The restroom

I'm a young gay male 24, out shopping and go into the men's room to pee. I am standing at one of the urinals, and an older guy comes in, he's in his 50's and takes the one right next to me, there are four
and I'm on the first one. He unzips and unbuckles his pants a bit and as I'm trying to look without being caught, he pulls out a long and fat cock, maybe 9 to 10 inches long. I'm done pissing but can't seem to move. He is pissing and leans back as if to show off his cock to me. I kind of turn and slowly put my small, (compared to his), cock and yes, he is looking. I'm at the sink watching him in the mirror and he turns around and slowly puts away his cock. He comes over to the sink right next to mine. He comes right out and says," do you like what you saw". I answer, " I sure did, Sir". He is very bold and asks, "think you can take it up your ass?" I answer," I'm pretty sure and I know it will hurt but also feel great". We end up going to his place and to my surprise he first sucks my cock and licks my ass, we also have some hot french kissing. I suck his cock,and my jaw is still sore but he doesn't cum. He lubs up my asshole and enters me. It takes my breath away at first. It takes time for him to get it in fully, once he does he fucks the hell out of me. He is really happy that I could take it all. I was surprised because I haven't been fucked for over a year. He now fucks about once a week.