[Sasaki's Apartment — Bedroom,]
He squeezed her thigh as he spoke, fingers pressing into the soft flesh just above her knee and dragging upward with deliberate, kneading force.
The sensation under his palm was obscene. Her thigh had exactly the right ratio of softness to resistance — plush enough to sink into, firm enough to push back, the skin beneath her jeans impossibly smooth even through the thin fabric. Like pressing his hand into sun-warmed mochi, pliable and yielding and alive. His thumb traced a slow arc along her inner thigh, and he felt the muscle twitch beneath the surface.
Right where I signed.
That was the key. His name, scrawled in the Lust Marker's shimmering ink across the pale canvas of her upper thigh — the characters still faintly visible through the gap where her jeans rode up. Every stroke of his fingers across that signature sent a current straight through her nervous system, something deeper than mere physical pleasure, something the pen had hardwired into her body's response architecture.
Ruri's reaction was immediate.
Her dark eyes, which had been glaring at him with the last shreds of her composure, went glassy. The sharp focus drained out of them like water through a cracked bowl, replaced by a wet, unfocused haze that made her irises look almost black in the low light. Her lips parted — the lower one trembling, bitten pink from the inside — and a string of helpless little sounds leaked out of her throat.
"Mmnh... hahh... nn..."
The noises were small, involuntary, pushed out of her chest like hiccups. Her head listed to one side. Her fingers, which had been balled into fists against her own knees, uncurled and went slack.
Then her tongue slid out.
Not far — just past the cushion of her lower lip, the tip pink and wet and shining in the lamplight. It rested there, slightly curled, as if her mouth had simply forgotten how to close. A thin strand of saliva caught the light between her tongue and her lip.
Sasaki's throat clicked.
God.
He leaned down before the thought even finished forming, closing the distance between them in one fluid motion. His mouth found hers — or more accurately, found her tongue, the exposed tip of it, and his lips sealed around it with a soft, wet sound.
"Mmmh—!" Ruri's back arched off the mattress. The moan vibrated directly against his tongue, a full-bodied tremor he tasted more than heard. Her head tipped backward into the pillow, exposing the pale column of her throat, and she pushed her tongue further into his mouth — further, eagerly — as though some deep animal part of her brain understood that offering more of herself meant receiving more of whatever was making her feel this way.
She's feeding it to me, Sasaki thought, and the realization sent a bolt of heat straight to his groin so intense his vision briefly whited out at the edges.
He sucked. Gently at first, then harder, drawing her tongue deeper between his lips, and she whimpered — "Nnhaa... mmph..." — and her hands, moving as if disconnected from conscious thought, floated up from the bedsheets and hooked around the back of his neck. Her fingers laced into his hair. She pulled him closer.
Their tongues wound together, slick and searching. He tasted green-apple candy and the faint mineral tang of her saliva, and beneath that something warmer, something that was just her — the specific flavor of Sato Ruri's mouth, which he was now cataloguing with the clinical detachment of a sommelier even as the rest of him burned.
Saliva pooled between their joined lips and spilled down her chin in a thin, glistening trail that caught the lamplight. She didn't notice. She didn't notice anything. Her eyes had fallen completely shut, her lashes dark crescents against flushed cheeks, and every few seconds her hips shifted against the mattress in a restless, unconscious rhythm.
I'm going to lose it.
His cock was straining against his zipper so hard it physically hurt — a thick, insistent pressure that throbbed in time with his heartbeat. He could feel himself leaking, the fabric of his boxers growing damp at the tip. Every wet sound their mouths made, every breathy moan she fed directly into his throat, every tiny movement of her hips sent another spike of arousal through him like a needle threading through his spine.
He wanted to fuck her. The thought was simple and overwhelming and occupied every available corner of his brain. He wanted to peel those jeans down her legs — slowly, watching the denim drag across his signature — and spread her thighs apart and sink into her until neither of them could think.
But.
The rational part of Sasaki's mind — the part that had gotten him this far, the part that thought in timelines and leverage and long-term returns — hauled itself up from beneath the flood of testosterone and planted its feet.
Not yet.
