Twenty years after that incident with my ex,
my wife was spied on when naked by her parents’ neighbour when she left some curtains open. She would have been in her early forties at the time.
There was another occasion around the same time, when I set her up in London hotel. The hotel was in a very narrow street. The rooms of a hotel on the other side of the street looked directly into ours. Our room was wide and had two windows in that direction.
While she was in the shower, I put the lights on and only partially closed the curtains. My thinking was that would give her plausible deniability, but she’d still be visible to the people opposite. I then sat down and pretended to read.
After her shower, she played along with my wheeze by ditching her towel and walking all around the room naked while looking for clothes, etc.
I don’t know if anybody actually saw her naked. Nevertheless, it was fun knowing that they might have.