Cover of The Ascension of Sean's Rearguard

The Ascension of Sean's Rearguard

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A story about a guy named Sean who is 5ft tall with a huge perfect bubble butt, and everybody can’t stop staring and admiring. He gets jack in a room and starts taking and boasting about how much he loves his massive ass and how obsessed he is . Jack is 6ft8 and is being dominated by Sean’s huge ass he can’t resist

Chapter 1: The Mirror and the Meltdown

The private gym hummed, a low electronic purr beneath the scent of sanitized sweat and rubber matting. Overhead lights flickered, casting the chrome equipment in stark relief, and in every mirror, Sean’s silhouette moved—a compact, deliberate force.

He was shirtless, skin sheened with a fine perspiration that caught the light along the ridges of his back. His shorts, grey and seemingly ordinary, were anything but. With every step toward the weight bench, the fabric strained across a topography that commanded the room. It was a pronounced, perfectly rounded curve that defied his otherwise lean frame, each cheek defined and bouncing with a hypnotic, separate rhythm.

Jack stood frozen by the cable machine, a forgotten handle dangling from his grip. At six-eight, he usually felt like he occupied too much space. Now, he felt like a satellite, pulled into an orbit he couldn’t break. His eyes tracked the movement, the way the muscles clenched and released with a life of their own. His breath felt thick in his throat.

Sean laid back on the bench, the cool vinyl a shock against his skin. He arched his back, settling into position, and the action lifted his glutes off the bench entirely, presenting them in taut, rounded relief against the flat surface. He reached for the barbell, his biceps coiling, but his focus was on the mirror beside him. On Jack’s reflection.

He saw the big man’s Adam’s apple bob. Saw the way his fingers were clenched white-knuckled around the cable handle.

A slow smirk spread across Sean’s face. He began his reps, the weights rising and falling with a smooth, controlled rhythm. Each press upward was accompanied by a subtle, rolling shift of his hips on the bench.

“You planning on using that thing, or is it just a prop?” Sean called out, his voice cutting easily through the gym’s hum. He didn’t look over, keeping his eyes on the ceiling, knowing the effect was in the periphery.

Jack jolted, the metal handle clattering against the stack. “Uh.Yeah. Sorry.” He sounded anything but sorry.He sounded haunted.

Sean finished his set and let the bar settle back with a solid clank. He sat up, staying on the bench, and finally turned his head. He met Jack’s gaze in the mirror, holding it. “You’ve been staring for ten minutes, big guy. It’s getting a little obvious.”

Jack’s face flooded with heat. He opened his mouth, but no sound came out. His usual imposing presence had evaporated, leaving a raw, hungry nervousness in its place.

“Cat got your tongue?” Sean stood up, stretching his arms overhead in a way that pulled his shorts even tighter. He took a few slow steps toward the water cooler, his gait an intentional, hip-swaying promenade. “Or is it something else?”

“I wasn’t…” Jack started, the lie dying. He swallowed again, his voice dropping to a reverent murmur. “It’s just… impressive.”

Sean stopped, turning fully to face him. He placed a hand on his own hip, thumb hooking into the waistband of his shorts. “This old thing?” He gave a little bounce, the curves jiggling magnificently. “Yeah, I know. Worked hard for it.”

“It shows.” The words tumbled out, too honest, too eager.

Sean laughed, a bright, easy sound. He walked closer, closing the distance until he was looking up, way up, into Jack’s face. The sheer height difference should have been intimidating. It wasn’t. Sean owned the space between them. “You like staring, huh? Bet you’d love to worship it.”

Jack flinched as if struck. A tremor ran through his huge frame. His eyes da

nd didn’t know where to land. They danced from Sean’s amused face, down the defined V of his torso, and back to the spectacular curve that had hijacked his higher brain functions. “I… I shouldn’t,” Jack managed, his voice a rough scrape.

