Late one afternoon at my apartment, I was really bored and horny and alone...so naturally, it was the perfect storm to jack off. I got naked and situated myself at the computer. I was lubed up and watching videos and edged for a few hours: would feel myself get close, then back off, wait a while, then start back again. I lost track of how many times I did that. But one video I watched took place outside. I decided I'd give it a try. I turned out the lights in my apartment and stepped out on the patio. It was an enclosed patio with high walls. Still naked and hard, I enjoyed the feel of the cool breeze on me. My lubed cock shined in the moonlight. I stood there, taking it all in and slowly stroking.
This apartment was on the backside of the complex. Outside of my patio was a road and a small parking lot for the building behind me. As I stood there enjoying the slow stroke of my throbbing cock, a blonde college girl was jogging by on the road just beyond my patio. She had headphones on and didn't notice me. My apartment building was on a small hill up from the road, so from her viewpoint, she would've just seen my chest, but you'd be able to see the stroking motion of my arm. She passed by maybe 15 feet from where I was stroking my hard dick. She never looked up, but that was enough for me to finish. I shot my built-up load of cum everywhere, all over that back patio. I couldn't help several moan as I released hours of my handy work (pun intended).
She didn't run by again, so it must've been her last lap. She has no idea how much she helped me out that evening...