Disappointed Him I Guess

When I was maybe 19 or 20 or so I used to go once in awhile to a xxx movie place in the next town. This one night my gf at the time was going to some shower or whatever, some women's thing with her family or friends. So I was alone for the night and for whatever reason my pals weren't around or were doing stuff I wasn't interested in.

So I get to the theater, this old fashioned huge movie place like they used to have back in the day. They had two big rooms with regular screens and theater seats, one was straight films and the other was gay films. They also had about two dozen booths that could easily fit up to four people but usually was just one guy watching a variety of pictures and stroking off alone.
Plenty of times someone would leave their door ajar or even partway open to say they wanted company. Some guys wanted to suck, some wanted to be sucked and some wanted to fuck or get fucked.

So this one night I'm about to go into a booth and this older man, maybe he was like in his 50s or so and he comes right up to me as I'm going into a booth and he says something with a heavy accent like he's some kind of foreigner, like how handsome I am and how he'd like to make me feel real good.
I figured he wanted to give me a blowjob and I was OK with it. I did have a three pack of Trojans because I didn't want to take a chance with people I didn't know. The ordinary STDs were bad enough but there was also HIV to worry about, so I wouldn't do anything uncovered.
Anyway, this guy comes in the booth with me and he latches the door and tells me to take off my shorts. I slip down my basketball shorts and my boxers and he starts to rub my nuts with one hand. I was really loving it and couldn't wait for him to start blowing me.
Then he tells me that he wants me to lick his balls and to suck his cock and he says that he knows I won't disappoint him.
Meanwhile I'm thinking he must be nuts if he thinks I'm gonna do him, but next thing I knew he was the one on his knees and he says he wants to get good and hard and he wants to eat me out first.
Next thing he's got his hands spreading my butt cheeks and he's fucking licking my asshole!
I never had a rim job at that time though I did love to lick my gf's sweet little asshole and make her go crazy.
Anyway, this old guy starts really eating out my ass and I'm stiff like crazy and I'm rubbing my dick while he's tongue fucking my asshole and it doesn't take too long before I'm blowing my load on the floor and cumming like mad.

After I cum I'm not interested in sucking him off and sure ain't gonna lick his old man ass or suck his balls. I pulled up my shorts and got outa there and figured he would find another dude to have some fun with.
Today I guess I was a dick and should have at least jerked him off and maybe if I got into it I would have got horny again and maybe I would have pleased him, but after I got a great climax I was done and I just went home with a smile on my face.