“But you want to.” It wasn’t a question. Sean took the final step, eliminating the distance. He was so close Jack could feel the heat radiating from his skin, smell the sharp, clean salt of his sweat. Sean had to crane his neck to look up, but the power dynamic was utterly inverted. “It’s okay to want it. Everyone does.”

Sean’s hand, small and firm, came to rest on Jack’s stomach. The touch burned through the thin fabric of his shirt. Jack sucked in a sharp breath, his entire abdomen contracting.

“See?” Sean whispered, applying the slightest pressure, guiding Jack backward until his calves hit the leg press machine. “You’re not moving away.”

Jack couldn’t. His bones felt like liquid. The gym’s sterile silence was now a roaring in his ears, punctuated only by the ragged sound of his own breathing. He watched, mesmerized, as Sean turned around slowly, presenting the view that had unraveled him.

The grey shorts were right there. At eye level for Jack, even as he stood. The fabric was stretched so thin he could almost see the shadow of the muscle beneath. Sean placed his hands on his own hips, rolling his shoulders back.

“Go on,” Sean said, his voice a low challenge. “Touch it. You know you’ve been imagining it all night.”

Jack’s hands lifted, hovered in the air like they belonged to someone else. His fingertips trembled. This was madness. He was a giant, and this compact, devastating man had him on a string he didn’t even try to hide.

“I’m waiting,” Sean sang softly, giving a little shimmy that made Jack whimper.

The sound broke the last dam. Jack’s large, calloused palms came down, settling with shocking gentleness on the curves. The heat was immense. The firm, resilient softness beneath the fabric was a geometry his hands had been desperate to map. A choked groan escaped him, and he pressed in, his fingers sinking, learning the impossible perfection of the shape.

“Yeah,” Sean sighed, leaning back into the touch. “That’s it. Not so hard now, are you? Just a big puppy.”

The humiliation of the words should have stung. Instead, they coiled hot in Jack’s gut. He kneaded gently, his thumbs tracing the lower curve where it met Sean’s thigh. He was lost in the sensation, in the permission.

Sean peered over his shoulder, his expression one of wicked satisfaction. “You wanna get a better angle? Kneel.”

Jack didn’t hesitate. His knees hit the rubber matting with a soft thud. Now, he was face-to-face with it. The world narrowed to the swell of muscle in front of him, the faint seam of the shorts, the scent of Sean overpowering the gym’s antiseptic smell.

Sean looked down between his own arm and his side, meeting Jack’s wide, desperate eyes. “Good. Now tell it what you think.”

“It’s… the most beautiful thing I’ve ever seen,” Jack breathed, the confession torn from him. He nuzzled his face against the fabric, inhaling deeply. His arms wrapped around Sean’s thighs, holding on like a man in a storm.

Sean chuckled, running a hand through Jack’s hair, not tenderly, but possessively.“I know. And it’s all yours to look at right now.” He flexed, and Jack felt the muscle harden and shift under his cheek. A full-body shudder wracked the bigger man.

“But,” Sean said, his tone shifting, turning businesslike. “We can’t stay here all night. The cleaner comes at eleven.” He patted Jack’s head and extricated himself from the grip, stepping away smoothly.

The sudden loss of contact, of heat, was a physical agony. Jack knelt on the floor, feeling bereft and foolish, his arousal a painful tightness in his jeans.

Sean grabbed his towel from the bench and slung it around his neck. He didn’t look flustered or affected in the slightest. He looked like a man who’d just completed a satisfying set. He picked up his water bottle, took a long swig, and eyed Jack still on the floor.

“You drive here?” Sean asked.

Jack nodded, unable to form words.“Good. I’ll ride with you. My place is closer.” Sean tossed his gym bag over his shoulder and started walking toward the door, not looking back to see if Jack followed. The confidence was absolute. The assumption was a command.

Jack scrambled to his feet, his legs unsteady. He watched the mesmerizing sway of those shorts as Sean walked away, each step a promise and a punishment. He knew, with a terrifying clarity, that he would follow that walk anywhere. He fumbled for his keys, his heart pounding a frantic rhythm against his ribs, and hurried after the only thing that suddenly mattered.

