Sounds like an anxiety issue to me.
Monkeys will chronically masturbate when caged. lol
Guess it lends itself to the saying of ‘use it, or lose it!’
I like to diversify in my compulsions, masturbate one day, eat ice cream the next, drink wine on the 3rd day, make brownies on the 4th, rinse and repeat. haha
Haha..I make hedonism into an art form, I have every intention of using up my body and sliding out sideways, wine in one hand and a brownie in the other, interspersed with really good food! ;-)
Would be interesting if you had measured thirty years ago and again these present days.
I wouldn’t be surprised if all that, excuse my French, jerking, had added some inches.