Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2004720.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Tennis_no_Oujisama_|_Prince_of_Tennis
  Relationship:
      Niou_Masaharu/Sanada_Genichirou
  Character:
      Niou_Masaharu, Sanada_Genichirou
  Additional Tags:
      Plot_What_Plot/Porn_Without_Plot
  Stats:
      Published: 2014-07-22 Words: 2873
****** Ad Libitum ******
by seki
Summary
     It might seem like jumping ahead, but well, why waste time?
     (SanaNiou first-time sexytimes, because apparently my brain felt like
     it.)
Notes
     This is meant as a sort of side-scene to Legacy, but all you actually
     need to know from that is that Sanada and Niou have been dating for a
     while.
See the end of the work for more notes
They'd never really talked about sex. To be fair, they didn't really talk much
about their relationship anyway; during makeouts they'd both sometimes ask a
muttered okay? when their hands wandered, but that was about the extent of it.
And hands did wander; Niou had groped Sanada pretty thoroughly through his
pants by now, and Sanada's hands had dipped below Niou's waistband at the back
a number of times when they were grinding against each other.
"Nn," Niou said when Sanada's hands slid downwards this time, tipping his head
back so Sanada would get the idea and pay more attention to his neck. "Fuck."
"Gladly," rumbled Sanada into Niou's shoulder, and it was a half-chuckle, but
it sent an urgent shiver up Niou's spine.
"Yeah," he said, trying to stop himself from panting, propping himself up on
his elbows. "Go on, then."
Sanada -- red-faced, his hair stuck to his forehead with perspiration, glorious
-- seemed to take a moment to catch on. "You mean, have sex?"
"Yeah." Niou managed a smirk. "I've had condoms and lube stashed in my bag for
a couple of weeks now. You wanna?"
"Of course, but--" Sanada glanced down towards Niou's bag, which he'd left by
the foot of Sanada's futon. "Right -- right now?"
"You did say nobody's due home for hours, right?"
Niou'd spent a while researching what would be involved in sex with a guy, once
it started to seem like it might be on the horizon. Which mostly meant he'd
snuck into his sister's room and looked at the stash of manga in the cupboard
she didn't think he knew about a few times. Then he'd done a little
supplemental research online and cleared up the worst of the fears he'd gotten
from the manga.
It was pretty clear which way round this whole thing was going to work with him
and Sanada when they actually had sex, he figured. And he was fine with that;
as long as he got off he didn't figure it mattered much which side of the
equation he was on really. He'd groped Sanada enough to have some idea of
proportion, and it wasn't like Sanada was really even much bigger than Niou
himself. But it was, well, a concern even so. Niou'd obtained lubricant,
anyway, and he'd sort of figured out how to use it, and what Sanada might need
to do to help, and all that. Explaining it to Sanada might be weird, but Niou
kind of liked the way Sanada could be so into kissing and touching but so
blushingly shy when it came to talking about it.
When he handed the condoms and lube to Sanada, Sanada blinked down at them,
then thrust them straight back into his hands.
"I need to -- bathroom," he said, looking embarrassed.
He was gone a while, which made Niou all kinds of antsy, and when he returned
he'd clearly just showered. Well, that was okay. They'd both showered already
after practise -- and Niou'd been extremely thorough, as he usually was when
they were going to be making out, just in case -- but maybe Sanada was just
being even more fastidious than usual. Niou wondered if he should offer to
shower again, but, frankly, Sanada was quite capable of asking Niou to wash
again if he wanted to.
Niou patted the futon next to him.
"How do you want -- I mean, what position do you want?" asked Sanada, quietly.
Oh god. "Uh. Well. With me on my back, maybe?" That seemed less impersonal than
the other options Niou'd seen, at least.
Sanada went scarlet. "Oh. Um."
"But we can just kiss for a bit first, let's not just jump into it." Niou
flashed a reassuring smile at Sanada. "I looked stuff up. I'll talk you through
it, okay?"
