This happened when I was 20-years-old.
I was raised as a Jehovah's Witness so I don't celebrate Christmas. I was driving back home from work on Christmas Eve when I decided to go to the park and run a few times round. I work at a gym and I had a duffel bag in the trunk so I went to the bathroom and changed. I thought that the park was going to be packed with families but to my surprise it was very lonely.
I changed quickly and started to run. I had been running for about fifteen minutes when I saw a guy slightly shorter than me with his shirt off running. He was very muscular and had a nice six pack. I looked at him as he passed by me and he simply smiled at me. I had been running for about 45 minutes when I decided to call it quits. I went to the bathroom to change and I noticed that someone else was in there. He kept moaning and breathing hard as if he was jacking off.
I ignored it and I quickly took off my shorts and shirt to change but as I did, the other person came out; it was the guy I had seen running earlier. He was standing with his shorts down and his cock was protruding. He had a huge uncircumcised penis with a large head and big balls. He smiled at me and started to stroke his cock in front of me. I tried to concentrate on not getting turned on, but his big shaved, uncircumcised cock and built body prevented it. He walked toward me, reached down, and began to massage the bulge in my boxers. My dick began to get harder and by that time, I couldn't take it any longer, and I removed my boxers.
He started wanking me and it felt good. I reached for his uncircumcised cock and gently stroked it. He started breathing heavily and said he was about to cum so I knelt down and played with his balls with one hand and stroked him real fast with the other. He shot four long ropes of cum on my chest and I continued stroking him, getting the last of his cum from him.
I was so horny and my dick was engorging to its full eight inches. I got up and he returned the favor as I continued to play with his balls. I started to get to the point of no return and let out some moans and groans. I was breathing really heavy and I couldn't stop rubbing my hand up and down his hard six pack. By now his hand was really going at it and I let out a final moan and shot a load on his rock hard abs. I then proceeded to rub my dick with warm cum on his abs. We quickly cleaned up and changed. As I was leaving he spanked me and said, 'ADDA BOY.'
This was the best Christmas I've ever had, even though I don't celebrate it.