Chapter 1: Walls of Jealousy
The drywall groaned.
A low, percussive thudding vibrated through the headboard pressed against the shared wall, a steady beat beneath the symphony of stifled moans and ragged breaths. Ethan stared at the crack in his ceiling, the neon glow from the streetlight outside painting his sterile room in sickly green and orange. His own bed was cold, the sheets kicked to the floor hours ago. The air felt thick, humid with his own restless heat and the seeping evidence of Nate’s activities next door.
Another slap, crisp and unmistakable. A sharp gasp. Then Nate’s voice, low and commanding, bleeding through the plaster as if he were right there in the room. “You like that, you freak? Tell me you like it.”
A whimper. Mia’s voice, frayed at the edges. “I like it.”
“Louder.”
“I like it!” Her cry was pitched high, broken by another driving thrust that made the wall shiver. Dust sifted from the join where the ceiling met the wall, glittering in the half-light.
Ethan’s hand was already inside his sweats, fingers wrapped around his own hard length. He’d told himself he wouldn’t, but his body had called him a liar an hour ago. He pumped slowly, listening, his own breath coming in short, silent huffs. He imagined the scene, piecing it together from the sounds: Nate’s jacked frame, a silhouette of pure dominance, driving into Mia’s smaller, yielding form. He imagined the bruises forming on her hips, the grip in her hair, the degrading words hissed against her skin.
It should have repulsed him. It did, in a distant, theoretical way. But a hotter, more immediate feeling coiled in his gut—a jealous, hungry arousal. His own sex life had become a boring checklist. This was raw. Unfiltered. Real.
“Kiss my foot, you slut. Show me where you belong.”
A wet, sucking sound followed. Ethan’s jaw tightened, his own rhythm faltering. He pictured it, the obscene submission, and a jolt of electricity shot straight to his core. His grip tightened.
The headboard slammed into the wall with a force that rattled the framed photo on Ethan’s nightstand. Mia screamed—a real, unchecked sound of overwhelming sensation. Nate grunted, a brutal, animal noise of release.
Then, silence. A vacuum, filled only by the hum of the mini-fridge under his desk and the distant swish of a car on the wet street.
Ethan lay still, his heart hammering against his ribs. Shame, sticky and familiar, began to seep in. He let go of himself, wiping his hand on the sheet. He was hard, unsatisfied, achingly aware of the quiet murmurs now leaking through the wall.
Nate’s voice again, a lazy, post-coital rumble. “You’re a mess.”
A soft, feminine laugh. “Your mess.”
“Damn right.” Springs creaked.A pause. “You hear that?”
“Hear what?”
“Nothing. That’s the point. House is quiet.” Another pause, longer this time. Ethan froze, listening so hard his ears buzzed. Nate’s next words were clear, deliberate, carved from the darkness and aimed directly through the cheap drywall. “Maybe we should see if that new stepbrother of mine is still awake. See what he’s got behind that quiet-guy act.”
The blood drained from Ethan’s face, then flooded back, burning. His earlier arousal transformed into something else—a sharp, terrifying anticipation. He didn’t move. Didn’t breathe.
Mia’s voice was a whisper, but it carried. “He’s listening?”
“Bet he is.” Nate chuckled, the sound devoid of warmth. “Bet he’s been listening all night. Hard as a rock in that sterile little room of his.”
A shuffling sound. Feet hitting the floor. “You think he would…?”
“Only one way to find out.”
Ethan’s eyes darted to his locked door. The knob was a pale globe in the gloom. It didn’t turn. Not yet. But the footsteps he heard next weren’t retreating to Nate’s bed. They were moving, deliberate and heavy, toward Nate’s door. Into the hall.
A floorboard groaned in the corridor.
Then, a single, firm knock shook Ethan’s door.
The sound was like a gunshot in the quiet.
Ethan’s heart stuttered, then hammered against his sternum. He didn’t move. He barely breathed. The neon glow from the window painted the door in lurid streaks, making the plain wood look like a barrier to some other, more volatile dimension.
Another knock. Not louder, but more insistent. “Ethan.” Nate’s voice, stripped of its earlier performative growl, was just a flat, deep command. “Open up. We know you’re awake.”
The ‘we’ did it. The plural. It made it real. Mia was out there with him. Standing in the dark hallway, listening.
