If it works, let me know maybe I'll try it. My advice may not be much help, but I hope it is. Then, if you're feeling confident and think you've gotten used to seeing your mates naked, just do the same thing you always do just without the suit. Talk to your friends (or teammates) about it if they ask why you're wearing a suit. That way, you get used to their nudity and if you do get an erection, the bathing suit will cover it up. If you want to try to do group showers, go to a pool (like the Y) ,and change in your bathing suit and shower with your friends a few times (even if they are naked). Also, a lot of people are nervous about getting an erection/boner in the shower with their friends there.
I am definatley agreeing with them that it is a shower, and nothing more, but I just think it would create a lot of awkwardness between people. I think a lot of people who use group showers have the mentality that it is just a shower, and nothing more. I have never had to take group showers with my friends, but occasionally (at resorts) I have had to get changed into a bathing suit but typically I either change in the rooms we have (before going to the pool house) or I change as fast as possible in a little corner. I'm 16 and like you (the original poster) I'm quite shy.
