Anonymous ID: 345a3d March 23, 2021, 4:25 p.m. No.13284599   🗄️.is 🔗kun   >>4626

>>13284440

>Why do sacks have wrinkles on them? It doesn't make sense.

Of course it makes sense.

Sperm is very thermosensitive and must therefore be well regulated. The scrotum contains loose skin to allow it to contract and draw the testes closer to the body when it's cold and retract away from the body when it is hot.

If your sack had no wrinkles, you'd be sterile.