Ruri's obedience right now was chemical. Pharmacological. The Lust Marker's signature had turned her body into an instrument that only he could play, but her mind was still hers. If he fucked her now, while she was glazed and pliant and essentially drugged, what happened when the fog lifted? She'd remember everything. She'd feel the soreness, find the evidence, reconstruct the sequence of events with the ruthless clarity that smart girls always brought to their own violations.
She could report me. Attack me. Worse.
And then he'd lose her. Not just tonight, not just as a warm body, but as a source — a stable, renewable source of Scumbag Points, the currency his system ran on. Ruri Sato, with her pride and her temper and her stubborn refusal to admit what her body already knew, was the perfect long-term investment. Breaking her too early would be like Lelouch burning his Geass on a stranger in episode two.
Patience.
The Lust Marker's signature lasted ten days. Only his touch activated the full effect — when Ruri touched the signed area herself, she'd feel a shadow of the pleasure, an echo, enough to make her breath catch and her thoughts scatter but never enough to satisfy. And if anyone else touched her there? Nothing. Zero. As sexually responsive as a brick wall.
Which meant that for the next ten days, Sasaki Fuyumi would be the only person on the planet capable of making Ruri Sato feel good.
Think about that. A girl whose most sensitive spots only respond to one specific boy. Who shivers when he touches her, who aches when he stops, who lies awake at night pressing her own fingers against the fading ink and thinking his name because that's the only way to feel even a fraction of what he gives her freely. Ten days of that. Twenty, if he re-signs. Thirty.
How long before she stops fighting it? How long before she comes to me on her own?
Even when she touched herself — when she was alone in her room, hand sliding guiltily beneath her waistband, fingers seeking the spot that burned with his name — the pleasure would cap at seventy percent, maybe eighty. Enough to drive her insane. Never enough to finish.
And who would she think about, in that moment?
The answer made his pulse kick.
She can't hate me if she comes moaning my name.
He broke the kiss.
It took genuine, physical effort — like tearing adhesive from skin. He had to plant his hand against the mattress beside her head and push himself upward, and even then the strand of saliva connecting their tongues stretched and held for a long, glistening moment before it snapped. His chest heaved. His lips were swollen and wet and tasted like her.
Ruri looked wrecked.
Her mouth hung open, chest pumping with ragged, shallow breaths — "Hahh... hahh... hahh..." — each exhale fogging faintly in the cool room air. Saliva coated her lips and chin in a messy, gleaming smear. Her eyes were half-lidded, unfocused, the dark irises swimming in a film of tears that hadn't quite fallen. Her cheeks blazed scarlet from jawline to cheekbone, and stray hairs clung to the dampness at her temples. She looked simultaneously debauched and desperately innocent — a girl who'd been kissed so thoroughly she'd forgotten her own name, staring up at him with the baffled, tear-bright eyes of someone who didn't understand what had just happened to her.
Cute enough to eat alive.
Sasaki swallowed. His hand was still on her thigh — hadn't left it — and he gave the soft flesh another deliberate squeeze.
"Still going to tell me you're not a pervert?" He wiped his mouth with the back of his free hand, making a show of disgust. "You stuck your tongue in my mouth, you know. On your own. That's what they call a French kiss in those shoujo manga you read, right?" He sniffed, theatrical, lip curling. "I can still taste your spit. Gross."
She initiated the tongue. She pulled me closer. Let her sit with that.
Ruri stared at him.
The haze in her eyes was thinning — not gone, not even close, but thinning enough that the gears of her conscious mind had begun to grind again, slowly, painfully, like a machine restarting after a power surge. He watched the sequence play across her face in real time: confusion, then recall, then the specific brand of wide-eyed horror that came from remembering something you'd done while not quite yourself.
I moaned, her expression said. I opened my mouth. I wrapped my arms around his neck. I pushed my tongue into—
Her face turned the color of a strawberry, vivid and total, from her collarbones to the tips of her ears.
Oh god. Oh god oh god oh god. I kissed him back. I KISSED HIM BACK. I— my tongue— in his—
She looked like she wanted to die. Specifically, she looked like she wanted the bed to swallow her whole, digest her over a thousand years, and deposit her remains in a dimension where no one had ever heard of French kissing.
