The first male
ejaculate is called the leopard nut. The leopard nut is called as such because it allowed men to nut and run very quickly out of danger after
doing the deed... much to the dismay of many women. The true test of male sexual stamina should be the nut that follows the leopard nut. Think of the leopard nut as an appatizer before the main course.
The leopard nut allowed mankind to reproduce quickly before a leopard/large predator could eat them.
That's why men cum quickly on the first go...