They got undressed, a little awkwardly, and then Niou pulled Sanada down onto
the futon and into a kiss; god, that felt good, skin to skin. Sanada was warm
and solid, and he arched into Niou's touch enthusiastically. After a little
while Niou felt the knot of tension in his stomach unclench a little. Yeah.
This was going to be awesome. Niou was determined it would be, and he usually
got his way. He slid his hand down to squeeze Sanada's erection. He'd only ever
felt Sanada up through pants before, and it was kinda clammier than he'd
anticipated. Still, Sanada gasped wonderfully into his ear and Niou grinned as
he traced the line of the vein along it towards the tip.
Teasing apparently wasn't allowed for long, though. Sanada rolled on top of
him, and then his hand was wrapped around Niou's cock, firm and unhesitating.
He had generous hands, with very solid calluses that Niou'd poked at in
amusement a few times. Niou'd wondered what those would feel like. It turned
out that they felt awesome, adding just a touch of roughness, and combined with
Sanada's confident strokes it was enough to make him bite back some
embarrassing noises.
"Hnn," Niou groaned, throwing his hands above his head, giving up on jerking
Sanada off because no way could he concentrate while Sanada was doing that to
him. Hopefully Sanada wouldn't mind too much if they took turns. "Yes."
"Good?"
"Shit, yeah."
Sanada paused, and then took his hand away abruptly, wiping it on his own
thigh. "I, ah. Looked some stuff up too? If you want, I can, um, do the stuff
myself."
He could do what? Niou blinked, and propped himself up on his elbows. "Er?"
"You know. Ready myself for you."
Niou's brain did a sudden, hasty reassessment. Oh god. Sanada had very
different expectations of which way round this was going to work, apparently.
His mouth opened and closed for a second, before he decided that he was
actually perfectly happy to roll with this turn of events, no need to argue.
Except this was Sanada. Something about the phrasing he'd used nagged him…
shit, knowing Sanada, he'd probably got some kind of guidance from a fucking
history book. Or from some textbook for monks. Niou was pretty sure it was
going to involve submission in some way, anyway. Niou couldn't imagine anything
less sexy than the idea of Sanada being passive.
Sanada was very very pink again. "So if you want me to--"
"No," said Niou, quickly. "But, uh, I guess if you can lie down first, so I
can, er, reach?"
Sanada nodded mutely, and climbed off Niou's legs, sprawling out face-down on
the futon.
"Ah, maybe… spread your legs a little? Yeah." Niou knelt between Sanada's
thighs, and bit his lip as he stared at Sanada's ass. It was a good ass; Niou
thought he could spend quite a long time staring at it. He'd snuck enough peeks
in the past, after all. And… here he was, and Sanada wanted him to fuck him,
and maybe everything had gone entirely upside down in the world after all.
He worked the lubricant into Sanada as gently as he could; Sanada was never
very vocal when they fooled around anyway, and right now he was burying his
face in his pillow deeply enough that it muffled any noises he might have made.
Niou had no goddamned idea if it felt painful or uncomfortable or anything. He
shrugged internally. Sanada was fully capable of telling him to go to hell if
he did something stupid, he figured. As it was, Sanada felt hot and damp and
tight around his fingers, and it felt like the muscles were rippling in there,
and the whole process felt strangely clinical to Niou. Niou'd had a girlfriend,
a year or so ago, who'd jerked him off a few times and who'd let him touch her
in return, and that was about all he could compare it to. It hadn't been nearly
as constrictive as this, but it had given him a similar organic feeling, the
vivid awareness of his fingers being inside someone's body, vital and visceral
and pulsing with their heartbeat.
Once Sanada felt reasonably slick -- and Niou could see that his shoulders had
relaxed, instead of being bunched up with tension -- Niou wiped his fingers
surreptitiously on the sheets and then slid himself along Sanada's back,
kissing up Sanada's spine as he went.
Sanada lifted his head from the pillow, slowly. "Mm?"
"You're pretty much ready. I think?"
"Oh." Sanada smiled, crookedly, with a hint of embarrassment. "It… felt good."
