Rosa’s Weapons: Mars Engineering

The Mars orbital platform’s gravity was a perfect 0.38g - enough to keep coffee in cups but not enough to hide Rosa’s practiced movements. She’d recalibrated her walk, letting the low gravity turn each step into a controlled glide.

Engineer Voss worked alone in Observatory Seven, surrounded by holographic schematics of the consciousness transfer protocols. Post-human, like all Mars natives - genetically optimized, emotionally regulated, supposedly beyond primitive urges.

Rosa had done her research. Voss had been human once, before the augmentations. The reptilian brain was still there, buried under layers of engineering. She just had to find the right frequency.

“Dr. Voss?” She spoke in pure mathematics, modulating her voice to the harmonic frequencies that bypassed conscious thought. “I’m the consciousness specialist from Earth. Your office said I’d find you here.”

He didn’t look up from his displays. “You’re seven hours early.”

“I don’t sleep well in artificial gravity.” Truth, delivered like a weapon. She moved into his peripheral vision, wearing a bodysuit that should have been utilitarian but clung to her engineered curves. Mars fashion - practical sexlessness that made the body beneath more intriguing.

“Sleep is inefficient.” His fingers danced through light, adjusting parameters. “We’ve edited out the need.”

“But not the dreams.” She stepped closer, close enough for her pheromones to register. Specially designed, keyed to his specific genetic markers. “I’ve seen your REM patterns in the medical files. You dream about Earth. About being human.”

His hands stilled. “That’s classified data.”

“Everything’s classified. That’s why they sent me.” She reached past him, manipulating his hologram with practiced ease. “Your consciousness protocols have a flaw. They’re trying to eliminate the human element, but it’s the chaos that makes the transfer work.”

“Impossible.” But he was looking at her now. Gray eyes with the telltale gleam of neural implants, scanning her. “Show me.”

Rosa smiled, moved her fingers through his data streams. Each gesture calculated to display competence and curves simultaneously. “The error is here - you’re treating consciousness like software, but it’s wetware. Messy. Biological.”

She pulled up her own brain scans, let him see the unusual patterns. “I’m an anomaly. My consciousness doesn’t anchor properly. It’s why I can slip between realities without the usual... attachments.”

“Fascinating.” He leaned forward, and she caught it - the micro-dilation of his pupils, the 0.3-degree increase in skin temperature. Even post-humans had tells.

“Want to see something really fascinating?” She reached for his hand, placed it on her temple. “Direct neural interface. No filters.”

He should have refused. Protocol demanded isolation barriers. But curiosity - that most human of traits - overrode his engineering.

The connection blazed open. Rosa fed him carefully crafted experiences - not sexual, that would trigger his defenses. Instead: the taste of real coffee on Earth, the weight of full gravity, the chaos of unregulated emotion. Everything Mars had edited out.

“Fuck.” The profanity escaped before his linguistic filters could catch it. His hand tightened on her skull.

“You feel it.” She pressed closer, her breath on his neck. “The humanity you’ve been trying to delete. It’s still there, Voss. Still hungry.”

“This is... manipulation.” But he wasn’t pulling away.

“Everything’s manipulation.” She guided his other hand to her waist, felt his fingers flex against the bodysuit. “The question is whether you want to remember what it feels like.”

She kissed him then, pouring Earth into his mouth - chaos and sweat and need. His response was immediate, desperate, four years of suppressed humanity flooding back. He lifted her onto the console, holograms scattering around them like broken stars.

“I can’t—“ He fought his conditioning even as he pressed between her thighs. “The protocols—“

“Fuck the protocols.” She wrapped her legs around him, felt him hard despite all his engineering. “For once in your optimized life, just feel.”

He broke. Hands tearing at her bodysuit, mouth hot on her throat. Rosa catalogued his responses, adjusted her performance. When he entered her, it was with a groan that belonged to the man he’d been before Mars claimed him.

She rode him on the observation deck, Earth hanging blue and broken in the viewport behind them. Each thrust a rebellion against his programming, each gasp a crack in his post-human shell. Rosa felt nothing but professional satisfaction, but she gave him everything - screamed his name, raked his optimized skin, came around him with convincing convulsions.

“The protocols,” she gasped in his ear as he shuddered inside her. “You’ll give me access. To save the consciousness project.”

“Yes.” He was crying - actual tears, another edited-out response returning. “Anything. Just... don’t stop making me feel.”

She held him as he shook, this broken god of Mars remembering he’d once been mud. His access codes flowed into her mind, along with his gratitude and his shame.

Later, after she’d dressed and downloaded what she needed, she left him one gift. A small subroutine that would randomly fire his human memories. Not enough to compromise his work, just enough to remember that he’d once been real.

He’d think of her every time it triggered. The Earth woman who’d hacked his humanity through his cock. It would torment him and save him in equal measure.

Rosa took the transport back to Earth with a head full of Mars secrets and a body that felt nothing but the pleasant ache of a job well done. Behind her, Voss stared at the blue planet and remembered what it meant to want.