I also have been known to have this problem when swimming.
I know that it is embarrassing to have others see your penis outline in your shorts if it in an inappropriate environment especially like with children present this can be a serious situation.
The wrong person could over-react and the next thing you know you are labeled and arrested as as sex predator. Nature will take its course and moments such as these are sure to happen.
The other day I was in a store and started to become semi-hard. The cashier was attractive and I am guessing a certain body part knew it.
The problem was I was only wearing basketball shorts (the mesh kind) with underarmor boxers underneath which was not much (any) support. I was trying to hide it to be polite to the female cashier but obviously she noticed because her reaction was obvious. After looking directly at my (shorts) she was quick to check me out and then ran to a co-worker to tell her. I overheard what was said and the co-worker looked over towards me too with a smile.
:redface: I was embarressed so much I accidently left my bag at the counter and went to the ATM across the aisle because I needed to check my balance for a pending deposit I was expecting. The cashier that checked me out before noticed I left my bag and called me over to get it.
As I did, I noticed her eyes checking me out yet again. I figured if she was not worried about it, I would not be either so I simply smiled at her and thanked her for reminding me about the bag.
The things I must endure.......