Ethan’s mind raced, a riot of panic and a dark, unwelcome thrill. He could pretend to be asleep. He could tell them to go away. But his body was already moving, pushing back the thin sheet, his feet finding the cool floorboards. He was still painfully hard, trapped in his sweats, and the walk to the door felt obscenely exposed. He flicked on his desk lamp, the sudden yellow light harsh and accusing, illuminating the discarded condom wrapper from a forgettable hookup weeks ago. He hadn’t even bothered to throw it away.
He unlocked the door, the click echoing. He pulled it open just a crack, the chain still engaged.
The hallway was darker than his room. Two shapes resolved from the gloom. Nate, shirtless, wearing only low-slung athletic shorts, his muscular frame a sculpture of shadows and sharp angles. Sweat still gleamed on his collarbone. And beside him, Mia, wrapped in one of Nate’s hoodies. It swallowed her frame, hanging to mid-thigh. Her hair was a wild, dark curtain around her face, her lips swollen, her eyes huge and glittering in the sliver of light from Ethan’s room.
“Chain’s cute,” Nate said, his mouth curling into a lazy smirk. “Think that’ll stop us?”
“What do you want, Nate?” Ethan’s voice came out rougher than he intended.
Nate leaned a forearm against the doorframe, crowding the space. He smelled of sex, sweat, and his cheap, sharp cologne. “We were just talking. Wondering what you were up to. Sounded pretty quiet in here.”
“I was trying to sleep.”
“Funny,” Nate said, his eyes dropping pointedly to the front of Ethan’s sweats. “Doesn’t look like you were sleeping.”
Heat flooded Ethan’s face. He had no cover, no way to hide the obvious, shameless bulge. Mia’s gaze followed Nate’s, and she didn’t look away. A faint, curious smile touched her bruised lips.
“So you banged on my door to comment on my dick?” Ethan snapped, a flare of defensive anger cutting through the haze. “Congrats. You’ve seen it. Now fuck off.”
He moved to shut the door, but Nate’s hand shot out, palm flat against the wood. The chain went taut. Nate didn’t shove; he just applied steady, immovable pressure. “Easy, stepbro. We’re just being friendly. New family, and all.” His tone was a mockery of warmth. “We’re having a little after-party. Thought you might be lonely in here. You sounded lonely.”
Ethan’s stomach tightened. You sounded lonely. He had listened. They knew. The shame burned hotter.
Mia finally spoke, her voice soft, a little hoarse. “It’s okay, Ethan. We’re not mad.” As if he had done something wrong. As if he were the one who needed forgiveness.
Nate’s eyes, dark and unreadable, locked on Ethan’s. “You gonna let us in, or are we gonna have this chat through the crack all night? Your call.”
The standoff lasted ten seconds. Twenty. The only sound was the hum of the fridge and Ethan’s own pulse roaring in his ears. He saw the challenge in Nate’s look, the invitation in Mia’s. A dangerous, dizzying curiosity unraveled the last of his resistance. What did he think was going to happen? What did he want to happen?
His fingers fumbled with the cold metal of the chain. It slid free with a rattle that sounded absurdly loud.
He opened the door.
Nate shouldered past him immediately, as if claiming territory. He surveyed Ethan’s room with a slow, dismissive sweep. “Sterile. Told you.” He picked up a textbook from the desk, flipped it closed without looking at the title, and dropped it with a thud.
Mia slipped in after him, more hesitant. She hovered near the door, pulling the hoodie sleeves over her hands. Her bare legs were slender, pale, marked with faint red lines—the imprint of fingers, or perhaps the edge of the bed.
Nate turned, his back to the desk lamp, casting his face in shadow. “So. You heard.”
It wasn’t a question. Ethan leaned against the closed door, the wood solid against his spine. A feeble last line of defense. “The wall’s paper thin. The whole block heard.”
A genuine laugh burst from Nate, sharp and surprising. “Fair.” He prowled a few steps closer, the dynamic in the room shifting, tightening. “What did you think?”
The question hung there, crude and impossible. Ethan just stared, his mouth dry.
“He thought it was hot,” Mia said quietly from the corner. She wasn’t looking at either of them; she was studying a poster on Ethan’s wall as if it were a masterpiece.
Nate’s smirk returned, wider. “Is that right, Ethan? You get off listening to me fuck my girl?”
“Fuck you, Nate.”
