Umm. To let people know, some primates in the wild reach sexual maturity at the age of 1 year. Goku has reached this age in terms of being a Saiya-jin.
Age: September 742
The day after Gohan died, it was bright and sunny. There was not a cloud in the sky, and the scent of the air had only the greenery and river that lay in the mountains. It was as though the world did not know that they had just lost the only person that Goku cared about. Goku did his best to re-enact the only ceremony that he had truly taken part in on Planet Vegeta.
The funeral for Gine's dam was a somber one. They took her to the beach where her progenitor was born, and there she was emptied of her inner organs, stones placed in her belly, and her corsage was tossed into the waves of the calm ocean. Her organs were then placed in a special jar and buried in the sand. Goku couldn't remember the sensation of it now, but he had licked at her blood on his hands, out of curiosity. For once, no-one scolded him, and he saw as his family unit did the same. It was a ceremony for a loss of blood-kin, and this was a Kyū Kon funeral; from the ocean they came, and to the ocean they would return.
He'd give Gohan the Moto funeral, one that bore semblance to the Yasai burial. He dug the hole where his caretaker... his grandfather would be buried. It was right by the marker that bore the elder's name, the one that stood in front of their little home. He was silent as he carried his grandfather's corsage as best as he could, carefully placing him in it - though it wasn't like he was going to wake up again - and proceeded to think of the pride and humble-ness that Gohan had lived with. He wailed at the sky, the sky that was still so blue and clear even though his grandfather was gone. It paid no mind to his broken bones or bruised face... It treated this death like the universe had treated the deaths of his people.
It was an ordinary day.
May 745
Goku didn't know how many years in the mountains he had stayed alone. He knew that the seasons had changed several times since Gohan had died, and he had had to patch the roof several times.
He would do everything that his grandfather had taught him. In the morning, he would train, hunt, and he would go over what little bit he could read. He would also use his scouter to assist him with such things, because sometimes his mathematics got the best of him. Gohan had told him that he may look three years old, but he was the size of a seven or eight-year-old, so Goku began counting his age from then. He'd be eleven soon.
As he went to fish by the river, Goku noticed a scent that he'd noticed before but had never really cared for. It was... sweeter, somehow.
He carefully, quietly went into the forest, looking for the source of the scent. He heard the small noises of the animals, but there was a tone in the voices that seemed to be hungry for something. The scent, he realized, was one of many, and all around him, the animals smelt of hunger, protectiveness, and wishes.
Goku, frowning in curiosity, jumped into the trees, hoping to find an explanation. He did find one, in monkeys.
It wasn't what he was expecting.
The male was climbing over the female's back, hooting and making noises that he remembered Raditz making at Vegeta once. Except, while his brother and mate began to fight right after, the female monkey turned and grinned a fanged-grin. She chittered slightly and turned away again, moving along slowly, waiting for her friend. Goku blinked as the male jumped onto the female's back, leaving the female to grip at the bark of the tree that they were balancing in. Goku saw as the male-
'Why did he put his... thing in her? Why there?'
Goku felt the scent assault his nose again, and he found a warmth in his belly that he could not describe well as he saw the male shift his hips forward and backward, like he was trying to stuff something into the female, while the female stood stoically. After a few more thrusts, the male dismounted the female and they took off again through the trees. Goku bit his lip, following them. He saw them do this a few more times, in the trees and on the ground, before they stopped altogether and joined their party.
He returned to the river.
What did that mean? Why did they come together like that?
"He courted her, as all males do, and she responded favorably to both forms he held. Under the Blood of Red Moon, they coupled."
Was that what coupling was? Gohan had mentioned that he wanted Goku to have children, to meet a girl and have children that the old man could coddle. Was that how it happened? That was how he could have a family unit of his own?
Goku began to take off his clothes, his stomach demanding attention, but he was first trying to relieve the warmth and pressure in his belly. He smiled sadly.
There was no female for him to couple with, to mate with, and his mates were gone.
He pressed his fingers to his own hard flesh and he moaned quietly as he stroked himself. Suddenly the small breeze against his body seemed to make his body hyper-sensitive. He was getting gooseflesh and he was feeling empty and full all at the same time. Reaching up to the small rock where he had laid his clothes and Nyoi-Bo, he turned himself to kneel, his bottom sticking up in the air. He noticed that his tail wasn't moving like it usually did; instead, it fell off to the side. He whimpered as he tried to think straight, but his hands were going anywhere and everywhere. They danced on his chest, making him support himself by planting his cheek against the smooth rock. They danced by his hips, making him thrust slightly, like he had seen the male earlier.
One hand dared to go downward towards his bottom, and he shivered at the strange wetness that seemed to be coming out of his body. He touched the source of it, and he thoughtlessly shoved a finger inside. His cries were loud and wordless, especially as his other hand wrapped around his penis, the part of him that felt full and wanted to be put into...
His mind sent him a thought, the image of a body, and he groaned in confusion. He was imagining thrusting into Vegeta, and his fingers - another had joined the first that he had thrust into his body, and they were moving now - were pretending to be Raditz. When he put another finger, because two didn't seem to be enough anymore, he forgot about thrusting into his imaginary Vegeta and imagined both Vegeta and his brother stuffing him full. He knew that he was squeezing his eyes so hard that tears were coming out, but he couldn't help it. He was trying to go even deeper, to a spot that his body told him didn't exist.
He wanted to bite something, something that he could do to relieve his stress, but he only found himself with a bloodied lip.
Suddenly, the pressure was gone, and he found himself stuffed and emptied. He looked down and saw white fluid on the ground. His fingers, once he pulled them out of his body and looked, were covered in sweet-smelling stickiness.
He heard Raditz and Vegeta sighing contentedly.
He smiled and wiped his hands off on the grass.
Goku went fishing.
