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Doflamingo slumps into the house at the end of the day, feeling like he's nearing the end of his rope. You'd think being the owner of a multi-billion dollar corporation would mean a man would stop having to schmooze with the distasteful, and yet, ever since inheriting, he's found that he's been forced to do it more than ever. After spending all night at a charity dinner, shaking hands and complimenting terrible jewellery, he just wants to kick off his shoes and lie down.
His exhaustion is why he doesn't register that his bedroom door, which is usually kept shut tight, is ajar. It's hard to miss the fact that the bedside lamp is on, though, and even more impossible to miss the vision curled up on top of the covers.
“Rosi?”
His teenage brother raises his head from the pillows with a kittenish yawn, scrubbing at his eyes with the back of his wrist. Sleep-soft and smiling, all gangly legs and floppy hair, he’d look painfully innocent if it weren’t for his outfit.
“Aniue?” Far from his usual oversized pyjamas, Rosi has dropped himself into Doflamingo's bed wrapped up in a confection of satin, silk and lace, all in a shade of snowy white that highlights the pink tones in his pale complexion. As he sits up, the frothy little baby doll Doflamingo's little brother is wearing shifts to reveal a tantalizing flash of bare chest. Doflamingo can't keep his eyes from following that strip of naked skin down, tracing the blond fuzz of his treasure trail until it dips under the lace waistband of his silky panties. His wandering gaze halts there, caught by the way the thin fabric does nothing to hide the shape of Rosi's cock. It's far too large for the garment it’s trapped in, and starting to tent it out as Doflamingo watches.
“What have we here?” Doflamingo licks his lips, then flicks his eyes back up to Rosi's face. “A runaway bride?”
“Do you like it?” Rosi asks. He's trying to sound confident, but it doesn't quite reach his eyes, so the overall effect of his posturing is to emphasize just how very inexperienced he is at playing this kind of game.
Was I ever that young? Doflamingo wonders as he considers what to do next. While this circumstance has taken him completely off guard, it's not like he's never thought about how pretty his little brother is. He'd simply been planning a slow, measured seduction, so as not to scare him off. If Rosi had decided to crawl into his brother’s bed all on his own though, well. Doflamingo has never claimed to be some kind of martyr.
And that thought decides his next course of action.
“Very much,” he says, tossing his jacket off and loosening his tie as he stalks towards the bed.
“Oh. Okay.” The relieved smile on Rosi’s face is a beam of moonlight cutting through the clouds on a stormy night as he budges over to make room for Doflamingo on the bed. It's a ludicrous act given how big the mattress is, but the movement highlights the bulge of his thighs around the garters holding his sheer stockings up. There's not much there—his baby fat has started melting off now that he's hit his growth spurt—but there's enough that it still takes all of Doflamingo's considerable self-control not to dive down and bite that soft squish of flesh. He clears his throat instead.
“Did you think I wouldn't?” It's with practiced care that Doflamingo strokes his hand down Rosi's inner thigh, soaking in the contrast between slick fabric and soft skin as he eases his younger brother’s knees apart.
“I wasn’t sure,” Rosi says. “I’ve never, um. Done this before.” He toys with the hem of his top, anxious. But of course he is. He’s a virgin.
That fact echoes through Doflamingo's head like a thunderclap, bouncing back again and again. A virgin. His shy little brother is untouched, pure as the white ribbon tied in a floppy bow over his heart.
“Never? A pretty little thing like you?” Doflamingo asks as he crawls into the space between Rosi’s legs. The thought of being the first one to have him just makes his hunger grow. “I’d have thought you’d have your pick of likely lovers.”
“I picked you, didn’t I?” Rosi lifts his chin defiantly, and my, but his Donquixote blood is obvious when he’s annoyed.
Doflamingo laughs, then cups Rosi’s cheek fondly. “So you did, baby. So you did.” Then, he leans in to kiss the pout off his brother’s lips.
