Public Restroom Encounter

This is a confession about what happened one time when I was at a local park walking for some exercise. The park was pretty big and they have walking trails with public restrooms to use if needed. I had been walking for maybe a half hour when I needed to pee so when I got to one of the restrooms I went into pee. There was somebody in one of the stalls, but. I was just here to pee so I used one of the urinals. When I finished peeing I hurt a moan coming from the stall not a pain moan, but a I'm getting close to cumming moan. I don't know why, but I asked "can I help you finish in there?" He responded with " yes please ". Then the stall door opened and I saw a guy around thirty with his very hard cock in hand. I said " nice cock mind if I suck it?" Not at all go right ahead. I got in the stall with him and sat on the toilet. He was standing in front of me and I bent forward taking his cock in my mouth. It was aa nice 6" cock not too big not small. I worked his cock with my mouth and tongue. He said " that's so good I'm going cum soon". I just nodded and kept sucking. He understood that I was willing to take his cum in my mouth. Suddenly he grabs my head and thrust forward. " Here it comes dude take it all." He blasted 5 or 6 ropes of cum which I swallowed as I moaned "Mmmmm". Once I was satisfied I had gotten all his cum I let him slip from my mouth. He said " thanks dude that was great." Then he suprised me and asked "can I return the favor ? " I said "definitely !" We switched place and he gave me an amazing blowjob. He swallowed my cum too. We exchanged numbers agreeing to hook up again.