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If Luffy's skin could strain, his knuckles would be white as a sheet where he clings to the edge of Law's desk, papers and whatever else under his palms and ass. At his feet, Law is on his knees, his mouth on Luffy's cock turning Luffy's brain to mush. His knees tremble, buckling so that he has to put more weight on his hands, especially when Law's hands run up his thighs and he sucks harder. Luffy gasps at a more insistent drag of Law's tongue, whining when it teases under the head of his cock.
“Tr... Traf—” Luffy's words disappear into a moan when Law swallows, a shudder going through him.
He isn't sure how this even happened: he only came in here because he was hungry and wanted to demand snacks from Law and now he's having his soul sucked out through his dick. Not that it's unwelcome—it never is—but Luffy has started to notice that Law tends to get like this when he's been holed up in his office for a while, working on... whatever it is he works on. Law's fingers run lightly over Luffy's balls and Luffy gasps afresh, hips twitching into the touch. He grits his teeth, gripping the edge of the desk even harder—Law always knows just how to touch him to make him feel amazing. At a harder suck from Law, Luffy groans again, his knees weak, and Law drags his tongue from the base of Luffy's cock to the tip. He swallows around the head and Luffy can't stifle a higher cry.
“Traffy!”
Law slowly pulls off, denying Luffy the orgasm that he was dangling almost within his grasp. Despite Luffy's grumbling protest, Law fixes him with an unimpressed look.
“Still with that nickname?” he asks.
“Why not?” Luffy asks, a touch breathless as Law stands.
Unable to resist, Luffy reaches up, cupping Law's face in his hands and going up on his toes to kiss him. Law's long arms encircle his waist to pull him close and Luffy opens his lips to swipe his tongue against Law's. From somewhere outside the office Luffy hears a gull squawking, but his attention can't stay on it when one of Law's hands moves up to tangle his fingers in Luffy's hair, massaging his scalp so that Luffy hums into the kiss. With the grip on Luffy's hair, Law tips his head back, exposing his neck before trailing kisses down it; when his tongue licks over the hollow of Luffy's throat (Law once told him it was the super-something notch) Luffy whimpers softly.
“You okay?” Law asks against Luffy's skin, his hands still holding him close.
Luffy nods, his breath hitching once again when Law's tongue moves along his collarbone, his open shirt offering it up to him readily.
“Want you,” Luffy confesses, his own fingers in the fabric of Law's shirt, crumpling it around Law's biceps.
“You want me?” Law asks—Luffy can feel that smirk against his skin and he nods again.
“That's what I said,” Luffy says, frowning a little but then biting his lip when Law's teeth graze over his neck.
“Turn around,” Law orders, leaving a parting kiss to Luffy's cheek as he lets him go and starts rooting in his desk drawers.
Luffy complies, listening to Law rummaging and looking down at the desk to see pages of hastily scribbled notes, some half crumpled where Law has clearly reconsidered them, before he feels a hand on his ass. It slides up his back, bending him over the desk, and Luffy rests his weight on his hands again. From behind him he hears the sound of a bottle opening and then feels Law's wet fingers slipping between his ass cheeks. The first slides inside him with little resistance—Luffy's devil fruit powers tend to make this part a lot easier after all—and soon Law adds a second finger, scissoring both to make Luffy's toes curl in his sandals.
“Traffy,” he breathes when Law's fingers start to steadily move in and out of him, teasing him with practised ease.
Law lets out a low chuckle. “Having fun?”
“Feels good,” Luffy nods, his fingers clenching on the desktop when Law's brush over his prostate as if by accident. “More.”
“Hmm?” Law asks. “What do you mean?”
Luffy swallows a grumble of frustration. “Want more.”
“Ask nicely then,” replies Law, his voice almost lazy and touch more teasing again.
“Please,” says Luffy, “please give me more!”