Rosi hums, winding his arms around Doflamingo’s neck and clinging to him as he tries to kiss back. He moves awkwardly, lips uncertain and clumsy as he tries to lick Doflamingo’s mouth like some kind of puppy. It’s painfully charming how hard he tries, despite his lack of skill.
“Like this,” Doflamingo murmurs, then thumbs Rosi’s lips to prompt them to part, before sliding his tongue past them to taste that sweet mouth of his. His little brother moans as Doflamingo takes control, filling his mouth with his tongue and claiming him, possessive and hot.
When Doflamingo finally lets their lips part, he’s pleased to see how hazy Rosi’s eyes have become. He gives his lower lip one last thoughtful nibble, then decides that it’s time for the next step. The bow sitting in the center of the ruffles of Rosi's babydoll is easy enough to pull untied. From there, all Doflamingo has to do is nudge the straps down Rosi's shoulders while his brother eagerly wiggles it the rest of the way off, baring his upper body.
“Has anyone ever touched you here?” Doflamingo brushes his knuckle over the swell of Rosi’s chest, pausing when he notices that his nipples are inverted, hidden away from the world.
“N-no?” Rosi’s cheeks gain a delicate flush as he admits, “I tried once, but it felt weird…”
“Weird?” Doflamingo drags his finger over Rosi’s pec in a lazy spiral, circling closer and closer to his goal. “What does that mean, baby?” As he asks, his fingertip finally hits the divot at the center of Rosi’s dusky pink areola, provoking a squirm and a whimper out of his younger brother as he presses down.
“It was too good?” Rosi bites his lip and tilts his head down to hide behind his bangs, which is adorable, except that it hides his face from Doflamingo, which is a crime.
“Look at me, Rosi.” Doflamingo tips Rosi's chin towards him, so that his lovely countenance is fully revealed. He leans closer, watches how those gleaming red eyes flutter shut as he approaches, how those soft, petal-like lips part, resembling nothing more than some exotic night-blooming flower.
“Aniue…” Rosi whispers.
The tail end of the sound is swallowed up by Doflamingo's mouth. His little brother shivers when Doflamingo sucks on his lip, then gasps when Doflamingo pushes his finger into the sunken peak of his chest again as they kiss, rubbing and teasing it until he can feel the buried tip start to harden.
“Mmn!”
Doflamingo glances down at his brother’s chest, and sees the very tip of his nipple starting to peek out from its hiding place. When he gives that timid bud a flick with his nail, Rosi’s whole body twitches, arching into Doflamingo’s touch.
“Oh!”
“Cute,” Doflamingo breathes, brushing another kiss onto the corner of Rosi’s lips before he crawls down his body. Rosi covers his mouth and blushes even harder when Doflamingo looks up at him through his lashes. “So shy, baby.” He laps at Rosi’s puffy nipple with the flat of his tongue and feels his brother quiver from the pleasure. “Let’s see if I can draw you out.” And then he seals his mouth over Rosi’s chest and sucks.
“Ah!” Rosi moans like he can't stop himself, hands dropping in a flash to clutch at Doflamingo’s hair. Doflamingo chuckles, then catches his brother’s newly exposed flesh between his teeth and tugs on it.
“Aniue!” Rosi cries out. Now that Doflamingo has heard how sweetly he calls his name, he’s addicted. He keeps ravaging Rosi’s nipple with his mouth, using his lips and tongue to bully the tender nub until his brother's panting starts to verge on sobs.
“God, Rosi,” Doflamingo purrs. “You’re delicious.” He swaps sides and lavishes attention on Rosi’s other nipple, rolling the first one between his fingers so that it doesn’t feel neglected.
“Ah! Ah! Ah!” Rosi whips his head side to side, overwhelmed by the attention. His lithe hips are bucking up against Doflamingo’s abs, and Doflamingo can feel how hard he is as he rubs against him.
“So sensitive,” Doflamingo scrapes his blunt nails across both of Rosi’s nipples, and grins wide when Rosi shouts so loudly that his voice cracks. “Look at you. You’ve stained your panties.”
