When I was a teenager, I lived next door to this really hot blonde. Now she was never careful with covering up her panties. I would constantly see up her skirt, shorts, etc.
One day both her and her sister (who was also fairly hot) both her their underwear showing and were both chanting, "I see London I see France..." I found out later that they were just doing this so they could see how big my package was when it was aroused. Since I was wearing a certain pair of shorts, it was obvious. I also found out later that they were very impressed by its size.
Even though that was embarrassing, one day I got to see the hot blonde in a bathing suit. It was just a one piece but when she bent over I was able to see the majority of her huge boobs. I told her that she had a nice rack. It was her turn to be embarrassed!