My first time sucking another guys cock.

I remember the first time I sucked a dick. I was 16 years old but looked older so I was able to go into the porn store without getting carded. I had been to the back booths a few times to jerk off and saw other people jerking off in the booths with the doors open so you could see them when you walked by. I liked the idea of someone watching me jerk off so I left the door unlocked a few times and someone would open the door and watch for a second or two then close the door and leave. After doing this a few times I decided to get completely naked and jerk off with the door slightly open. A few guys came by and opened the door and watched for a minute or two before moving on just like before but the next guy that came by didn’t stay in the hallway. After watching me jerk off for a few seconds, he came into the room then closed and locked the door. I told him he could watch if he wanted and he said ok as he pulled his cock out of his pants and started to play with it. He wasn’t hard all the way when he first took it out but I could immediately see that it was a few inches longer than mine and quite thick. I was sitting in the chair butt naked jerking off as his cock quickly became hard as a rock. First he put the head of his cock right in front of my mouth and I turned my head away from it before it hit my lips. He laughed a little bit as he grabbed the back of my head with both of his hands and turned my head towards his throbbing cock and pushed it against my lips. I opened up my mouth and let him slide his cock in until I started to gag then pulled back. Once my mouth got to the tip of his fat cockhead he pulled my head back down onto his dick. I kept jerking my dick while this 50 something year old guy continued to fuck my face with his big cock for 5 or ten minutes until I got it out of my mouth and told him not to cum in my mouth. He laughed the same way he did when I turned my head away as he grabbed my head again and shoved his big dick back in my mouth and said sure, no problem or something like that. I knew he wasn’t going to pull his cock out of my mouth before cumming and I was right. I could feel his big dick getting harder and harder as he continued to fuck my face faster and faster. I was pretty sure that he was about to cum by how hard and fast his big cock head was throbbing in my mouth but I didn’t even try to take it out of my mouth. I continued to let him fuck my face until the huge spurts of jizz stopped filling my mouth and waited for him to take his cock out of my mouth before swallowing the rest of his jizz that I didn’t end up swallowing when he shoved his cock down my throat. He put his cock back in his pants and laughed again as he said thanks and left as I continued to jerk off. I quickly came as I sat in the dark booth by myself with some porn on the tv, butt naked with his wet cum still drying on my lips and chin then cleaned up and left. I’d love to hear everyone else’s story of their first blowjob.