Mall restroom years ago

I was on the way out of the mall, figured I'd better stop in the restroom. As I was using the urinal, a rather tall man walked up the the stall next to me. I didn't realize how tall he was until he cleared his throat, I looked up and he was staring at my cock as he could see over the divider he was so tall. He licked his lips, I turned my head away. As nothing like this has ever happened to me before. I felt myself getting hard, I thought to myself what is happening. Even though I was done using the bathroom. I couldn't force myself to put it away, as he cleared his throat again, of course I looked at him, he smiled and licked his lips again as he saw I was liking the attention. I again looked away, I looked down and I was hard as a rock. I still didn't put my hard cock away and zip up. I was so nervous and confused as this could be happening to me. I heard someone approaching the restroom and freaked out. I stuffed my hard cock in my pants and walked slowly out Cuz the bulge was noticeable. I looked back he was following me out side. My heart began to race, what's going to happen, mind you this is a large man and I'm not so much. I can hold my own but was not sure as what was to come. We walked outside, someone I knew was walking toward the mall. We started to talk the large man kept walking. I have seen him several times since the first meeting but nothing as dramatic has happened. I bet you can guess what I did when I got home. Something I have never done before, I masturbated thinking about this man and what may have happened had that person not been walking into the mall. Totally new experience for me have to say it turned me on and it came out of nowhere. At least I think I did, not sure if I was followed into the restroom by design or it just happened