He cups Rosi’s bulge with his hand to prove it, using finger and thumb to stretch the fabric—so damp it’s almost gone see-through—over the contour of his erection.
“So cute. All wrapped up for me, pretty as a present.”
“I-it is a present!” Rosi manages to stammer, adorable as an angry kitten.
“Of course.” Doflamingo leans down, grinning so wide that his face hurts. “The best one I’ve ever been given.” Before Rosi can question whether Doflamingo is referring to the lingerie or just to himself, Doflamingo licks his tongue up the hard line of Rosi’s cloth-covered cock. Rosi’s head slams back against his pillow, shouting Doflamingo’s name as he floods his already-soaked panties.
“Good boy,” Doflamingo murmurs, savouring the sting of Rosi’s wicked fingers clutching at his head. “Let it out, baby, just like that.” He kneads Rosi’s pulsing member with the palm of his hand, continuing to drop sweet nothings from his mouth as his brother’s hips buck, riding the waves of his orgasm.
Finally, Rosi sighs and goes lax. When he does, Doflamingo hooks a finger into Rosi’s waistband and eases his underwear to the side.
“Don’t,” Rosi whines when Doflamingo reveals the delicious mess of his cock and balls, drenched in sticky white, but Doflamingo hushes him softly.
“Can’t leave these on, angel. Look how dirty you got them.”
A pearly string of liquid stretches between his brother’s cock and the drenched cloth before snapping as Doflamingo pulls the crotch of his underwear even further out of the way. Doflamingo’s mouth waters. It only takes one more tug to tear the flimsy fabric right off Rosi’s body.
“Hey!” Rosi yelps, eyes wide. “You didn’t have to wreck them!”
He looks so dismayed that Doflamingo can’t help but laugh. “Who doesn’t rip the wrapping paper off their presents now and then?” He tosses the ruined panties over his shoulder, then settles back down onto his elbows. “Besides, what’s a scrap of lace compared to getting the chance to lick you clean?”
The high, keening noise that Rosi makes when Doflamingo closes his mouth over the head of his soft cock is sweeter than honey.
“No! Doffy, it’s too much!” Rosi’s hands push weakly at Doflamingo’s head, frantic, but too shaky to dissuade him. Doflamingo’s grip on Rosi’s hips is much stronger than his struggling. For all his little brother tries to wiggle away, he's pinned down at Doflamingo's mercy.
“Hmm? Doffy? Who’s that?” Doflamingo takes his time, mouthing open, messy kisses up and down Rosi's oversensitive shaft until there’s tears rolling down his little brother’s cheeks. “I remember you calling me something much nicer before.”
When Doflamingo’s prompting sinks in, Rosi’s frantic eyes light up.
“A-aniue!” His voice is hoarse from screaming, thick with tears, and so very lovely. “Please!”
“Please what, little brother?” Doflamingo shouldn't tease Rosi so, but fuck, he can't help it. He was made to ruin him. He nuzzles Rosi's thigh, patiently waiting for him to figure out how to string words together. To his surprise, Rosi slides his legs further apart, moves one trembling hand to spread his ass, and oh.
“Touch me here instead?” He asks, toying with the silver base of the plug nestled between his cheeks. How Doflamingo had missed that is a mystery, but now that he knows it's there, he's obsessed.
“You put that in all by yourself?”
“Uh-huh?”, comes Rosi’s wavering reply. Doflamingo is struck by a vision of his brother biting his lip and working himself open with inexpert fingers, pushing through his discomfort because of how much he craves his older brother. He has to close his eyes for a moment and breathe. It wouldn't do to come in his pants when Rosi so obviously wants to be fucked.
“You worked hard, didn't you?” Doflamingo lifts one of Rosi's legs onto his shoulder as he shifts positions, savouring the heat of his brother's skin through the thin linen of his shirt. “You just lie back now, and let me take care of the rest.”
Rosi tries to reply, but he yelps instead when Doflamingo pulls the plug out of his ass. His tight little hole winks cutely for barely a moment before it clamps shut. Doflamingo rubs the pad of his middle finger over that slick pucker, testing its give. It's hard to work even that one digit inside of Rosi's heat—he’s not nearly ready for Doflamingo’s size.
