in my physicals could be explained by me being a late bloomer. But at the exam on my 16th birthday, she saw that I had "caught up," to use the doctor's phrase. She seemed genuinely annoyed at the staff that following year when they put me in an exam room by myself, with her being in a different exam room with my brother who was 14.5 (and not a late bloomer).
She made up for not seeing me nude at that exam by coming into the bathroom in the next week or so and saying we were late to go somewhere and demanding I get out of the shower immediately. After that, she continued to come into the bathroom while I was showering, pretending to be looking for something. I'd turn my back to her, since the shower curtain was clear, but I soon realized that she would keep "looking" for whatever fake thing until I turned around and faced her, at which point she'd "find" it. After that, I made sure to turn toward her whenever she came in, so she could see me naked, and she'd "find" whatever was "lost" rather quickly. This continued until I moved across the country on my 24th birthday.