Evolution, Sex, Survival | The Truth About How We Got Here

The idea to write this post came out of my curiosity. From that curiosity, I dug deeper and found myself lost in a maze of intricate details. My curiosity was simple—how did we, the human race, end up here as we are?

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The answer is simple. We all exist because millions of people in the past had sex. Long before the existence of houses, rooms, wedding vows, and religions, hominins had sex in caves, open fields, and everywhere under the open skies. They had sex, but not modestly. Some did it tenderly or urgently. Some did it in a group and in the presence of their children. There were no rooms, no privacy, and no moral police. Back then it was just skin against skin and purely instinctual. We all survived to this day because of it. 

Our prehistoric ancestors didn’t just reproduce. They experienced pleasure too. They touched and explored like we do. Women experienced orgasms because pleasure wasn’t invented in the modern age. Pleasure is primordial. It’s embedded in our DNA just like fear and hunger. The clitoris, for instance, is designed solely for pleasure. Imagine that—a part of the female anatomy with over 8,000 nerve endings (twice that of the penis) exists only for pleasure. It is proof that nature didn’t just want us to breed and multiply. It wanted us to feel and enjoy intimacy too. 

Cavewomen may have lived hard, brutal lives, but they enjoyed pleasure just like we do. I like to imagine a cavewoman with her lover between her legs. And maybe others watched and joined them too. It wasn’t a perversion the way we interpret it now. It was simply being human.

I wonder if they had rituals and regarded sex as a celebration.

Shame, after all, is a recent invention. Shame associated with sex probably didn’t exist then. Cave people indulged themselves as and when they wanted. They bred, fought one another, and fought wild beasts to survive. The law of natural selection was at its peak during this period. Over time, with sperm competition in promiscuous mating systems, their genitals evolved. Natural selection favored a penis tip that could:

  • Displace rival semen using its flared ridge during thrusting
  • Create suction during withdrawal to pull competing fluid away from the cervix
  • Deliver deep, firm contact at the most fertile zone during ejaculation
  • Enhance female pleasure, because a woman who enjoys sex is more likely to return to the same partner

Amazing, isn’t it? The couple who made love the most wasn’t simply indulging. They were participating in the law of natural selection. They were selecting, refining, and perfecting the best genes to pass on to their future generations—us.

But these intense competitions existed long before religion taught us to shrink ourselves. Before religion, humans expanded in wild abandon and touched one another without apology. And somehow, in my opinion, the rawness of it feels more evolved than the shame-laced silences we carry today. 

I’m writing this out of curiosity and also because I want to remember. I want to remember that pleasure is part of our design. We exist today not just because our ancestors fought and survived but because they felt pleasure and indulged in intimacy. 

And somewhere, deep in our bones, I think we still remember what it felt like to be touched under the open skies, with no shame and no walls. 

Maybe it’s time we listened.


A 2021 BBC article titled ‘Here’s What Sex with Neanderthals Was Like’ explores how interbreeding between Homo sapiens and Neanderthals was not only real but frequent enough that most of us today carry traces of Neanderthal DNA. The piece confirms that sex among early human species was driven by instinct, opportunity, and survival—often without the moral or religious constructs that now dominate our understanding of intimacy. It even suggests that some encounters may have been tender or neutral, while others may not have been consensual by today’s standards. But the point remains: pleasure, reproduction, and adaptation were intricately linked. And some Neanderthal genes—particularly those associated with fertility—were naturally selected against, showing how deeply evolutionary biology shaped not only who we became, but how we love, bond, and survive.

Note: If you believe open discussion of sex is taboo, feel free to skip this post. Everything here is grounded in biology and human history—not smut or erotica. Just facts, perspective, and a little reverence for the bodies that brought us here.

Fragments of Obsession III

Obsession is not just in longing; it’s also loving him in fragments. Here’s a series of short fragmented thoughts about him—scattered images, sensations, memories, desires. They are pieces of my obsession.

Part one – Fragments of Obsession | Part two – Fragments of Obsession 2

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  • His hair gently brushing his forehead, blown by the fan as he sleeps on our bed.
  • Him standing on the kitchen sink washing the dishes after dinner. The slope of his bare shoulders, the muscles on his back, the scratches I made, naked except for his dark boxers.
  • The way he hums as he unloads the laundry.
  • He sits on the couch, shirtless, scrolling through the reels, smirking, chuckling depending on what he watches.
  • His prolonged silence after I uttered some cutting remarks.
  • The way my eyes drift lower, tracing the shift of fabric, wondering what lies beneath.
  • As he passes me on the way to the bathroom, I reach out, my fingers grazing over him in a teasing touch.
  • The curve of his shoulder in the half-light when we took a nap in the afternoon.
  • The way he stares at me, intense and serious, before he smiles.
  • The way his voice cracks when he’s tired, rough and tender at the edges.
  • The smell of earth and salt on his skin after rain.
  • As he shifts in his sleep, the fabric rides up, revealing just enough to make my breath catch.
  • The smell of his skin after a shower.
  • His hands, always his hands, calloused and tender, mapping my body in the late afternoon while the curtain gently blew by the breeze.
  • His gentle snores, and sometimes he snorted while sleeping. Depending on how tired I am, it either amuses me or annoys me.
  • The way he looks at me when he thinks I am not watching.
  • I gently kiss his scars on his arms and chest.
  • The taste of his lips.
  • The heat of his body against mine. The weight of his arm across my waist while spooning.
  • The sound of his key in the door. I could hear it jangle as he exited the lift.
  • The shadow of his stubble in the morning.
  • The sound of his footsteps faded down the hall.
  • The way he holds my legs and rests them on his shoulders, his breath mingling with mine as we dissolve into one another.
  • The way his mouth finds me, his tongue teasing, drawing a gasp from my lips.
  • The way he looks at the ocean and squeezes my hand gently.
  • The way his eyes turn dark after a desperate “I love you” right before he shatters.
  • The way he says “look at me” right before I unravel.
  • The way he moves through a room.
  • His pain and grief over the people he couldn’t save.
  • The emptiness he leaves behind, a hollow I carry with me, a shape I can’t stop trying to fill.

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