My cousin looked at me
When I was 16 I went to the restroom to pee. I shut the door and of course locked it.
There was a space between the door and the wall and if you looked through to space you could see into the bathroom.
I was at my grandmothers house and my grandmother had put a rag in this space.
I got through peeing when I saw the rag being pushed out of the space. The only people at my grandmothers house were me, my cousin and my dear sweet old grandmother working on her garden outside.
It was of course my cousin. I decided to give her a show. I dropped my pants in front of the space so that she could get a good look at my genitalia.
I played with myself in from of the space and got a boner and got off right where she could see.
My cousin was the same age as me so she wasn't a kid anymore than I was.
I could see her eye through the space and when I got down with a piece of toilet tissue to clean up the cum she got a full rear view of my as and genitalia.
I hope she got what she wanted.
She never mentioned what happened.
I had a similar experience many years ago when my step daughter was about 10. I was awake one morning in bed and my wife had already gone to work. It was early and my step daughter wouldn't be up yet for school. The way our room is set up we have this wall mirror that from the bed you can view our bedroom door. Anyways, since it was early and the wife and I didn't have out morning fuck I decided I needed to jerk off. So there I was laying naked on the bed pumping my cock and about to shoot my load when I noticed in the mirror that my step daughter was peeking around the corner watching. I was both stunned and shooting my load at the same time. When I was done cumming I looked up again and she was gone. I never said anything to her because it would have been embarrassing for both of us. This happened years ago and never happened again but I'm sure I gave her an eye full and had no idea how long she was standing there watching.