Huh. Niou's cock twitched, his ego and his libido both flattered to hell. "I
can keep going?"
"S'okay." Sanada shook his head. "You still want me, um. On top."
Niou nodded, as he stretched out next to Sanada. No passivity allowed. "Yeah.
You get to set the pace then, in case it's too… y'know."
The condom was simple enough; Niou'd tried one on a few times before and he
didn't even fumble with it. Sanada stared at it for a moment as if gathering
his courage, then he heaved himself up to sit on Niou's thighs. He shifted
forward a bit -- Niou could feel his cock rubbing against Sanada's thigh -- and
leant down and kissed Niou, clumsily. Niou wrapped his arms around Sanada's
neck, and they kissed for a while, like that, unhurried.
Sanada pulled away eventually, sat up, and fumbled under himself, and then the
very tip of Niou's cock was suddenly squashed strangely, as it pressed up
against Sanada's ass.
"Fuck," Niou said, trying not to squirm.
Sanada shifted, all those impressive muscles in his thighs clenching and
unclenching as he braced himself. It made everything constrict for a moment,
and then he was sliding down, Niou's cock pushing into him and it was the
strangest sensation, heat and slickness and pleasure all at once. It felt like
Sanada was opening around him, slowly admitting Niou's cock and god it was way
too good. Niou clutched at Sanada's thighs, not sure if he wanted Sanada to
speed up or slow down.
Sanada stopped -- not quite all the way down, and sucked in a huge breath, his
expression focused. He looked like he was frowning, but then, he often did.
"You okay?" asked Niou, through a mouthful of gritted teeth.
"Yes," Sanada grunted, and everything constricted again for a moment -- Niou
winced, that was too tight for pleasure -- and then he very abruptly slid a
little further and Niou could feel the difference; it felt like he was as deep
inside as he could actually get now. Sanada paled, and looked as though that
sudden movement hadn't been in the plan at all.
"Shit," Niou hissed, sympathy warring with arousal. "Shit, are you okay?"
"Fine," Sanada said, nearly grumpy-sounding with it, and he took another breath
and then wriggled. "You feel weird."
"You feel great," said Niou, and he forced himself to let go of Sanada's
thighs. "If you need to stop--"
Sanada scowled, and then he rocked his hips forwards gently, sending a ripple
of sensation down Niou's cock and straight up his spinal column.
Niou nearly bit his tongue.
Sanada did it again, and then he shifted a bit awkwardly, and leant forward and
actually slid partway off Niou before reseating himself. Niou held his breath,
counting frantically to try and calm down a bit; shit, shit, no wonder people
always joked about not lasting long. Much more of this and he'd be too far gone
to care about self-control.
"Kiss me," Sanada said, his face serious, leaning down.
Niou had to prop himself up to reach Sanada's mouth, but it was totally worth
it; Sanada looked fucking beautiful like this, like some musclebound warrior
had gone seven rounds in sweaty mortal combat and then had decided to descend
on Niou's extremely grateful cock. Sanada was the most solid, present person
Niou'd ever known, but like this he looked godly. Kissing, however, just added
to the unreal feeling; his thinking was all fogged up by hormones and instinct
and -- shit, he needed to touch Sanada properly, and he couldn't reach him like
this.
He struggled up further, and after a moment of confusion where Sanada nearly
slid off him accidentally, Niou managed to manoeuvre them so that he was
sitting up and Sanada was sort of wedged into his lap, leaning back on Niou's
thighs for support, one arm hooked around Niou's shoulder. That brought Sanada
within much easier kissing distance, and meant Niou could run his hands over
Sanada's chest and shoulders too.
"Fuck," Niou rasped. "Do you -- you're gorgeous, you know that?"
Sanada growled a faintly negative noise in response, and rolled his hips into
Niou.
"You are," Niou murmured, lowering his voice and leaning in close, pushing up
every time Sanada rocked down onto him. "Nn, fuck, I sometimes get hard just
watching you sometimes, knowing you're mine. All this muscle, all this
strength, and nnn, so poised too."
