>>937266229when you're old enough, your body starts producing semen.
The semen can only live in your body for a certain amount of time.
For some people, it can live for months. For most, semen can live in the balls for only a few weeks.
When the semen dies, it has to be discarded.
Essentially, once every few weeks, you have to piss out a rock-hard and sharp ball of dead semen.
It smells gross, it looks gross, and it hurts like hell.