I have to throw in with everyone who mentioned Berlin.
It was about 10 years ago, I went to Germany for a couple of weeks to visit a friend. (Straight boy, no sex for me.) I got bored and horny about 10 days in, lefta a note saying I was going to Berlin, be back in a couple of days.
I did a little research at an internet cafe, and was on the train. I found a bar called Tom's Bar, as I recall, had some good beer and wandered into their darkroom. Not very busy, so I wandered around, went back for another drink. Ran into an American couple at the bar. Both early thirtys, fit and clean cut looking. (Just my type.)
We shared a drink and I escorted them into the darkroom where there were quite a few more guys sucking and as we got further from the entrance, fucking around. We stopped to watch two guys really going at it. The top was really pounding the shit out of his bottom. I couldn't take my eyes off them, and I am hard as a rock by this time. I notice hands staring to rub my ass through my pants. It is my new American friends.
I undid my pants and let them fall to my ankles. My new friends are all over my tight ass and before long I am bent over holding on to the wall for all I am worth as a tongue is being rammed up my tight ass. While the other American is feeding me his cock, and goading his partner and I on.
It wasn't long before the tongue in my ass was replaced with a big bare cock.
With one cock pounding away at my ass, and another filling my mouth, I was in heaven. All too soon I could hear his breathing speed up, and his pumping become more frantic. I was almost disappointed when I felt the wetness of his cum in my hole, I wanted the fuck to last forever.
Little did I know I was far from done. I was quickly spun around and the guy who was in my mouth started fucking my cum filled ass.
We had quite an audience by this time. and I quickly had another cock in my mouth.
Before I left the dark room I had 6 loads in my ass, and 2 down my throat.
I have never needed a beer more than I did at that moment.
I ram into my American friends at the bar and they invited me back to their hotel room. Of course I accepted.