“Spread your legs a bit more for me, angel. There we go.” When his brother finishes moving, Doflamingo takes a hold of Rosi's hips, then lifts.
“No, you said you wouldn't—Oh!” Rosi starts to try to shake Doflamingo off, but stops when he realizes that instead of going back to his cock, Doflamingo’s mouth has started lavishing attention on his ass instead.
“Ah! Ani–Oh!”
Rosi's hips fit perfectly into Doflamingo's hands, and for all that they jerk, he can't find the leverage to buck into or away from Doflamingo's hungry mouth. All he can do is clutch his thighs around Doflamingo's head and take it as Doflamingo works him open, sucking and kissing his rim until it softens and loosens enough that Doflamingo can work the tip of his tongue into him.
“Ah! Need! I n-need–!”
He whimpers and shakes when Doflamingo starts to push his tongue deeper inside of him, inner muscles slowly giving way in the face of Doflamingo’s tenacity. Honestly, the sounds Rosi makes as Doflamingo licks him open are a symphony of the highest order. Forget going to a concert hall; Rosi’s broken sobbing as Doflamingo makes out with his greedy little hole is the most beautiful music Doflamingo has ever heard.
“Hnnng! Plea–! Aahn!”
Doflamingo chuckles when he notices that his brother's cock is hard again, bouncing against his stomach with every gasping breath he takes. He gives Rosi’s ass one last, loving kiss, then pulls off of him with a wet, sucking noise.
“Mm, there we go.”
He keeps Rosi’s hips in the air with one hand as he probes his hole with the fingers of the other. Two fingers glide in easily now, and he's sure he could fit a third if he had more slick than just his own spit to ease the way.
“Perfect.”
He lowers Rosi back to the bed, then pauses for a moment just to look at him. Dishevelled and panting, his little brother is much less put together than he was when Doflamingo came home, and somehow even more beautiful for it. His wheat blond hair is sweat-darkened and mussed from Doflamingo's fingers, and his lips are red and swollen from Doflamingo’s kisses. There are purpling marks surrounding his puffy nipples that match the shape of Doflamingo's mouth, and his hard cock is leaking, flushed and begging to be touched. Every inch of him screams “I belong to Doflamingo”.
“Aniue?” Rosi asks, voice soft and confused. “Is something wrong?”
Doflamingo can't stop himself from smiling. “No. Just taking in how pretty you are, baby.” He crawls up to cover Rosi's body with his own and claims his mouth again.
“You think I'm pretty?” Rosi asks when they break the kiss, like Doflamingo might be lying to him.
“The prettiest, little brother.”
And Rosi looks at him with those big, dark eyes and breathes, “Kiss me again?”
There is no world in which Doflamingo could say no. He kisses Rosi thoroughly, until his brother starts panting against his mouth and grinding his cock into Doflamingo's stomach, until he gasps, “Please, aniue, I want to feel you in me,” honey-sweet against Doflamingo's lips.
“Anything you'd like,” Doflamingo says, getting up to fetch the lube from his bedside table. He takes the opportunity to shuck his clothing, preening a little when he sees Rosi lick his lips, the little minx.
“Oh.” Rosi's eyes go wide when Doflamingo’s cock springs free of his clothes. “Will it… fit?”
“Of course it will,” Doflamingo says, settling back between Rosi's legs. “You were made for me.” He squeezes lube onto his fingers, waiting for it to warm before he pushes them back into Rosi. He intends to be generous with how much slick he uses, plans to use enough that it starts dripping onto the bed, but then Rosi tilts his hips and whispers, “How much more?” He bites his lip and reaches out to touch Doflamingo’s arm, trembling fingers wrapping around his wrist to tug at it beseechingly. “Please, I want you, aniue.”
