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Luigi sneaks into Bowser's bedroom wearing only a pair of thin cotton boxers. Everyone was staying in the Koopa Kingdom's castle for their grand prix carting race and Luigi was thrilled at the chance to see Bowser again. It had been two weeks since their last clandestine meeting. As soon as he opens the door, he sees Bowser, naked, in bed already but awake. "Bowser," he says softly.
Bowser's eyes light up with excitement, his massive frame shifting as he sits up in bed. The sheets pool around his waist, revealing the powerful muscles of his chest and arms. "Took ya long enough," he growls, voice low and rough with affection, reaching out one clawed hand to beckon Luigi closer. The larger man has to resist the urge to pounce immediately—Luigi liked it slow at first.
Luigi walks up to the bed after shutting the door. He climbs onto it, crawling into the space between Bowsers legs. "I missed you," the smaller man murmurs softly.
Bowser lets out a pleased rumble, claws gently tracing circles along Luigi's spine as the smaller man settles against him. "Yeah? How much?" he teases, breath warm against Luigi's ear, secretly thrilled by how the plumber shivers at his touch.
Luigi practically purrs, rubbing against Bowsers cheeks as the larger man nuzzles him. "More than anything."
Bowser growls possessively, wrapping his massive arms around Luigi's slender frame. "That's what I like to hear," he rumbles, his claws trailing down Luigi's side with deliberate slowness—just enough pressure to make Luigi gasp.
Luigi whimpers and moves closer, kneeling between the Koopa's legs, grabbing his shoulders. "I want you."
Bowser lets out a low, satisfied growl, claws flexing against Luigi's hips as he pulls him flush against his scaled chest. "Say that again," he demands, voice rough with desire, nostrils flaring at the scent of the plumber's nervous sweat mixing with his own musky arousal. *Gods, the way he trembles when he's like this—like a leaf in a storm, but still begging for more.* His tail thumps against the mattress impatiently.
Luigi smiles, soft and fond, mvoing even closer, straddling Bowser's lap properly now. "Please," he murmurs softly.
Bowser exhales sharply through his nose at the sensation of Luigi settling over him, claws tightening just enough to leave faint marks on those slender hips. "That's my good boy," he rumbles, leaning down to nip at Luigi's collarbone—gentler than he would with anyone else, but still enough to draw a startled gasp.
Luigi gently rocks against Bowser's growing member. So big he knows it'll hurt going in but loves anyway. "Ah praise me more,” he whines softly.
Bowser grips Luigi's thighs, claws pressing just shy of breaking skin. "Fuck, look at you," he growls, nostrils flaring at the way Luigi's body arches for him. "My perfect boy, begging for it. You take me so good, don't you?" His tail slams against the mattress as he grinds up, relishing Luigi's choked moan.
"My boxers... Take them off," Luigi pleads.
Bowser's claws hook into the waistband of Luigi's boxers with practiced precision, tearing them away in one swift motion. The fabric shreds like tissue paper against his talons, revealing Luigi's flushed skin beneath. "Better?" he purrs, dragging a single claw up the inside of Luigi's thigh just to watch him squirm, his own arousal pressing insistently against Luigi's bare ass.
Luigi whimpers again. "I've prepped myself already. Fuck me please," he whines, rubbing his ass against Bowser's cock.
Bowser's pupils dilate at the words, a feral grin splitting his snout as he grips Luigi's hips hard enough to bruise. "Fuckin' hell, you planned this," he growls, lifting the plumber effortlessly before slamming him down onto his throbbing length in one brutal motion, relishing Luigi's choked scream.
Luigi adjusts to the throbbing member inside him. It's huge, like always and as he feels pain move to pleasure, he moans.
Bowser growls deeply as he feels Luigi adjust around him, his claws digging into the plumber's hips as he starts a slow, deliberate rhythm. "That's it, take it," he rumbles, watching Luigi's face contort in pleasure.
Bowser’s movements were relentless, each thrust driving Luigi deeper into the mattress, the bedframe creaking under their combined weight. Luigi’s nails scraped against Bowser’s scaled shoulders, leaving faint red trails in their wake. “Fuck! You feel so good,” Luigi gasped, his voice cracking as Bowser angled his hips just right, hitting that spot inside him that made his vision blur.
