First time skipping dipping cold May weather in a river

Well I guess it would warm things up. lol. I shared the story of the event. This was second or reposting of it. The repost it’s seems did not bring story (text) along with the photo… (see other copy of this photo on my page for the story) . Fun night night for me and a couple of friends. This was from a year ago.. going camping in a couple of weeks with three others, one being the main friend in story. I’m trying to think about a good reasons I would be naked in front of them. We wil be in tents near a lake… so to say at night “i’m going skinny dipping. Feel free to join either naked, swimsuit, or to watch…. Does not matter.” Is my current starting point.. To be the only one naked and playfully teased about it with photos is the goal.. of course if someone else wants to get naked and enjoy the moment great…. But with my friends, betting I’m the only one. Any thoughts on how to make this more playfully humiliating to me is very much welcomed…. I still masturbate 1 to 2 times a day…. So thinking about restraining from that for a day or two before the event. I’ll boner up super easy at that point.