Another soft chuckle comes from behind Luffy and he gasps when Law's fingers seek out his prostate again, this time moving deliberately against it. Luffy's spine melts at the feeling, dropping to his elbows on the desk and shoving Law's papers aside. Some of them scatter and fall to the floor, joined by pens and a thick book of what looks like anatomy. Neither of them pays the items any heed: Luffy lets out a strangled sound as Law keeps moving his fingers, knowing just how to take Luffy apart. When he adds in a third finger alongside the others to no particular fanfare, Luffy jolts on the desk, his hips stuttering backwards into the touch and his mouth dropping open on a needy moan.
“Th-there,” he gasps, enjoying the stretch of Law's fingers and the way Law's other hand holds his hip, keeping him in place against the desk. “Traffy!”
Law keeps up the pace of his fingers—really, with Luffy's devil fruit powers it's not necessary to do this for so long, but Law knows how tightly it winds Luffy and Luffy knows Law isn't going to give in that easily. Still, it doesn't mean Luffy can't try.
“Traffy,” he grumbles, clenching a little around Law's fingers in an effort to goad him into progressing. “Want you.”
“You're still not asking properly,” Law says unhurriedly, twisting and curling his fingers to make Luffy shudder and arch his back. “You know how this works by now.”
Luffy doesn't even have time to glower in annoyance before Law's fingers thrust a little harder, making his vision sparkle at the edges. A tremble goes through him, his voice leaving him in a broken cry.
“Please,” he groans, pushing back on Law's fingers. “I want you, please.”
“Please what?” asks Law. “I'm already here.”
Luffy almost grumbles. “Please fuck me.”
For a moment, Law doesn't stop, one hand still holding Luffy still while the fingers of his other hand continue sliding in and out of Luffy, but then his pace relents and he withdraws his fingers. Luffy swallows down the sound that threatens to leave him at the loss, pushing himself up on his hands and turning around to face Law again. With one hand, Law shoves down his jeans, his other stroking his cock and covering it in more of the lubricant. He meets Luffy's gaze, his dark eyes flashing with desire.
“Come here,” he says, sitting in his chair.
Luffy bites his lip, following and climbing into Law's lap, straddling his hips. Leaning forward, he steals a greedy kiss from Law's lips, arms around Law's neck. With strong hands, Law pulls Luffy close, one on the small of Luffy's back as the other slides down to line his cock up between Luffy's ass cheeks. Impatiently Luffy pushes back, angling his hips to get the head of Law's cock inside him.
“Fuck,” Law growls, sinking Luffy down in his lap until he bottoms out.
Luffy's mouth drops open, the feeling of Law's cock satisfying him far more than Law's teasing fingers. “Oh my god!”
Slowly he starts rolling his hips, rocking forward and back in Law's lap, his fingers curling in the fabric at Law's shoulders. Law's lips find Luffy's collarbone again, sucking a little mark into his skin, and Luffy can't keep from gasping.
“Traf... fy...” he groans, moving a little faster in Law's lap. Law's teeth nip at Luffy's skin, making Luffy tremble in his arms. “Feels good.”
“So do you,” Law groans against his neck, his voice low and gruff with arousal. His hands seem to be all over Luffy, running up and down his back, over his hips, gripping his thighs; Luffy arches his back, hissing as the angle makes stars burst behind his eyelids. When one of Law's hands wraps around Luffy's cock, Luffy gasps anew, the tension in his body tightening like a bowstring.
It doesn't take much longer before Luffy comes with a cry, clinging tighter to Law as he trembles from head to toe. Law holds him close, soon coming too with a groan into Luffy's ear. The two of them slow their movements to a stop, catching their breath between more kisses. When Luffy looks into Law's eyes, Law gives him a smirk back, his grey eyes dark.
“You okay?” Law asks, his inked hands running over the bare skin of Luffy's hips.
Luffy nods, his own fingers tracing the seams of Law's shirt. “Can I have a snack now? I'm still hungry.”
For a moment, Law says nothing, but then he lets out an incredulous snort of laughter, giving Luffy another kiss. “Sure, I'll get you something.”