My experience
When I was 19 and still living at home, I decided to take a piss in my mom‘s bathroom. After I was done, I decided to rub one out. I pulled down my pants, sat on the edge of the toilet with the lid down, and started stroking. I had my head back and my eyes closed. It took a while. But, eventually, I could feel myself getting close. So, I started stroking faster. Just as I was about to cum, I opened my eyes to see my mother standing in the doorway, watching me. For clarity, she was about 43 years old at this time. There was nothing I could do. I came all over myself. Neither of us said a word. I think we were both in shock. She just simply backed out of the doorway and closed the door behind her. Not a word was spoken. That was over 25 years ago, and we still haven’t spoken of it since. It is important to note that it only happened once and also that nothing physical ever happened. I’ve had a kink ever since.