Archive of Our Own

Of course Luigi knew what time of day it was right now, puttering through the dark sky in the Clown Car. He'd mostly gotten over his motion sickness but still always asked Bowser to take dips in elevation nice and easy. Their descent was gradual and the Clown Car was lovingly parked at the castle gates.

"Hopefully, Junior is fast asleep by now," Bowser wasn't sure why he was being quiet, especially since they were still outside. "Did you... Want anything else? Coffee? I think there's cake somewhere."

"I'm fine, thank you--"

Luigi squealed as he was hefted onto Bowser's shoulder, a heavy paw settling on his hip to keep him upright. The Koopa King's gait was a little tilted and each step felt distinctly thought-out. 

"Man, you weigh nothing," Bowser barked a laugh. "Green bean is definitely a good nickname for you."

Luigi let out a flustered chuckle, unsure of how to even respond.

When the pair entered the castle proper, there was no fanfare. Even with his now consistent visits to the estate, Luigi's arrival was always welcomed with a great chorus of horns and a few hundred-man salute. He'd mentioned that the gesture was unnecessary before. Perhaps the request had finally sunk in. 

"Here, I'll take you to my room," Bowser thumped down hallway after hallway. It was incredible he never got lost. "I gotta just get a little status report and then it's you and me, baby. You sure you don't want anything? Wine, water, glass of milk?"

"I promise I'm fine." Luigi still teetered on the Koopa's shoulder, clinging to his horns as they wobbled through the castle. 

It was easy to know when they'd reached Bowser's private quarters. No other door on the entire property was as tall as the ceiling and covered in blood red paint with hundreds of spikes and a massive decal of his own face. Bowser lifted Luigi off of his shoulder though his touch lingered, claws just catching on the denim texture of Luigi's overalls.

"I won't be too long," Bowser winked and grinned. "Have a look around. I think it's the last room you haven't seen."

Luigi opened his mouth, to really say nothing in particular, but watched as Bowser turned heel to barge back down the hallway. That was fine. The bedroom door was unlocked but took a little effort to ease open.

Bowser's bedroom was entirely what Luigi expected. There was a huge stone fireplace on one wall beside a single tall bookcase and a rather elegant looking writing desk. The bed was massive with a dramatic canopy. There was both a large walk-in closet and a wardrobe. The bed was flanked by two balconies, both with heavy curtains serving as doors. Every surface was green and red and black and silver and nearly every piece of furniture was studded with spikes.

Incredible.

Luigi let his hand drag over the plush rolling chair set at the desk. The material was sturdy beneath his fingers. They probably had to source some real tough leather to withstand the spikes on Bowser's shell. Hell, all the fabric and upholstery in the whole castle had to be tough. Any snare or snag would no doubt draw the Koopa King's mighty ire of which no man or Goomba ever dreamed of facing.

There was a journal on the desk, closed with a fountain pen lain on top. Having known what it felt like to have someone read his own diary, Luigi opted not to intrude on Bowser's privacy like that. Instead, he was happy to root around in his closet. Many outfits were strewn up on hangers. There was a wedding suit and hat, slacks with a button-up and a bowtie, a Hawaiian flower print shirt, amongst some other accessories. Luigi found himself fascinated by the white velvet hat seemingly paired with the wedding garb. It was a little too high for him to reach without jumping so he opted to leave that for another day.

Luigi was just about to try on what looked like thick rimmed glasses with the lenses punched out when the bedroom door squeaked open. Bowser found him immediately and poked his head into the closet with a big grin.

"Everything okay?" Luigi asked, trying not to look suspicious.

"You can touch my stuff, it's fine," Bowser laughed brightly. "I wouldn't have let you in all by yourself if I minded. And everything's good! Kid's out cold. Kamek looked exhausted, poor S.O.B."

Bowser withdrew and Luigi followed, plopping down on the bed beside the Koopa King. The pair laid there for a few moments of silence, staring up together at the ceiling. Bowser rolled over onto his side, looking down at the plumber with affection written openly on his face.

"Did you... Have a pleasant evening?" He rumbled, reaching out to stroke a claw down Luigi's cheek.

