im not sure if this is the same guy, but there is a guy who is a surfer and a photographer (he is really really cute!) and he has one also, and i saw pics of him and you cant see it at all, i would have thought that the top would peek out over his shorts, but it doesn't.
Surfers are brave anyway, lol.
Just a suit with a little skirt works also, and hides it well. If your suit you are ordering doesnt work for you. hope you like it!