Immediately, Doflamingo throws his original plan of “slow and gentle” out the window. He barely takes the time to wipe his hand on the sheets and kiss the side of his brother's bent knee as he lines himself up. “Take a deep breath, baby, that's it.”
And then with a tilt of his hips, he’s in. A groan tears its way out of his throat as he plunges into Rosi’s tight, wet heat, harmonizing with the thin keen that Rosi makes as he wraps his legs around Doflamingo’s back.
“Fuck, baby,” Doflamingo grunts when he bottoms out. “You feel divine.”
Rosi’s head is thrown back against the pillow, eyes scrunched shut with exertion as he whines, “Big…”
“Shh, it’s okay,” Doflamingo presses his lips to Rosi’s face to distract him, pecking his forehead, his cheeks, his chin, as he murmurs encouragement. “Keep breathing through it.” He rocks his hips, hunting for the right angle to make his brother feel good. “You can do it. You can take me. Come on, you're doing so well, angel. Is that starting to feel better?”
“Y-yeah!” Rosi says, his winces giving way to breathy giggles in the face of Doflamingo’s rain of kisses. “I can—oh!” His eyes fly wide when Doflamingo hits his sweet spot. “A-aniue! Don’t stop!”
“I couldn’t,” Doflamingo admits as he drops a sharper kiss just under Rosi’s jaw, letting his teeth dig into the thin skin hard enough to leave a mark. “You feel too good, Rosi. How could I stop when this is where I belong—inside of you, joined together as close as two bodies could be?”
He can hear Rosi’s breath hitching as he wraps his arms around Doflamingo’s neck.
“Yes,” says Rosi, his sweet little brother, his angel, his joy. “Together.” As Doflamingo starts to speed up his pace, Rosi moans, “Make me yours, aniue! I want to be yours forever!”
“Forever, hmm? Is that why you showed up dressed all in white?” Doflamingo purrs, unwilling to give up the chance to confirm Rosi's motivation for being here. “Were you hoping there'd be wedding bells?”
“I-I!” Rosi flushes immediately, guiltily red. “I don’t, um!”
“You can admit it, baby. I don’t mind,” Doflamingo says, shifting the angle of Rosi’s hips so that he can fuck him even deeper. “Tell big brother the truth.”
“Yes!” The moment he realizes that Doflamingo won’t be mad at him, Rosi shouts his confession. “I want—! Make me your bride? Aniue, I want, oh!” He cuts off, voice breaking as Doflamingo strikes his sweet spot, eyes rolling back in his head, before he manages to choke out, “Please!”
“Then you’re mine, my angel, my little wife,” Doflamingo grunts, sweat starting to drip down his brow from his efforts, “and I'll be yours, too. Do you want that?”
“I do!” Rosi cries. “I do, I do, I do—!” His frantic calling cuts off when Doflamingo seals their vows with a kiss tinged salty by the tears dripping down Rosi's cheeks. Doflamingo comforts his little brother by fucking him harder, slamming into him until it feels like their bodies are melting together into one perfect whole, until Rosi groans into his mouth, spurting shot after shot of hot come between the two of them as he shakes. His walls spasm around Doflamingo’s cock, clenching and squeezing until Doflamingo also hits his peak with a low growl. He tears his mouth away from Rosi’s to snarl a curse as he fills his little brother with his love.
After, when Doflamingo has wiped the both of them clean and they’re curled up under his covers, Rosi cuddles into his side and says, “Did you mean it?”
“Mean what?” Doflamingo asks, already half-asleep.
Rosi is quiet for a long moment, then he says, “What you said about… being mine?”
Doflamingo laughs, because of course that’s the worry that would be bouncing around his brother’s silly, fluffy little head. Not the logistics of what the future might hold, but simply wondering about the nature of Doflamingo’s affection.
“‘Til death do us part,” Doflamingo rumbles as he tucks Rosi tighter to his chest, stroking his hand down his brother’s back. It’s all the answer he needs to give, he thinks. Certainly Rosi seems to be happy with it, because he sighs softly and closes his eyes, letting his head turn into the crook of Doflamingo's neck.