“Language,” Nate tsked, still advancing. He was now within arm’s reach. Ethan could see the faint stubble on his jaw, the pores of his skin, the predatory focus in his eyes. “See, I think Mia’s right. I think you were lying there, jacking your thick dick, imagining it was you. Imagining her screams were for you.”
Each word was a slap, a violation. And each one landed with a sickening, thrilling accuracy. Ethan said nothing. His silence was confession enough.
Nate nodded, as if confirming a theory. He glanced at Mia. “Bring him.”
Mia moved then. She crossed the room, the hoodie whispering around her thighs. She didn’t have Nate’s aggressive confidence, but there was a quiet purpose in her movements. She stopped in front of Ethan, so close he could smell her—soap, perfume, and under it, the unmistakable, musky scent of sex. Their sex.
She looked up at him. Her eyes were a complex mix of submission from what she’d just endured, and a new, rising curiosity. “He’s right, isn’t he?” she murmured, her voice for him alone.
Ethan’s breath hitched. He gave the faintest, almost imperceptible nod.
A slow blink. A decision made. Her small hand came up, not to his face, but to his chest. She laid her palm flat over his pounding heart, then slid it down, over the hard planes of his stomach, lower, until her fingertips brushed the straining fabric of his sweats.
Ethan jerked as if shocked.
“He’s huge, Nate,” she said, her eyes still locked on Ethan’s. Her fingers traced the outline, a clinical, awe-filled assessment. “Like you.”
Nate closed the final distance. He was beside Mia now, a wall of heat and intention. “Let’s see.”
It wasn’t a request. It was the next logical step in an experiment they were all conducting. Ethan’s hands clenched at his sides. Every instinct screamed to shove them both out, to reclaim his space, his dignity. But a more potent, darker instinct held him still. The one that had gotten hard listening to them. The one that was now throbbing under Mia’s tentative touch.
With a blunt motion, Nate hooked his fingers into the waistband of Ethan’s sweats and pushed them down, just enough.
The cool air of the room was a shock. Mia’s soft intake of breath was another. She stared, her lips parting. Nate let out a low, appreciative whistle. “Damn. Family trait, I guess.” He reached out, his touch shockingly casual, and wrapped his hand around Ethan’s length, giving him a single, firm stroke from root to tip. “Solid. You been edging all night listening to us, stepbro? Got yourself all worked up for nothing?”
Ethan gasped, his hips bucking involuntarily. The touch was starkly utilitarian, devoid of any real tenderness, and it shattered the last pretense. He was fully, utterly exposed to them.
“What do you want, Ethan?” Nate asked again, his hand still moving with a rough, practiced rhythm. “You wanna just go back to your cold bed and your boring hand? Or you wanna play with us?”
Mia leaned in, her breath warm against Ethan’s shoulder. “He wants to play,” she whispered, as if translating Ethan’s ragged breathing, his trembling muscles. “He’s just scared.”
“I’m not scared,” Ethan gritted out, the first words he’d managed since they entered.
“Prove it,” Nate challenged, releasing him. He stepped back, pulling Mia with him by the hoodie’s collar. He sank onto the edge of Ethan’s unmade bed, the springs groaning under his weight. He spread his legs and looked up at Ethan, a king on a borrowed throne. “You like what you heard? You want a taste of what she’s like?”
Mia stood between Nate’s knees, her back to him. Nate’s hands came up to her hips, possessive and guiding. He looked at Ethan, his expression unreadable. “Come here.”
The command pulled Ethan from the door. His steps were unsteady, his sweats pooled around his ankles. He stopped a foot away from them, the reality of the situation crashing over him in a dizzying wave. His stepbrother. His stepbrother’s girlfriend. In his room.
Nate’s hands slid up under the hoodie Mia wore. She wasn’t wearing anything underneath. He cupped her breasts, his thumbs brushing her nipples, and she arched back against him with a soft sigh. But her eyes were on Ethan.
“She’s a good girl,” Nate said, his mouth near Mia’s ear. “A filthy, desperate little slut, but she follows orders. You got any orders for her, Ethan?”
Ethan’s mind went blank. All the crude, dark fantasies that had flickered through his mind while listening at the wall evaporated, leaving only a yawning, nervous void.
“See? He’s shy,” Nate mocked. He pinched Mia’s nipple, not gently, and she yelped. “Give him a reason to talk, baby. Kiss him.”