"I did. I really enjoy spending time with you."

Luigi rose to sit upright, leaning over to slant his mouth over Bowser's. They kissed languidly, hands caressing the other's body, holding each other close. Bowser slipped his tongue past Luigi's lips and the plumber swallowed a quiet moan.

"Would you... Want to get up to something?" Bowser rumbled. His touch wandered, sliding down Luigi's back to cup at his rear.

"M-maybe," Luigi shivered. The Koopa King's kisses turned a little naughty, especially with how his tongue seemed to fill the plumber's mouth. "If we're im-implying the same something--"

"Hey, hey, there's no pressure," Bowser pulled back and gave his lover a sympathetic smile. "Only what you're comfortable with, okay? No judgement, no expectations. I'm just happy to be with you."

Luigi squeezed his eyes shut anyways, embarrassed. He didn't want to seem like a coward right now. In truth, he was much more excited about the potential intimacy than even he expected. It was just very... Intimidating.

"What's wrong, babe?" Bowser shifted to lean over Luigi, concern leeching into his voice. "I don't wanna upset you, please let me know what's wron--"

"I know it's big!" Luigi yelped, only to slap his hand over his mouth, mortified. He couldn't help but keep talking. "I don't wanna get ripped in half!"

Bowser was silent for a moment before he cackled. He was lost in the humor of the situation, covering his eyes with one heavy claw as he hollered a laugh. Luigi harrumphed, moving to slide off the bed so he could dramatically storm out of the room. Bowser caught him instantly, cradling the plumber in the curl of his arms.

"What?" Luigi squawked. His cheeks were bright red. "What's so funny?!"

"You are, you adorable goof," Bowser had to put in some real effort to stop laughing, wiping away a tear before looking down at his lover with a dopey grin. "Sorry, that was just such an honest answer, it really tickled me."

Luigi opened his mouth to snark but quickly swallowed his words. Bowser held him against his chest, eyes lidded, a flirtatious smirk playing at his maw. The plumber could feel corded muscles shift under his palms. He shuddered. 

"I am," Bowser purred, tipping Luigi's face up with a claw under his chin. "But we'll make it work. I'll go extra slow. You just tell me the moment anything hurts or if you feel uncomfortable, okay?"

"O-okay," Luigi's heart hammered in his chest. He hadn't seen the Koopa King behave like this before. Then again, the relationship as a whole was still pretty new. "I've never, uhm. Y'know. Bottomed--"

"--had sex, I know. Wait, what?"

"I've had sex!" Luigi felt some pride swell in his chest and he grinned. "Wow, you thought I was a virgin this whole time?"

"Uhhh," It was Bowser's turn to look embarrassed. "I mean. I dunno, I figured. You've got a busy schedule?"

Laughing sweetly, Luigi took Bowser's face in his hands and pulled him down for a kiss. The Koopa King startled this time when an insistent tongue pushed into his mouth, playing with the sharpness of his teeth. 

"I want to do this," Pulling back, Luigi gave his lover a lopsided smile, some confidence returning to his voice. "I trust you."

Emotion had tears pecking at the corners of Bowser's eyes. He superceded his feelings so he could kiss Luigi breathless, returning his palm to the plumber's rear. Luigi's body moved to follow Bowser's touch and he let out a muffled moan as the Koopa's tongue languidly fucked his mouth. When they broke away, Luigi was breathing hard.

"Can I help you out of these clothes?" Bowser rumbled, hooking a claw in the waistband of his overalls, tugging playfully.

"Please." Luigi nodded, already undoing the buttons on his chest.

Again, the calculated tenderness in Bowser's movements surprised Luigi, less and less due to his personality and more due to his size. He wondered for a moment, as claws dutifully popped the buttons on his shirt, how difficult it must be to move around when you're so wide and tall. The spikes and the tail didn't help either but Luigi liked all aspects of the Koopa King.

"Briefs, huh?" Bowser chuckled once he was down to his underwear. 

"You don't want things loose when you jump a lot for a living," Luigi explained over another round of uproarious laughter. His cheeks were starting to hurt from blushing. "You don't even have your thing out."

