I've been caught only 3 times, which is surprising considering how daring and horny I was. When I was 14 I got caught by my father! It was a Sunday morning around 6am, and I was laying on top of my pillow fucking the toy I made (a large baggie with olive oil in it wrapped in a hand towel, tied with shoe laces) and lost in the bliss of it. I was close to cumming when my father opened my bedroom door to let the cat in while I slept (or at least he assumed I was sleeping!). I heard him gasp and then quietly shut the door. We never talked about it, I was mortified. I pretended I didn't know he opened the door, and I think he thought I didn't know he had. The worst part was I never came, and couldn't beat off for a week. Needless to say, when I finally did, it was fucking epic!
The second time was when I was sleeping in a tent with one of my best buddies in the woods behind his house. We both had girlfriends, although I wanted him something fierce. He looked like Dylan O'Brien with blue eyes. But at 15 I was closeted and HORNY!
Like all 15 year old boys we talked about sex, and I layed there in my sleeping bag with a huge boner waiting for him to doze off. Assuming he was asleep, I started stroking it quietly. I eventually unzipped the sleeping bag and started jerking away. He had his back to me, but I froze when he said "I KNOW what you're doing!" Instant horror. To my surprise, he sat up and started digging around in his duffel bag. He pulled out a tube of Vaseline, the tiny kind used for lip balm. He started laughing telling me that he was waiting for me to fall asleep so he could beat off! He pulled down my sleeping bag (I covered myself when he caught me) and squirted some Vaseline on my now limp dick, then began stroking me. We then started stroking each other, and kept at it until we blasted off. I think that was the most intense orgasm I'd had until that point. We then slept, but I woke before dawn to find him licking my semi. After that night we were getting it on every chance we got. His mom caught us once, but that's another story.
The last time I got caught was by a guy doing lawn work. I was staying at my sister's condo while visiting her in Connecticut one summer. The back deck was secluded from other tenants and faced woods, she often sunbathed topless and felt comfortable doing so. So one day when she was at work, I was laying on a chaise lounge tanning on the deck nude. There was the sound of lawnmowers, but they were around the front of the condo. Jerking off in the sun on a 95 degree day is something I love, and I got into it. After I came all over my chest, I looked up and saw a guy holding a manual tree trimmer looking at me! When he saw me looking at him, he just walked away fast. My first thought was him calling the cops, my sister getting in trouble, him telling the neighbors. I never saw him again, and nobody said anything to my sister. I still beat off on the deck after that, I just put a large blanket over the railing to block the view.