The gym door sighed shut behind them, cutting off the hum of fluorescent lights and leaving them in the muffled, damp silence of the parking garage. Jack’s truck was a hulking shadow in the corner, oversized and practical. Sean didn’t wait for an invitation. He walked to the passenger side, the sway in his step unconsciously exaggerated on the rough concrete, and leaned against the door.

“Unlock it, big guy.”

Jack’s fingers, clumsy and thick, stabbed at the fob. The lights flashed with a chirp. Sean pulled the handle and slid onto the worn leather seat, filling the cab with the scent of sweat and ambition. Jack climbed into the driver’s seat, the entire vehicle listing slightly with his weight. The engine rumbled to life, a deep vibration that thrummed through the silence.

“My place is on Elm. The gray complex.” Sean stated it as a fact, not a request. He shifted, settling into the seat, and even in the dim light from the garage exit, Jack could see the way the gray fabric stretched. He put the truck in reverse, his eyes glued to the rearview camera, but his awareness was a narrow tunnel focused on the passenger seat.

The drive was short, tense with unsaid words. Sean didn’t speak, just looked out the window, one arm resting on the center console. His presence was a physical weight. Jack pulled into a visitor spot outside a neat, impersonal building.

“Here.” Sean was out of the truck before it was fully in park, not looking back.

Jack scrambled to follow, his long legs eating up the distance to catch up to Sean’s purposeful stride. They didn’t speak in the elevator. Sean pressed ‘3’, then stood with his back to the mirrored wall, watching Jack. The fluorescent elevator light was unforgiving, highlighting the sheen on Sean’s shoulders, the deliberate calm on his face. Jack stared at the numbers ascending, feeling gigantic and absurdly fragile.

The apartment door opened into a space that was all clean lines and minimalism. A single framed poster, a serious-looking weightlifter in mid-clean, hung on the wall. It smelled like citrus cleaner and protein powder.

“Shoes off,” Sean said, kicking his own cross-trainers into a corner by the door.

Jack bent, fumbling with his laces, his fingers all thumbs. When he straightened, Sean was already in the middle of the living room, standing on a large, neatly Vacuumed area rug. He turned slowly to face Jack.

The streetlight from the window cut across him, haloing his form. He hooked his thumbs into the waistband of his shorts.

“SEAN COMMANDS.”

The words weren’t loud, but they cracked through the room like a whip. They weren’t a request, or a suggestion. They were a law of physics.

“Come here.”

Jack crossed the room in three strides. He stopped a foot away, looking down, his breath already coming in short, sharp pulls.

“Closer.”

Jack took a half-step. The air between them crackled.

“All that staring in the gym,” Sean murmured, his eyes dark and unreadable. “All that… reverence. You think this is something you get to just have? Because you want it?”

Sean’s hands went to the tie of his shorts. A single, slow pull. The knot came loose. He didn’t push them down.Not yet.

“You think you deserve it?”

Jack shook his head, a quick, desperate motion. “No.”

“No,” Sean agreed, his voice a soft, dangerous thing. “You don’t. But I’m feeling generous.”

With a shift of his hips, the gray shorts slid down his legs. He stepped out of them, leaving them pooled on the rug. He was bare, completely confident, utterly exposed. The streetlight glossed the powerful curves, casting deep shadows.

“Kneel.”

It was the same command from the gym, but here, in the private silence of his apartment, it was irrevocable. Jack sank to his knees, the rough weave of the rug biting into his skin. The world reduced to this: the vista before him, the faint, musky scent, the absolute authority in Sean’s posture.

Sean looked down, his expression one of cool assessment. “You can look. You can even,” he said, pausing, letting the anticipation coil tight in the air, “touch. But only where I say. Only how I say.”

He reached back, not breaking eye contact, and laid a hand on the magnificent swell of his own cheek, fingertips pressing just enough to dimple the skin. “Here.”

