I was now truly fucking a woman’s sex. Far from masturbation, a level above oral, and the step right after penetration. I moved my waist wildly, pounding her tight pussy with all I had. The rush of pleasure applied to us both as we experienced the first mating of our lives.
I tried to push my little penis as far as possible inside her hole while she remained passive, the way she learned from her voyeurism. This was also something I would need to teach these prehistoric women, but now wasn’t the time.
The feeling of her lewd flesh around my penetrating boner was just too good. After a specific thrust, her cunt contracted around me by reflex, and that pushed me over the top. I cummed into her twat with a groan of pleasure, shivers running through my spine. My sex tried hard to send non-existent sperm inside her, to no avail.
She noticed my orgasm because hers followed right after. With a light moan of pleasure, her already thigh sex squeezed me even further, her climax accompanied by yet another wave of warm female fluids.
We enjoyed our almost simultaneous climaxes together, our trembling bodies mixing into one. Her medium-sized boobs wriggled erotically every time she spasmed, forcing me to come even longer.
When we were done, I stayed inside her warmth while plopping myself onto her chest. I put my mouth on one of her nipples and suckled on it, appreciating her light and slightly sweaty taste. As if in reflex, she put a hand over my head and caressed my hair, watching me sucking her boobs wordlessly.
Once our breathing returned to normal, we cleaned ourselves silently and went back to the common cave. From start to finish, we hadn’t exchanged a single word, which felt like a fresh experience.
This was how I lost my two lives' worth of virginity. I hadn’t planned to lose it like that, but that was fine. It was better to take life as it went and ride the flow of events.
From then on, whenever Ursi and I were in the same cave and she noticed a man taking a woman for mating, she would stare at me for a long time before following them. I would do the same, meeting her in front of the hole. There, I would fuck her pussy while she would watch the man mate with the woman. She soon grew addicted to our fun, to the point that, after some time, she didn’t even go watch them if I wasn’t able to accompany her.
Time passed quickly, and I was now eight. During combat training, we started to use stone spears more often. Even if we were injured, there were shamans in the clan who could heal us, so that wasn’t a big issue.
The main problem was the stone spears themselves. Their durability was just too abysmal! Here we were, warriors and warriors in training, throwing those spears with force far surpassing what a normal human could do. These spears were just a sharp stone attached to a wooden shaft with solid vines. There was no way they would resist anything we did to them.
Of course, the main idea was to propagate our magical energy to the spears and allow them to be much more powerful than otherwise. However, we younger ones were still far from being able to do so. And then, even if we did, that didn’t stop the spears from breaking anyway, just like how it happened during warrior Kalam's annual demonstration. No matter how I saw things, the spears were just too fragile. The problem was that these spears were the state of the art in the clan’s technology. There was nothing better! Some warriors even boasted about finding slightly stronger stones or vines for their spears and whatnot, which always made me want to cry.
On top of that, this forced the women to continuously produce stone spears for us, which was an incredible loss of time and efficiency.
I thought hard and harder about this problem, analyzing it from all angles. Obviously, finding stronger stones or vines was ridiculous. It was like getting a five percent bonus durability to your weapon when you needed at least a one- or two-hundred percent increase.
As someone from a much more modern era, the solution was “simple”. Of course, we needed to use better materials, like metal, for example. The real issue was that we didn’t have any, and even if we did, we wouldn’t know what to do with them. Smithing didn’t even exist in this ancestral world. Material transformation was in its most infantile state, where creating clothes from pelts was nothing short of a technological miracle.
It didn’t help that shamans and magic existed. For example, no one really knew how to start a fire without magic. And why would they? A bit of fire magic did the job in a matter of seconds.
Eventually, an idea came to my mind in the middle of a sexual lesson. As expected, sex was always the answer. Right as Ursi came from my cock, she scratched the ground of the cave, leaving a mark there. At that moment, a flash of inspiration I didn’t know I possessed flowed back from somewhere unknown. Weren’t metals coming from the earth in the first place? And wasn’t I precisely an earth shaman? Maybe I could use magical energy to extract metals from the earth? I heard somewhere that the soil and rocks were full of metals. Wouldn’t it be even truer in this world that was completely unexploited for its resources?
Right after Ursi and I helped finish cleaning each other’s sexual organs, I excitedly ran to an isolated place to start my experiments. Where I was didn’t matter too much since the ground was everywhere. I just wanted a bit of quiet. If I were to appear in some of the common caves, there was a good chance I would be taken by one of my three sexual partners for some more sex. And I never refused to teach them more about the topic, as a matter of principle.