Chapter 8: Taboo Desires
The pale, bruised light from the streetlamp outside Nico’s window cut across Lisa’s back as she moved. It painted her spine in silver, each vertebra a faint shadow beneath her skin. The room was quiet except for the rustle of denim and cotton, the sound of his clothes being peeled away feeling louder than any argument they’d ever had.
He didn’t help. Couldn’t, by her rules. He just lay there, the worn flannel of his sheets familiar under his palms, the posters of bands he hadn’t listened to in years staring down from the walls like silent judges. His t-shirt went first, then his jeans, tugged down over his hips with a clinical efficiency that made his breath catch. The cool air of the room hit his bare skin, raising goosebumps.
Then she stood beside the bed, and her own clothes followed. There was no performance to it, no seductive tease. It was just disassembly. The click of her jeans button, the whisper of zipper, the soft sigh of fabric falling to the floor. She stepped out of the pile, naked in the half-light, and for a second she wasn’t the driven, infuriating stepsister he loved to needle. She was just a shape, real and terrifyingly present.
She crawled onto the mattress, the springs groaning a familiar, childhood complaint. Her knees pressed into the bedding on either side of his hips, and she began to move upward. The heat of her body radiated against his shins, his thighs, his stomach. He could smell her—the clean scent of her soap from this morning, undercut by something sharper, more visceral, from their walk through the rain and the tense, silent car ride home.
She didn’t stop until she was kneeling over his face. Her thighs framed his vision, the dark triangle of her pubic hair just inches from his mouth. The intimacy of it was absolute, a closing of circuit more profound than any kiss.
“Go ahead.”
Her voice was low, a note of challenge still there, but underneath it ran a current of something else. A vulnerability so raw it sounded like static.
He hesitated. His mind was a riot of contradictions—the old resentment, the new, frightening pull, the absurdity of their parents asleep down the hall. But her command, and the slight tremble he sensed in the muscles of her thighs, broke something open in him.
He lifted his head from the pillow, closing the final inch.
The first contact was a shock, soft and salt-bitter. He flinched, instinctively, then forced himself to still. To listen. Her breath hitched above him, a sharp intake. He tried to remember the theory, the mechanics, but all that faded into pure sensation. The taste of her, the overwhelming nearness. He found a rhythm, clumsy at first, then guided by the tiny, involuntary shifts of her hips, the press of her hands against the headboard for leverage.
A low sound escaped her, swallowed by the quiet room. It wasn’t a moan of pleasure, not yet. It was something looser, a release of breath she’d been holding for weeks. Months, maybe.
“You’re thinking too much,” she whispered, the words strained. “Stop… stop performing.”
He froze, insult flaring. But she was right. He was in his head, trying to get it right, to win some unspoken point. He let his jaw go slack, let himself just be there, a instrument for her use. The change was immediate. Her hips rolled forward, taking what she needed, the earlier tension melting into a heavier, urgent weight.
Her fingers tangled in his dark hair, not pulling, just holding on. The control was still hers, utterly, but it felt different now. Not a power play, but a collaboration in the dark.
When her climax came, it was quiet, a series of deep, shuddering tremors that passed through her into him. She muffled a cry against her own arm. For a long moment afterward, she didn’t move, her weight resting on him, her breathing ragged against the headboard.
Slowly, she slid down the length of his body, her skin slick with sweat. She collapsed beside him on the narrow bed, facing him. In the gloom, her blue eyes were wide, searching his. The defiant grin was gone. She looked stripped bare, younger.
“Okay,” she breathed, the word barely audible.
“Okay what?” His voice was rough, unfamiliar.
“Just… okay.” She reached out, her fingers tracing the line of his jaw, wet from her. The gesture was so unexpectedly tender it made his chest ache. “Your turn.”
She shifted, moving down the bed, her intention clear.
She shifted, moving down the bed, her intention clear.
Her hair trailed over his stomach, a whisper of sensation that made his muscles contract. She took him into her mouth without ceremony, her technique straightforward and devastatingly effective. The heat was an immediate, shocking contrast to the cool air of the room.
Nico’s head fell back, a choked gasp escaping him. His fingers twisted in the flannel sheets, the familiar fabric grounding him as she worked. He watched the shadows on his ceiling, the once-comforting shapes of his old band posters now just blurred smudges in the dark. Every thought dissolved into the rhythm she set, a building pressure that coiled low in his gut.
He was adrift in it, the tension from their walk in the rain, the silent car ride, the weeks of barbed comments all channeling into this single point of contact. His breaths came short and sharp.
“Lisa, I’m—” The warning was ragged, torn from him.
She pulled away instantly, her mouth leaving him with a soft, wet sound. She moved before he could protest, swinging a leg over his hips. Her eyes locked on his, blue and fierce in the dim light, as she positioned herself and sank down onto him in one smooth, deliberate motion.
The feeling was overwhelming, a deep, consuming fullness. She braced her hands on his chest, her fingers digging in slightly, and began to move. This was different from her control upstairs; it was demanding, a claiming. Each rise and fall was measured, calculated to drive him to the very edge he’d just been pulled back from.