Mia didn’t hesitate. She stepped forward, bridging the gap. Her hands came up to frame Ethan’s face, and she pulled him down, her mouth meeting his.
It was nothing like the chaste, drunken kisses he was used to. This was a direct transfer of the energy from the other side of the wall. Her lips were insistent, hungry. She tasted like mint and something darker, more metallic. Ethan stood frozen for a second before a dam broke inside him. His hands came up, tangling in her wild hair, and he kissed her back, deep and possessive, a mimicry of the dominance he’d heard exercised all night.
A low chuckle from the bed. “There he is.”
When Mia finally broke the kiss, she was breathless. “He’s not shy,” she reported, her voice dreamy.
“Good.” Nate’s eyes were like chips of flint. “On your knees, Mia.”
She understood instantly. She sank down, not on the floor, but between Nate’s spread legs, turning her head to look up at Ethan expectantly.
“Not for me,” Nate said, giving her hair a tug to redirect her. “For him. Show my stepbrother what that pretty mouth is for.”
The shift in focus was seismic. Mia pivoted on her knees, her back now to Nate, her face level with Ethan’s erection. She looked up at him, a question in her eyes. An offering.
Ethan looked at Nate over her head. This was the test. The line. Taking what was offered was one thing. Taking what was explicitly, commandingly given by Nate was something else entirely.
Nate held his gaze, a challenge and a permission slip all in one. He gave a single, slow nod.
Ethan’s hand moved to the back of Mia’s head, his fingers threading through her silken hair. He didn’t push. He guided. Her mouth opened, hot and wet, and she took him in, swallowing him down with an ease that spoke of practice and a willingness to please.
The sensation was blinding, short-circuiting every coherent thought. Her tongue worked him, her lips stretched tight. Behind her, Nate watched, his hands resting on her shoulders, his expression one of intense, proud ownership. He was letting Ethan use his property. The degradation wasn’t directed at Ethan—it was redirected through him, onto Mia.
“She’s a freak for it, right?” Nate said, his voice conversational, as if they were discussing the weather. “Look at her. Born to suck cock. Your cock, my cock, doesn’t matter. She just needs to be used.”
Ethan couldn’t speak. He could only watch, feeling the pull of her mouth, the vibration of Nate’s voice through her body. He was hurtling toward a precipice, the buildup of the entire night coalescing into this single, illicit point.
Nate saw it. “Don’t you dare come in her mouth,” he ordered, his voice dropping back into that firm command. “Not yet. That’s not where she earns it.”
Ethan gritted his teeth, his thighs trembling with the effort to hold back. He pulled Mia off him, a string of saliva breaking between her lips and his glistening tip. She looked dazed, beautifully wrecked.
“Stand up,” Nate said, slapping her ass lightly.
She rose, unsteady. Nate stood then, pushing the hoodie from her shoulders. It fell to the floor, pooling around her feet. She was naked now, fully revealed in the ugly yellow lamplight. The marks on her skin were a map of the last hour. Nate turned her roughly to face the bed, bending her over so her hands were flat on Ethan’s rumpled sheets.
“This is what you wanted to hear, right?” Nate said to Ethan. He positioned himself behind Mia, not entering her, just aligning his body with hers. “This is the view. This is the sound.” He looked at Ethan, a cruel, inviting glint in his eye. “You wanna hear it from the source?”
Ethan’s vision swam. He was on a raft in a storm, and Nate was the only landmark.
Nate reached out, grabbed Ethan’s wrist, and pulled him close, until Ethan was standing beside him, both of them looming over Mia’s arched back. “She can take it,” Nate murmured, his lips close to Ethan’s ear. “She wants it. From both of us. Don’t you, baby?”
“Yes,” Mia moaned into the sheets, her voice muffled but clear.
“See?” Nate’s hand slid down the sweat-slick valley of Mia’s spine. “No jealousy. Just… shared interest.” He looked at Ethan, and for the first time, the arrogant mask slipped, just a fraction. Underneath was something equally fierce: a raw, undisguised hunger for complicity. He didn’t just want to corrupt Mia; he wanted to corrupt Ethan, too. To bind them together in this.
He stepped back, ceding the space. The invitation was absolute.
Ethan’s hands found Mia’s hips. Her skin was fever-hot. He leaned over her, his chest to her back, his mouth by her ear. He could smell Nate on her. “You’re sure?” he growled, the words foreign in his mouth.