"My thing?" Bowser was suddenly on top of Luigi, caging him between the columns of his toned arms. His breath washed hot over the plumber's face which only made him shiver. "Do you wanna see it that bad?"

"O-of course," Luigi gulped audibly. He tried to salve his nerves by running his touch along Bowser's chest. "Of course I do."

Leaning on one hand, Bowser dragged his other claw down his body. The soft underbelly scales at his groin shifted like he was flexing. Slowly, gradually, his cock unfurled, pushing out of his pubic slit an inch at a time. Luigi's eyes grew wider as his lover's member was revealed.  

The head was flared and shiny with pre-ejaculate. There were soft spikes that dotted down the shaft, following the rosey red flush at the tip down through a gradient of green to golden yellow. It was alien. It was scary.

It was alluring.

"Your turn," Bowser purred. He sat back on his haunches, doing nothing to hide his excitement, his cock starting to fully perk to attention. "I remember those issues of Power Tennis from last year so I'm ready to be impressed."

"I saw you saved a few copies," Luigi chuckled airily. "I could sign them if you want."

"Perhaps." Bowser grinned.

With trembling hands, Luigi pushed off his briefs and dropped them to the floor. He didn't even want to look at Bowser right now, far too fearful of the Koopa King's judgment. Bowser whistled and pried the plumber's hands off of his face.

"Better than I could have even dreamed," He crooned, nuzzling at Luigi's cheek. "Are you okay? You don't seem... I want..."

"I'm sorry," Luigi gushed, properly peeling his hands from his face. He met his lover's eyes with a forced smile. "I'm... I'm just so nervous. I don't want you to think little of me..."

Bowser watched him in silence, scanning his face, cataloguing his movements. Without another word, he bent down and took Luigi's cock fully in his mouth. Luigi squawked, lunging to tangle his fists in Bowser's hair. The gentle suction and wet heat around his member had him seeing stars.

"See?" Bowser pulled back, making a show of how Luigi fit so perfectly on his tongue. "I like you. All of you. There's nothing to be nervous about, I promise."

Luigi nodded, biting down on his finger to muffle the lewd noises drawn out of his chest. Bowser didn't need to even move his head much with how big he was, sucking insistently then nearly jerking Luigi from root to tip with the dexterity of his tongue. He glanced up at his lover, gingerly pulling his hand away from his face once more.

"I wanna hear you." 

The lust in Bowser's eyes was intimidating in a way that made Luigi shiver. He didn't keep quiet anymore, moaning and keening as he was devoured. Claws delicately scratched down his sides and his back, coaxing his legs to splay open. He wouldn't last long like this.

"B-bowser," Luigi squeaked, tugging on his hair again. "I can't-- I'm so close--"

If anything, his desperate pleas only spurned Bowser on. His tongue worked Luigi's length up and down, slipping further to lave at his taint, ghosting along the soft curve of his ass. Luigi came with a sob, arching his back into Bowser's mouth before going complete lax against the bed. Bowser watched him pant, wiping off his mouth with the back of his hand.

"Good?" He gloated, leaning down for a wet kiss.

"D-definitely," Luigi panted. He could taste himself on Bowser's tongue. Filthy. "Should I uhm. Return the favor?"

"I'd like that. If you're amicable."

They swapped places, Bowser lying back against the headboard with Luigi kneeling between his legs. God. He was even bigger close up. He didn't even have to touch it directly to feel the heat sloughing off in waves. Then again, Bowser could breathe fire. It made sense that he ran hot.

Luigi ran his hands tentatively up and down Bowser's shaft. The Koopa King was clearly trying to play it cool but seemed just as flustered as his partner. Lifting his sizeable length, Luigi delicately licked at the head, just once, then looked to Bowser for approval.

"D-damn," The Koopa King huffed. His pupils were blown so wide, there was just a scant trace of crimson left to see. "You uh. Don't gotta worry about your teeth by the way."

"Because your scales are so tough?" Luigi offered innocently. He licked along the slit again.

"N-no-- well. Yeah," Bowser's chuckle was both humorous and flustered, his chest heaving. "But mostly because, uh, I like it."

