first time sucked

came home from work and decided to head off to the local pub for a couple of drinks to relax. I was just 18 and had a busy day and needed to let off some steam.
As i sat there alone this guy came over and asked if he could join me, he was older, in his 50`s, and i said yes he could sit.
We chatted about different things for a couple of hours having a few drinks along the way, nothing sexual, just general chat.Thought he was a nice average guy who was just being sociable.
The time came when i said i had to go as i had to get up early the next day for work, so i said goodbye and left to go home.
On the way home i needed to pee and i pass by a local park which has a toilet block in it, so i called in there.
After relieving myself i found myself slowly stroking my cock as i was feeling pretty horny as well. Didn`t take long for me to get hard. It was feeling good.
Suddenly i heard footsteps behind me coming in so i just stopped stroking my now fully erect cock and just stood there at the urinal as if i was peeing.
A man came and stood next to me, i didn`t know what he would think if he looked over and saw my hard cock standing out of my pants and was a bit nervous.
I had to look and see if he was watching me and to my suprise it was Rob, the guy i was talking to in the pub.He had his cock out too i thought to pee and i was relieved it was only him.
I don`t know why but i made a bad joke about being horny and reached for his cock and started to stroke it, saying he should join me.
With that he knelt down in front of me and just took my cock in his mouth. I was suprised but really turned on, and i didn`t stop him.
It felt so good with my hard cock in his mouth as he sucked and licked me. I`d never been with a guy before and this was great.
I could feel my ball starting to get really tight and i knew he was going to make me cum.
I didnt know if he wanted me to cum in his mouth or not and i moaned to him to suck me harder as i was about to blow a big load in his mouth. He sucked harder and cupped my balls with his hand and i came for what seemed forever moaning with pleasure.
He kept sucking me for a while after i `d cum to get every last drop, then stood up and said, bet you feel better now, you better get home and next time we can have a longer session and i want you to fuck me.
I told him that was great and i`d meet him at the pub tomorrow night.
I went home wondering how that happened and feeling hornier than ever. I was thinking about meeting him again and had a wank before i went to sleep thinking about what i had just done and what was to cum the next day