Party with my mates
My mates and I made a trip to a different city as a bachelor's party weekend for one of our mates. The first evening we all sat together and had some drinks. After some time we agreed to play a simple card game as a strip-game. Each round the loser had to take off a piece of clothing.
Some time went by, some had to take off more clothes than others: Most of my mates were still very much clothed but one other mate and me were just our last piece of underwear away from being fully nude. It's next round and I lost the game. So I stood up and pulled my pants down, right at my mates eyes height. They cheered loudly and laughed. My penis was small and my balls were compact. My mates really enjoyed their time, they clearly found it hilarious to have me sit butt naked amongst them (mostly clothed) with my little wiggly dick out.
Eventually conversation went back to normal and I was taking the punishment of losing the game by sitting fully naked amongst them for about 15 minutes. Then, we went to bed and I got dressed.
The rest of the bachelors weekend some of my mates brought up the situation at the most random times, laughing at the memory of the situation.
Even a few weeks later, at the wedding of our mate, they brought the topic up two times. It felt even more humiliating because we were all dressed up in nice clothes and we were with our wives/ girlfriends who haven't known about what happened at the bachelors weekend. They really made sure everyone, even other guests, knew how I had been naked that evening and how funny and hilarious it was to see me exposed like this.
Everyone who heard the talk of my mates (about a third of all the guests) looked at me and probably imagined me naked. Nobody said my dick was small, but their laughter and jokes were unmistakable. Some of their girlfriends and a few random guests were asking "Was he really?" Looks and nods exchanged. I saw all their eyes on me and stumbled "I had lost the game ... what could I do?"