Eager to test the confession, Luigi adjusted his grip to wind both hands around the middle of Bowser's length. He did his absolute best to at least get the whole head in his mouth, stretching his jaw and pushing his cock past his teeth. When they delicately scraped at Bowser's member, he let out a breathy sigh and Luigi watched with fascination as smoke seemed to curl out of Bowser's throat.

"You're so cool," Luigi muttered, still peering up at his boyfriend while he suckled at his dick. "Everything you do, everything about you is just so interesting and fun and--"

"Babe," Bowser huffed. He'd tilted his head back, a paw over his eyes as he panted. He parted his claws just to peek down at the plumber. "I'm. I'm not gonna last long at all."

Luigi's brows rose. That was certainly a boost to his confidence. How many people ever before him had gotten the mighty Koopa King so dang flustered like this? He adjusted his attention, doing his best to stroke both fists up and down Bowser's length as he licked and kissed between his grip. The soft spikes down his shaft seemed to be as sensitive as the head so Luigi paid extra attention to them, pressing against them with his thumb, licking eagerly and skating his teeth up and down. A sharp grunt punched out of Bowser's chest, accompanied by another plume of thin smoke.

"Luigi--" Bowser hissed, laying one paw atop soft dark hair. "Fffuck, babe, I'm gonna-- I'm--"

Hearing his own name roll off such a wicked tongue made Luigi shiver. In just a short month, he'd already grown so accustomed to every 'babe' and the occasional 'doll' that his own name felt far more sultry coming from the Koopa King.

Flustered but determined, Luigi put his mouth back against the tip of Bowser's cock, jerking his shaft more firmly and licking with a bolstered eagerness. The Koopa King let out a ferocious roar, his head fully lolling back with the roll of his body. It was incredible to watch. Luigi didn't get to admire the display for more than a few seconds, however, as his vision was suddenly obscured by a flash of white.

He should've figured the load of such a sizeable Koopa would be enormous.

The first few heavy pulses filled Luigi's mouth until he had to pull off for fear of drowning out of water. He coughed and spluttered as every following wave caught him in the face. Good lord, it seemed to go on forever. 

When the deluge finally calmed, Luigi reached up to swipe his closed eyes clean, doing his best to blink away any lingering drops. He swallowed what had ended up in his mouth and shivered. The flavor was incredibly confusing, bitter and salty but a little sweet with a spicy aftertaste. Strange but non-offensive.

He finally looked up at Bowser and had to hold back a laugh. The Koopa King looked absolutely humiliated, his eyes wide, his mouth slightly agape.

"I'm... Hoh," Bowser huffed, doing his best to sit up. His member softened, shrinking down a lot more than Luigi expected, before Bowser tucked himself away fully. "I don't wanna say I'm sorry 'cause I'm not but I feel bad for the... Mess."

"It's fine," Luigi beamed, allowing his boyfriend to clean off his face with the bedsheets. "I uhm. I liked it. A lot."

"Me, too," Bowser smiled. He looked exhausted. "You uh... Don't mind if... That's it?"

"I'm satisfied," The plumber kept his tone light and playful. "Plus, uh. I think there should be a lot of... Prep before we do it properly."

"That's smart."

After stripping the bed of the ruined sheets, Bowser took up one side, folding back the remaining covers invitingly. Luigi washed off his face in the adjoining bathroom suite, making a mental note to offer they bathe in such a massive tub together tomorrow, and slipped his briefs back on before crawling into bed.

"You probably won't even need this," Bowser gestured with a nod at the blankets. "I run pretty hot."

"I've noticed," Luigi winked. "I'll be fine. Thank you."

They both leaned in, sharing a rather chaste kiss given what had just transpired. Bowser made sure to face Luigi as he dozed off to keep his spikey shell pointed in the opposite direction. That just meant the plumber had the perfect opportunity to lay his head against Bowser's chest.

Luigi worried for a moment that he'd be up for a while. This was a new environment, sharing his boyfriend's bed, and he hadn't even slept with someone else in a good while. Much to his delight, Luigi was out in moments, lulled to sleep by the steady rise and fall of Bowser's slumbering form.