Sasaki pinched her thigh.
"Hyaahh—!" The sound ripped out of her before she could stop it — sharp, breathy, unmistakably a moan of pleasure. Ruri slapped both hands over her mouth, eyes flying wide with panic.
"Do you like it when I touch your leg?" Sasaki leaned in close, so close his nose nearly brushed hers. His eyes bored into her flushed, mortified face. "Hmm?"
"Mmph— y-your face is too close—!" The words came muffled through her fingers. She squeezed her eyes shut, turning her head to the side, her whole body rigid with embarrassment.
"Open your eyes and look at me." His voice dropped, flat and commanding. His hand resumed its slow, firm kneading of her thigh, fingers working the soft flesh in circles that pressed directly against the hidden signature.
The effect was instantaneous. The tension in her body didn't relax so much as redirect — her spine stayed rigid, but her hips canted toward his hand, a tiny involuntary motion she probably didn't even register. Her breathing hitched, then stuttered, then dissolved into shallow, rapid gulps. Behind her closed eyelids, her eyes were moving, rolling, and a thin crease of anguished pleasure had appeared between her brows.
She shook her head violently. Kept her eyes shut.
I won't look. I won't. If I don't look at him, if I don't see his face, then this isn't— I'm not— this doesn't mean—
Sasaki stopped.
His hand lifted cleanly from her thigh, and the sudden absence of contact hit Ruri like a physical blow. Her entire body went cold. The warmth, the pressure, the deep-tissue pleasure that had been radiating outward from his touch like ripples in hot water — gone. Replaced by a hollow, gnawing need that settled in her lower belly and pulsed there, ugly and undeniable.
Her eyes snapped open.
She found Sasaki smiling at her. Not warmly. The smile sat crooked on his face, sharp at the edges, the smile of a boy who'd just proven a hypothesis.
"You want me to keep touching you." Not a question.
"N-no—!" Ruri bit her lip so hard the skin went white. She shook her head again, mechanical, desperate, her loosened ponytail whipping against the pillow. "I don't— I never—"
"No? Then what was that just now? Why'd you open your eyes the second I stopped?" He poked her thigh with one finger. A single, precise press against the signed area.
"Nnnhh—!" The moan punched through her clenched teeth. She clapped her hands over her mouth again, and this time the look in her eyes was genuine terror — not of him, but of herself. Of the sound she'd just made. Of the electric, liquid pleasure that a single fingertip on her thigh had sent cascading through her body like a lit fuse racing toward something she didn't want to name.
Why does it feel like this? Why does it feel so GOOD when he touches me there? It's just my leg. It's JUST my leg. What's wrong with me? Am I really— do I actually— do I WANT him to—
She couldn't finish the thought.
Sasaki placed his full palm back on her thigh. Pressed down. Began to knead again, slower this time, almost tender, the heel of his hand grinding in deep, lazy circles while his fingers curled around the inner curve of her leg.
"You said you're not a pervert, right?" His voice was silk over gravel, low enough that she had to strain to hear it even though he was inches away. "Prove it. Don't make a sound."
I dare you.
Ruri clamped her hands tighter over her mouth. Above them, her eyes burned with defiant determination — wet, red-rimmed, but furious. She glared at him as if sheer willpower could override whatever her body was doing.
I'm not a pervert. I'm NOT. I won't moan. I won't give him the satisfaction. I won't—
She held for fifteen seconds.
His hand worked her thigh with practiced patience, alternating between firm squeezes that compressed the signed flesh and lighter, teasing strokes that barely grazed the surface — and each variation sent a different flavor of sensation jolting through her nervous system, sweet then sharp then sweet again, unpredictable, impossible to brace against.
Her chest began to heave. The swell of her breasts rose and fell beneath her sweater in rapid, visible surges, her nipples pressing hard against the knit fabric with each inhale. Her thighs pressed together around his hand, not to push him away but to trap him there, to increase the pressure, and she didn't even realize she was doing it.
I can't— it's too— every time he squeezes it goes straight to my—
Sasaki pressed harder.
"HhaaAHHnn—!"