In answer, she pushed back against him, a wordless, desperate plea.
That was all it took. He drove into her in one hard, unbroken stroke.
The sound she made was different than the ones through the wall. Closer, wetter, ripped from a place deep in her gut. It was real. And it was for him.
The rhythm was clumsy at first, Ethan’s control frayed by months of fantasy and minutes of overwhelming reality. But he found it, a punishing, deep cadence that made the bedframe screech in protest against the wall—the same wall he’d listened against.
Nate didn’t watch from a distance. He moved in close again, a spectator turned participant. His hands were everywhere—guiding Ethan’s thrusts, gripping Mia’s hair, tracing the flexing muscles in Ethan’s back. His voice was a constant, degrading soundtrack in Ethan’s ear. “That’s it. Fuck her like you mean it. Like you wanted to all night. She’s not a person, she’s a hole. Our hole.”
The words should have repelled him. Instead, they fused with the pounding of his blood, the slick, tight heat surrounding him, the sight of Mia’s fingers clawing at his sheets. They became a part of the engine driving him forward, stripping away the last vestiges of his former boredom. This was not basic. This was elemental.
He felt a hand wrap around his throat from the side—not squeezing, just holding, a claim of pressure. Nate. Ethan choked, his rhythm stuttering.
“Look at her face,” Nate commanded, tightening his grip just enough to spark stars at the edges of Ethan’s vision.
Ethan forced his eyes open, looked down. Mia had turned her head to the side, her cheek pressed into the mattress. Her eyes were rolled back, tears or sweat marking trails through her makeup. She was utterly gone, lost in the sensation of being used by two men who mirrored each other in the dark.
“She’s gonna come,” Nate announced, as if reading her body like a gauge. “Make her come. Then you’re going to pull out, and you’re going to come all over her back. Mark her. Let her feel how much you needed this.”
The specificity of the command, the sheer filth of it, was the final trigger. Ethan’s control snapped. He pistoned into her, chasing his own end, obeying the order. Mia’s body clenched around him, a series of pulsing, violent spasms, and a broken, sobbing scream was torn from her throat. It was the sound from behind the wall, but it was his name, twisted and mangled, mixed with Nate’s.
He tore himself from her, stumbling back. Nate was there instantly, his hand on Ethan’s, guiding it, stroking him with a brutal efficiency until with a ragged shout, Ethan spent himself across Mia’s trembling back and shoulders, the stripes stark and white on her dusky skin.
Silence, save for three sets of lungs gasping for air.
Ethan staggered back, hitting the edge of his desk. The lamp wobbled, sending shadows reeling. He looked at the scene: Mia collapsed forward, spent and marked. Nate standing over her, a look of intense satisfaction on his face as he surveyed the mess they’d made of her. Of Ethan’s room. Of the quiet, sterile life Ethan had known.
Nate finally broke the silence. He bent, picked up his hoodie from the floor, and used a clean corner of it to gently wipe Mia’s face. The gesture was unexpectedly tender, a stark contrast to everything that had just happened. “Good girl,” he murmured. He then wiped a splash from her shoulder, his eyes lifting to meet Ethan’s.
The arrogance was back, but it was tempered by something new—a kinship, forged in sweat and degradation. “See?” he said, his voice hoarse. “Better than listening through a wall, right?”
Ethan couldn’t answer. He was hollowed out, filled with a strange, buzzing static. The neon from the street still bled through the curtain, painting them all in the same guilty light.
Mia pushed herself up on shaky arms. She looked at Ethan, her eyes clear and impossibly calm. She smiled, a small, secret thing.
Nate helped her into the hoodie, zipping it up slowly, covering the evidence. He slid an arm around her, supporting her weight. He looked at Ethan, not with challenge now, but with a kind of blunt acknowledgement. “Get some sleep, stepbrother,” he said. “We’ll be quiet.”
He led Mia to the door. She paused on the threshold, glancing back at Ethan one last time, her expression unreadable. Then they were gone, melting back into the dark hallway.
The door clicked shut.
Ethan stood alone in the wreckage of his room. The scent of sex was overwhelming, a permanent claim in the air. The condom wrapper under the desk lamp seemed to mock him from a simpler, distant past. The wall was silent. The only sound was the frantic, slowing beat of his own heart, and the dawning, terrifying realization that nothing would ever be sterile again.