First choking

So I was going to Nashvegas for work and was feeling horny, had played a couple times with giving HJ one a little sucking, so I posted a ad for someone wanting a HJ , sure enough this guy replied and said he was close, he also asked if I would suck on him some and I said yes, well guys shows up as expected and has about a 7 inch thick cock, I am on my k was stroking him and little licking, he ask me to get in bed and then puts my head off the edge, now I’ve never done this so I’m new, he hand my hands beside me and did ya know if your palms are facing down you can’t pull em up if being help.. we now I do be cause he put his cock in my mouth and began to pump. At first he was slow and only couple inches, then he started pushing it down my throat, I was gagging, eyes watering and trying to get air, he let me get some air and then went right back to it, like balls on my nose and held it there for 30-45 seconds, he did this for about 10 min, asked if I was ready for his cum, heck I just wanted some air, he slammed it balls deep and finished there I never tasted or had to swallow.. he got up and told me to be ready next week. All I could stammer out was yes sir.