The moan broke free like a bird from a cage — loud, desperate, warbling up through her fingers and her clenched teeth and every defense she'd built. Her hands fell from her mouth and fisted in the bedsheets on either side of her hips, knuckles white, tendons standing taut beneath the skin. Her back arched. Her eyes lost focus completely, the pupils blown so wide the dark irises had nearly vanished.
"Tell me." Sasaki shifted closer, brought his lips to the shell of her ear. His breath ghosted across the delicate skin, and he watched goosebumps erupt down the side of her neck in a visible wave. "Do you like it when I touch your legs?"
Ruri shuddered beneath him. Her hands twisted in the sheets, her hips rocking against the mattress in tiny, involuntary jerks. Her expression was gone — whatever mask of composure she'd been wearing had shattered into a thousand pieces, and what remained was raw, unfiltered need, the look of a girl drowning in a sensation she had no framework to process.
"I like it," she gasped. Her voice cracked on the second word, thin and high and barely hers. "I like it— I really like it— hahh— please—"
Did I just say please? Did I just— oh god— I can't stop— my body won't—
"Well." Sasaki sighed, the sound extravagant and false, a performer's sigh. "Since you're begging me..."
His right hand gentled on her thigh, shifting from the deep kneading to a slow, soothing caress — long strokes from knee to hip and back again, fingertips trailing fire along the sensitive inner curve. Ruri's breathing stuttered, then slowed, her body melting into the mattress like heated wax as the sharp spikes of pleasure softened into something warm and rolling and endless.
His left hand, meanwhile, found the Lust Marker in his pocket.
He uncapped it with his thumb. The faint chemical-sweet scent of its ink joined the ambient smell of tea and sweat and the flushed, slightly salty warmth rising from Ruri's skin. She didn't notice. Her eyes were half-shut, her head turned to the side, her chest still rising and falling in deep, shuddering breaths. A faint, continuous "mmhh... mmhh..." hummed in her throat, the sound of a girl suspended in a haze of pleasure too thick to see through.
His right hand drifted to her waistband.
The button of her jeans was small and copper-colored, snug in its hole. He worked it free with his thumb and forefinger — a tiny pop of metal through denim — and the waistband loosened, falling open to reveal a sliver of skin.
Her lower abdomen.
Pale. Almost luminous in the lamplight, the skin so fine he could see the faint blue trace of veins beneath the surface. A shallow valley ran from her navel downward, disappearing beneath the waistband of her underwear — plain white cotton, the elastic pressing a faint pink line into her skin. The lightest dusting of invisible peach fuzz caught the light. She smelled different here — warmer, closer to the core of her, a scent like clean linen and something beneath it that was purely biological, purely girl, a musk so faint it registered more as a feeling than a smell.
Sasaki pressed the Lust Marker's tip to the smooth expanse of skin just below her navel and two inches above the elastic of her underwear.
Ruri twitched at the cool, wet contact, but the pleasure still lapping through her from his right hand's steady ministrations kept her pinned in place, compliant, barely conscious of the new sensation. Her brow furrowed slightly. A questioning "nn...?" escaped her lips.
He wrote his name. Slow, precise strokes — each character flowing from the pen in that faintly iridescent ink that would be invisible to anyone who didn't know what to look for. The pen's tip dragged across her skin with a sound like a whisper, the ink sinking into her pores almost instantly, bonding with nerve endings it had no business knowing existed.
The second signature.
Sasaki capped the pen and slipped it back into his pocket, his right hand still stroking Ruri's thigh in those long, hypnotic passes that kept her floating somewhere between consciousness and collapse. He looked down at his work — the fresh characters gleaming faintly on the pale canvas of her lower belly, positioned precisely over the dense cluster of nerve endings that ran beneath the surface there, close enough to her most sensitive anatomy that the signature's radius of effect would bleed into territory she couldn't ignore.
He rested his palm flat over the new signature and pressed down, gentle and warm, cupping the soft curve of her lower abdomen.
Ruri's entire body locked rigid, her spine bowing off the mattress, her mouth falling open in a silent scream that took three full seconds to find its voice — and when it did, it came out as a sound she'd never made before, something between a sob and a moan that cracked in the middle and dissolved into breathless, shaking whimpers.