A shudder of pure need racked Jack’s frame. His hands, which had been clenched at his sides, lifted. They hovered, trembling, inches from their goal.

“Now.”

Jack’s hands made contact. The heat was sublime, the skin shockingly smooth over the unyielding muscle beneath. A broken sound escaped him. He leaned forward, his forehead coming to rest against the small of Sean’s back, his hands curving, learning the perfect, impossible shape.

Sean allowed it for a moment, a full minute where the only sound was Jack’s ragged breathing. Then he shifted, a subtle roll that was both dismissal and a fresh presentation.

“Enough.”

Jack froze, his hands stilling.

“Stand up.”

It took a monumental effort of will for Jack to obey. His legs felt boneless. He rose, looming over Sean, yet feeling smaller than he ever had in his life.

Sean turned to face him. There was no coyness now, no playful smirk. His face was a serene mask of control. “This is mine,” he said, his voice low and even. “You get access on my terms.When I allow it. You breathe when I allow it. Understood?”

Jack could only nod, a rush of submissive relief washing through him so violently it made his eyes sting.

“Good.” Sean took a single step forward, closing the remaining distance. He had to crane his neck to look up into Jack’s face. “The gym tomorrow.Five PM. You’ll spot me.”

It wasn’t a question. It was the next commandment.

“Yes,” Jack breathed, the word a vow.

Sean’s lips curled, not into a smile, but into an expression of pure, satisfied possession. He placed his palm flat on Jack’s chest, right over the frantic hammering of his heart, and pushed, gently but firmly.

“Leave. The door will lock behind you.”

For a second, Jack didn’t move, suspended in the electric field of Sean’s will. Then, wordlessly, he turned. He collected his shoes, stepping out into the sterile hallway barefoot. He heard the soft, definitive click of the lock behind him.

He stood there for a long time, the ghost of that heat still burning on his hands, the command echoing in his bones.Five PM. It was a lifeline and a sentence. He finally pulled on his shoes, his movements slow and deliberate. As he walked back to his truck, the night air felt different. The world had shifted on its axis, and he now orbited a new, devastating center of gravity.

The world had shifted on its axis, and he now orbited a new, devastating center of gravity. Jack’s hand was on the cool metal of the stairwell door when he heard it.

“Hey.”

The voice, sharp and clear, stopped him dead. He turned.

Sean stood in the doorway of his apartment, backlit by the interior light. He’d pulled on a pair of loose, dark sweatpants but nothing else. His feet were bare on the cheap hallway carpet. He didn’t smile.

“Not that way.” Sean jerked his thumb over his shoulder. “Fire escape. This end of the hall.”

Jack blinked, confused. “The fire escape?”

“Yeah. Come on.”

There was no room for question. Sean turned and walked back into his apartment, leaving the door open. After a heartbeat of pure disorientation, Jack followed, shutting the door softly behind him. Sean was already crossing the living room, moving toward a sliding glass door Jack hadn’t noticed.

Sean unlocked it and slid it open. A rush of cool night air filtered in, carrying the distant sound of traffic and the smell of wet concrete from a recent rain. He stepped out onto a small, iron-grated landing. A set of steep stairs led down into the dark, cramped alley between buildings.

“Sit,” Sean said, pointing to the top step just outside the door.

Jack obeyed, lowering himself onto the cold, hard iron. The step was narrow. Sean stood in front of him for a moment, looking down, his face in shadow. Then, with a fluid, deliberate motion, he turned his back to Jack.

He didn’t kneel. He simply lowered himself, letting gravity do the work. He sat directly in Jack’s lap, but higher, aiming with an unerring accuracy. The full, staggering weight of him settled not on Jack’s thighs, but against his chest, his chin, and finally, his face.

The world became darkness, heat, and an impossible, suffocating softness. The loose sweatpants did nothing to hide the reality beneath them. Jack’s nose was buried, his mouth covered, his entire field of vision consumed by the vast, perfect curve of Sean’s backside. It was like being smothered by a warm, living cloud. He made a muffled, choking sound, his hands flying up to grip Sean’s narrow hips for balance.