Shit. Sanada kept shuddering with every word in his ear, it was addictive.
"Your back and your ass and your arms, ugh. Used to peek at you in the showers,
even before. You're fucking perfect, I swear, nobody should look this good."
Sanada ground into him, found his mouth again, and sped up the motion of his
hips urgently, grinding against Niou as if wishing Niou could be even deeper
inside him.
"I'm gonna get you off," Niou said, when Sanada broke off the kiss, sliding his
hand down between them. "Wanna make you feel good."
Sanada made another growling sort of noise, and then buried his face in Niou's
shoulder. He was leaking pre-cum generously already, Niou discovered; that was
good, slippery was good. Niou let the broken little gasps Sanada was making
guide him; faster and tighter than he'd use for himself, in shorter harder
movements that matched with the way Sanada's hips were moving on him, and he
let his hips move with them too, unable to resist it any longer.
And then Sanada tipped his head back, locked his hips in place and gasped, and
he came in a series of little floods over Niou's hand. Niou was too far gone to
stop himself thrusting now, and combined with the way Sanada clenched around
him and the astonishing visual of Sanada flushed pink with desire and
satiation, it took a matter of seconds for it to all be too overwhelming for
him to control. He came, alarmingly noisy to his own ears, gripping Sanada's
thighs hard.
Sanada slumped forward onto him, his breathing harsh in Niou's ear, and
suddenly feeling a lot heavier than he had before.
"Hnn," Niou murmured once his own heartrate had slowed a bit, and he pressed
his lips to Sanada's collarbone affectionately. "You okay there?"
Sanada laughed, and wow that felt odd, the sound vibrating down through their
joined bodies. "Very."
"Yeah?" Niou stroked the back of his hand down Sanada's arm, over the firm
muscle of his bicep. "I'm gonna have to ask you to move, though, sorry."
Sanada made a grumbling noise, and they disentangled themselves carefully and
cleaned up; Sanada had wipes on his nightstand, thank god, and Niou wrapped the
condom in about seven layers of tissue in the hope that nobody would dig
through Sanada's wastebasket and find it. And then, to Niou's mild surprise,
Sanada stretched out again on the futon and pulled Niou down to lie next to
him, face-to-face.
"Thank you," he said, looking all serious again.
Niou blinked, then punched him gently in the arm. "Shut up, don't be grateful,
it was awesome for me too."
Sanada put his hand on Niou's hip. "I mean it."
Niou stared at Sanada for a moment. It'd been so easy, in the middle of it all,
to say how he felt, whatever came to mind. And now, all he could think to say
were stupid cliches, things that would trivialise what they'd just done. To
hell with that, he thought, suddenly; this should be a big deal, and Sanada was
allowed to be serious about it. Within reason.
"Hey," he said, catching at Sanada's hand. "I'm, uh, honoured, you know."
Sanada's face took on a really soft, pleased sort of expression. "As am I."
"I meant what I said, too. I perve on you so much when you're not looking."
"Hnnf." Sanada's cheeks pinked a little, but he didn't look particularly
embarrassed. "Good."
Niou lifted Sanada's hand to his mouth, and kissed it gently.
"You could -- do you want to stay here tonight?" asked Sanada, almost casually,
as if he asked Niou to stay over all the time and it wasn't a completely new
and startling development. "I get up early, but you don't have to."
"Seriously? Won't your parents mind?"
Sanada chuckled, as he put his hand back on Niou's hip. "No. But I'm not
telling them where you're sleeping."
"Well, no, but--" and Niou stopped, and thought about that sentence again. "If
you snore, I'll smack you."
"Is that a yes?"
"Only 'cause I'm hoping you might put out again," Niou said, and smiled, just
in case Sanada thought he was serious.
Sanada flushed faintly, but to Niou's delight he also smiled back slyly. "I
could be convinced."
Niou stretched out, grinning. Well then. Here was to an evening of convincing,
then. And many more in the future.
End Notes
     (Niou's wrong, by the way, about the historical stuff and submission
     and so on. But sometimes he's allowed to be wrong.)
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