I agree up to a point. When I got older and my balls began to hang lower and lower, my wife seemed to be more attracted to them as they droped. Started to grab hold of them during sex and would quite often just hold them and play with them before we went to slept. At first the reaction was for my balls to pull up, as you say a natural protective reaction. Realising that she liked them hanging I had to concentrate very hard at first to relax and let them dangle for her attention, it is very much a mental thing. I can now keep them hanging low for her quite easily.
Her interest in my dangly balls promted me to help nature along a bit by stretching with weights etc. My balls now hang even lower (see gallery) and although, as you say, they pull up a little at climax they are still hanging low enough to keep her interest. I read somewhere when I started out to stretch, that once you get below 6" of stretch the retraction is much reduced, My balls hang 10" from my groin so I think I can support this theory.
Stretching could be considered as against nature but balls do drop with age, all I have done is to hasten the ageing proces of my balls droping to about 150 years. Still at it so maybe get to 200.
cirus.
cirus.