Bowser’s breath came in ragged bursts, his massive chest heaving as he watched Luigi unravel beneath him. The smaller man’s legs trembled, his toes curling against the sheets, and Bowser couldn’t resist the possessive urge to lean down and sink his teeth into the curve of Luigi’s shoulder. Luigi cried out, his back arching, and Bowser revelled in the way his body clenched around him in response. “Mine,” he snarled, the word more growl than speech, his claws tightening around Luigi’s hips as he fucked into him with brutal precision.
Luigi’s fingers tangled in the sheets, his knuckles whitening as Bowser’s rhythm became erratic, the Koopa’s control fraying at the edges. The air between them was thick with heat, the scent of sweat and musk mingling as Luigi’s breath hitched with every snap of Bowser’s hips. "B-Bowser..." he managed, voice trembling, but the rest of his plea was lost in a choked moan as Bowser’s tail coiled around his thigh, pulling him impossibly closer.
He could feel the coiled tension in Bowser’s muscles, the way his claws dug possessively into his hips, leaving crescent-shaped indents in their wake. “Close,” Bowser growled, the word rough and guttural, his nostrils flaring as he drank in the sight of Luigi writhing beneath him, flushed. Trembling. His.
The pressure inside Luigi built like a storm, every snap of Bowser’s hips sending electric sparks up his spine. His own cock ached, trapped between their sweat-slicked bodies, and when Bowser’s tail tightened around his thigh, pulling him into a deeper angle, Luigi saw stars. “I… I can’t...” he gasped, but Bowser silenced him with a searing kiss, teeth scraping against his lips as he swallowed Luigi’s moans.
Bowser’s rhythm stuttered, his hips stalling for a heartbeat before he buried himself to the hilt with a snarl. Luigi cried out as Bowser’s cock pulsed inside him, hot and thick, filling him in ways that made his toes curl. The sensation was overwhelming and it tipped Luigi over the edge. His back arched off the mattress as he came untouched, streaks of white painting his stomach, his body clamping down around Bowser in erratic pulses.
Bowser’s breath came in ragged, shuddering bursts as he rode out his climax, his claws gripping Luigi’s hips like a vice. He could feel the smaller man’s body trembling beneath him, still twitching with aftershocks, and the sight of Luigi, his Luigi, spent and marked and utterly ruined for anyone else sent a fresh surge of possessiveness through him. With a low, satisfied growl, Bowser leaned down, pressing his forehead against Luigi’s, their panting breaths mingling. “Fuck,” he muttered, voice rough, “you’re perfect.”
Luigi’s fingers trailed weakly up Bowser’s scaled chest, his touch feather-light. “Y-you’re heavy,” he managed, though there was no real complaint in his voice, just exhaustion, and affection for the much larger man. Bowser scoffed but shifted his weight slightly, rolling them onto their sides without pulling out, one arm still wrapped possessively around Luigi’s waist. The plumber let out a soft, contented sigh, nuzzling into the crook of Bowser’s neck, his breath warm against the Koopa’s scales.
For a long moment, they lay there in silence, the only sounds the creak of the bed frame settling and their slowing heartbeats. Then, Bowser’s tail flicked lazily, curling around Luigi’s calf. “You really prepped yourself, huh?” he rumbled, the question half-teasing, half-genuine curiosity. “How long were you planning this?”
Luigi’s cheeks flushed darker, but he didn’t shy away. “Since the race started,” he admitted, voice muffled against Bowser’s skin. He shifted slightly, wincing at the stretch but smiling when Bowser’s arm tightened around him.
Bowser’s chest vibrated with a pleased rumble. “Pathetic,” he muttered, but the word lacked its usual bite. Instead, he pressed a surprisingly gentle kiss to the top of Luigi’s head, lingering just a second too long to play it off as casual. “You’re lucky I like you like this.”
Luigi exhaled a shaky laugh, his fingers tracing idle patterns across Bowser’s chest. “Desperate,” he repeated, voice still wrecked, but there was a smile in it. “Says the man who will inevitably be asking for round two in a couple of minutes.”
Bowser’s laugh was a deep, rolling thunder that vibrated through Luigi’s entire body. “Round two?” he echoed, claws flexing against Luigi’s hipbone. “Who says I’m waiting a couple minutes?”