Several million years pass, feeling only like days to you. You've seen live thrive on your surface, your seas, and even deep within your caverns for eons.
Sometimes you're lucky and the shifting of your own tectonic plates pleasure what you assume is whatever your prostate has turned into before, making you shoot literally astronomical amounts of cum that fertilize your surface and sometimes makes new species appear.
One such species develops from a cum blob that ran down your volcanic shaft, into a puddle of fresh water next to your genital biome, their evolution further improved by the radiation and sheer power emanating from your moon sized balls.
You watch their development with interest, your sperm cells acting like actual fish, before they develop legs and walk out of the puddle, becoming something akin to a giant monitor lizard. You see millions of these creatures living among the Kaiju sized monstrosities that live around your planetary shaft.
However, these lizard creatures are smart and know how to survive, hidden within your dense bioluminescent pubic forest.
Soon, they become rodent-like creatures, and before you realize, now they're large white furred apes the size of a Gigantopithecus each, with blue luminiscence in some parts of their bodies, specially their glowing eyes.
You feel joy knowing you're developing something akin to humans on your surface. In your pubes to be exact! Such a deep concept, the creation of mankind. Replicated by you letting cum drip off your foreskin!
The sense of power and scale is enough to make you orgasm. The whole planet shakes and the veins in your cock and balls glow with a bright blue light before you shoot a huge rope of cum into orbit. Thankfully, your sperm doesn't go to waste and instantly makes a barren rock of a planet into a grassy paradise.
The energy from your orgasm triggers the last change on the species, as they stand upright and become fully humanoid.
You feel joy as you examine them.
Men and women alike have thick, toned bodies with bulging muscles, and a height of around 10 feet on average. Their eyes glowing with a blue hue. Their skin and hair is very light, nearing white.
You take a close look at their ears, and you see they're very large and pointy!
You just cummed a race of elves into existence!
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Thousands of years pass since the apparition of the elvish creatures, they've expanded throughout the whole world building civilizations, but the most important is centered right at your own cock. You see castles, palaces and cities surrounding your phallus, temples worshipping your cock and specially your cum, with wells and mines extracting as much sperm and smegma as possible, which they use as fertilizer, building materials, and most importantly, subsistence, their powers rejuvenating, invigorating and nutritious.
They call it God's elixir. You're the god of these people.