Funny song that may hit home for some of us.
https://www.youtube.com/watch?v=FFdtdVJYmxU
I guess I'm fortunate to still not have OMBS (Old Man Balls Syndrome) in my mid-60s. At this rate I still wouldn't if I lived 1,000 years. My secret? No boxers my whole life, except in basic training where I had to wear them. In gym class at school, all of us wearing briefs didn't have to wear a jock, so I never even owned one. It's a good thing too. I would have gotten my older brother's hand-me-down like I did for the rest of my clothes.

And I never jumped out of a plane or bungee jumped, or anything else that would cause various body parts to come to a stop at different times.
Read at your own risk! There was one incident I'd rather forget that happened while riding my ATV in ~100 degree heat (a few years ago?). When I came down after hitting a big bump and my butt hit the seat, there was a slight amount of "interference".

When the air temperature is a few degrees above body temperature, there's a little slack. I know, TMI!