I have masturbated so many times and in so many places it is only normal to expect to get caught by someone at some point. I have had the misfortune of being caught a few times, by strangers and by people I knew. The only time I was actually caught but still got away with it was when I was caught by my younger sister. I might have been 15 at the time. My mom was at work, my sister was upstairs watching TV and I was downstairs cooking for her. I got horny. Nothing special happened except that I was 15 and loved masturbating.
I went into the living room and stood with the door wide open. I learned that when the sun was shining bright outside no one could see into my house really well with my screen door closed. I enjoyed masturbating in my chair in front of my neighbors. There was a basketball hoop set up outside and all the boys would come to play so of course that's where all the girls hung out too. It was fun watching them play together as I played with myself.
I was pretty close to the edge as my sister came running down to tell me something. To this day I don't know what, but I remember jumping up to hide beside the chair. My pants were completely down. I didn't have time to pull them up. I can't remember what I said but I told her to stay where she was and don't come around the chair. What I didn't know at the time was how good it felt to push my cock straight down when I was close to an orgasm. Without me needing to touch it again, I started to have an one! I was kneeling five feet from my sister staring her straight in the eye basically naked from the waist down shooting semen onto the ground and she had no clue. I had to do my best not to show it in my face. I acted like I was thinking of the right reply to her comment as my eyes closed and my breathing got a little heavy. It was a powerful orgasm. It felt wonderful. I released a heavy load but I was way too close to getting caught.