He could only watch her, the elegant line of her throat as she threw her head back, the sheen of sweat on her collarbone. The familiar restraints of his old life, the fictional ones they’d imagined, felt utterly real now—he was pinned, not by rope, but by the weight of her and this terrifying intimacy.
“Look at me,” she demanded, her voice thick.
He did. Her expression was open, unguarded, a mix of triumph and something painfully raw. The sight of it, the feel of her tightening around him, shattered his last semblance of control. A broken sound ripped from his throat as the climax took him, wave after wave, leaving him trembling and spent beneath her.
For a long moment, she remained there, feeling the last pulses subside, her own breathing gradually slowing. Then, with a fluid grace that left him dizzy, she shifted again.
She moved back up his body, the damp heat of her skin sliding against his. Once more, she positioned her pussy above his mouth, lowering herself until she was a breath away. The scent of them, mixed and potent, filled his senses.
“Clean it up,” she whispered, the command softer now, almost a question. Her body hovered, waiting, a final, vulnerable offering in the dark.
Her body hovered, waiting.
He realized he had no choice. It wasn't about the command anymore, or the weird power game they’d been playing since their parents forced them into the same house. It was the raw fact of her, here in his childhood bed, offering him this. He closed the final distance.
The taste was complex, metallic and musky, the sharpness of his own release mixing with her essential salt. He worked slowly, methodically, his eyes closed. The trophies on his shelf were blind witnesses.
"Don't swallow."
Her voice was a husk of sound above him. The order landed not as domination, but as a frantic correction, a preservation of something. He froze, the bitter warmth pooling on his tongue.
"Keep it there."
She moved then, sliding down his body with a fluid urgency that left him disoriented. Before he could process the command, her face was above his, her blonde hair a curtain blocking out the dim light from the window. Her eyes were wide, almost scared.
She kissed him.
It was a deep, searching invasion, her tongue pushing into his mouth to meet the taste she’d forbidden him to lose. She drank it from him, a low, shuddering groan vibrating through her chest and into his. The kiss was messy, desperate, a shared corruption that dissolved the last remaining wall between them.
When she finally broke away, breathing hard, a silvery strand still connecting their lips, she looked utterly ruined. The ambitious, assertive Lisa was gone. In her place was someone just as lost as he was.
In her place was someone just as lost as he was. They lay like that for a long time, breaths syncing in the dark, the only sound the occasional creak of the house settling around them. The world outside his window remained a indifferent, bruised purple.
Eventually, she rolled off him, the cool air rushing to fill the space where her heat had been. The flannel sheet was damp and tangled beneath them. Nico stared at the water stain on his ceiling, its shape familiar as a continent.
“So,” Lisa said finally, her voice raspy. She cleared her throat. “Performance review.”
Nico let out a short, startled breath that wasn’t quite a laugh. “Is that what this was?”
“Everything’s an evaluation.” She turned her head on the pillow to look at him. The morning’s first grey light was beginning to define the sharp line of her nose, the curve of her lip. “So? Did you like it?”
He stayed quiet, listening to a distant car pass on the wet street. The taste of her, of them, was still a faint, complex memory on his tongue.
“Even a little?” she pressed, and the vulnerability in it was almost worse than the command.
He laughed then, a dry, quiet sound in the dim room. He looked at the trophies on his shelf, the dumb gleam of plastic gold. “The taste is starting to grow on me,” he said, the admission feeling dangerous and true.
Lisa didn’t smile. She just watched him, her blue eyes serious. “Yeah,” she said softly, to herself more than to him. “Me too.”
A floorboard groaned in the hall. They both froze, a sudden, ridiculous tension locking their limbs. The shuffle of slippers passed Nico’s door, heading toward the bathroom. The mundane sound was a bucket of cold water.
“Shit,” Nico whispered.
“Yeah.” Lisa sat up, the sheet pooling at her waist. Her back was to him, a pale landscape in the gloom. She found her clothes in a heap on the floor and began dressing with a swift, practical efficiency that felt like a retreat.
He watched her, the earlier intimacy receding like a tide, leaving awkward debris behind. “This is so fucking weird,” he said, not meaning to say it aloud.
Lisa pulled her sweater over her head, her voice muffled by the fabric. “You’re just now realizing that?” She emerged, her hair a wild blonde halo. “We did it in your childhood bed, Nico. Under your soccer trophies. It doesn’t get weirder.”
A genuine laugh burst out of him, tight and surprised. She glanced at him, and the corner of her mouth twitched. It was a crack in the ice.
She stood, fully dressed now, and looked down at him. He felt exposed, still naked under the rumpled sheet. “Don’t overthink it,” she said, but it lacked her earlier conviction. It sounded like a hope.
“I only have one mode, Lisa. It’s overthink.”
“I know.” She walked to the door, her hand pausing on the knob. She didn’t look back. “The rain stopped. I have that internship call at nine.”
He just nodded, though she couldn’t see it. The door opened with a soft click, then closed behind her, leaving him alone with the scent of her sweat and his own confusion. The room felt both larger and smaller than it had before.
Down the hall, the shower started to run.