What is it about male body hair?

Reckon I was fascinated in puberty as my body hair sprouted. Dark hair on my arms and legs, a thick bush and dark hair around my nipples. But when I first saw a really hairy guy in the locker room in Junior High, I popped a woodie and that night jacked off thinking about him - so hairy, his chest and his ass. Then when buying fuck magazines, I jacked off to photos of hairy guys with women. Shit Even got my nut looking at the underwear pages of Sears catalogue.

But why?

My dad was very hairy. As I boy I was fascinated by his hairy chest, back and ass. His crotch was so bushy his junk was hidden in a dark nest of hair. My older brother was as hairy as dad. But it wasn't until puberty the fetish took hold. The hairy arms of teachers intrigued me. The wisps of hair peeking over tee shirts. Then in high school, all the hairy chests and bushy crotches in the locker room made me have to hide my erection. The sour odor of the locker room was a turn on too.

but I still don't know why