“Shhh.” Sean’s voice was calm, conversational, as if they were discussing the weather. He adjusted his position slightly, grinding the magnificent flesh against Jack’s face with a casual cruelty. “Just breathe through your nose, big guy. You’re fine.”

Jack inhaled sharply. The scent was overwhelming—musky, salty, uniquely Sean. His head swam.

“You feel that?” Sean asked, giving another slow, deliberate wiggle. The jiggle was profound, a seismic wave of soft firmness that reverberated through Jack’s entire skull. “That’s what you’ve been staring at all night. That’s what’s got you following me around like a lost dog.”

He sighed, a contented sound. “God, it’s so big. I mean, look at this thing.” He reached back with both hands, grabbing handfuls of his own flesh through the sweatpants and shaking it. The movement engulfed Jack entirely, a soft, rippling tsunami. “It’s a whole event. Getting jeans to fit over this is a structural engineering challenge. I have to special order my gym shorts a size up just for the ass. You think that’s normal?”

Jack could only groan, a deep, desperate sound that was swallowed by the flesh pressed against his lips.

“And it’s not just big,” Sean continued, his tone didactic, almost boastful. “It’s perfect.Round.High. Jiggly when it needs to be, rock hard when I flex. A masterpiece, really. And it’s all Filipino, baby. Generations of good genetics right here in your face. You won’t find an ass like this anywhere else.”

He leaned back, increasing the pressure. Jack’s grip on his hips tightened, knuckles white.

“Everybody wants it,” Sean whispered, and now his voice dropped, intimate and taunting. “Guys, girls, they don’t care. They stare. They make excuses to touch it in crowded rooms. They offer to buy me drinks, to help me ‘work on my form’. They see this and their brains just… short-circuit. It’s a public service and a public hazard.”

He paused, letting the words hang in the cool air. A siren warbled in the distance.

“But you,” Sean said, and now his voice held a note of cold, amused finality. “You’re not like everybody else, are you, Jack? You’re worse. You’re obsessed. I saw it the second you walked in. Your eyes just… glued to me. You weren’t looking at a person. You were looking at this.”

He emphasized the point with another slow, circular grind.

“You’re already addicted. You’re sitting on a dirty fire escape in the dark with my fat ass smothering you, and you’re in heaven. You’re trembling. Look at you.” Sean chuckled, a low, warm sound that Jack felt through his own body. “You’re a giant. And you’re absolutely helpless. You think you could walk away from this now? You think you could just go back to your normal life, after knowing what this feels like? After knowing it exists?”

Sean shifted, lifting just enough so Jack could gasp a lungful of cold air. In that momentary clarity, Jack saw the alley below, the slick pavement, the dumpsters. It was a slice of the real world, bleak and ordinary. Then Sean settled back, blotting it all out again, returning him to the only reality that mattered.

“No,” Sean answered for him, his voice sure and quiet. “You couldn’t. You’re mine now. You need this. You’ll think about it at work. You’ll dream about it. That big, dumb brain of yours is just going to be full of this perfect Filipino ass from now on. You’ll come to the gym tomorrow because I told you to, and you’ll stare, and you’ll want, and you’ll thank me for letting you look.”

He finally pushed himself up, standing in one fluid motion. The cold night air rushed back against Jack’s wet, heated face. He sat there, dazed, breathing raggedly, his entire body thrumming.

Sean stood over him, looking down. He smirked, then turned and walked back inside without a second glance.

“Five PM,” he called over his shoulder, just before the sliding door clicked shut. “Don’t be late.”

The lock engaged with a soft, definitive thunk.

Jack was left alone on the fire escape, the imprint of paradise still warm on his skin, the smell of it lodged deep in his lungs. He stared at the locked glass door, at the dim, empty living room beyond. He knew, with a certainty that felt like both a sentence and a salvation, that every word Sean had said was true.

He would never be able to live without it.

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