
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/1140865.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M, Multi
  Fandom:
      Free!
  Relationship:
      Hazuki_Nagisa/Ryuugazaki_Rei, Matsuoka_Rin/Nitori_Aiichirou, Hazuki
      Nagisa/Ryuugazaki_Rei/Matsuoka_Rin/Nitori_Aiichirou
  Character:
      Hazuki_Nagisa, Ryuugazaki_Rei, Matsuoka_Rin, Nitori_Aiichirou
  Additional Tags:
      Foursome, Foursome_-_M/M/M/M, BDSM, Bondage, Collars, Dom/sub, Vibrators,
      Candles, Anal_Sex, Free!_Kink_Meme, PWP
  Series:
      Part 3 of Swim_Shota_Ships
  Stats:
      Published: 2014-01-18 Words: 1803
****** The Experiment or The Show Part III ******
by EmBethMarsh
Summary
     Another fill for the kink meme and my favourite foursome! Nagisa
     convinces Nitori that surprising their boyfriends with a bondage
     session can only work in their favour. He's right.
“I-I'm not sure, Hazuki-kun.” Nitori shuffles uncomfortably, avoiding eye-
contact with the manipulative blonde,
“Nagisa.” He corrects. The Iwatobi student has been at Nitori and Rin's room a
mere five minutes before suggesting yet another sordid activity for the two and
their respective boyfriends, “Think about it, Ai-chan, if we do this, it's a
step towards that rough fuck with Rin-chan you want.” The usual pleasant tone
of Nagisa seems somewhat morbid when amalgamated with the sleazy smile he's
currently wearing,
“Nagisa-kun!” The Samezuka student interjects, cheeks a burning red. Despite
their previous sexual encounters, Nitori still suffers embarrassment from
Nagisa's open conversations about private matters.
“-chan.” Another correction since they're definitely close enough to drop the
more formal honorifics by now, “Rin-chan'll want to get you back.” A singsong
tone this time for yet more implicated, seedy rendezvous.
Nitori glances up, meeting the pink eyes for the first time since Nagisa
practically forced his way in. Just the mere thought of Matsuoka-senpai
pounding him into the mattress has Nitori at half-mast already. Maybe Nagisa's
plan isn't terrible, even if the blonde's own motives are unknown.
The silver-haired teen swallows before giving a quick nod. Nagisa hums
approvingly before his devious smile grows. Perfect.
Nitori had been worried about how Nagisa would convince Rin and Rei to take
part. Actually, he wasn't worried about Rei at all, just Rin. And, as the
blonde covertly slips a pair of handcuffs over one of Rin's wrists and Rei's,
his anxiety doesn't cease. That doesn't stop a sense of excitement pooling in
the pit of his stomach, however.
They're in the locker room after an informal joint swimming practise. Informal
in that it had all been a lie in order to lure Rin and Rei here and get them to
strip down to just their jammers. (In all honesty, Nagisa didn't think anyone
would turn up to mysterious late night training session...) Oh, an informal in
the sense that there hadn't been any swimming or training of any sort and the
only members invited were the four present. Woops.
Another click of handcuffs and Rei is secured to the bench. Of course, the two
are now aware their boyfriends have ulterior motives but whilst handcuffed to
both each other and the wooden bench, neither can do much,
“Nagisa-kun!” Rei whines as if this happens a lot (and, honestly, it probably
does). The echoes of chains rattling in dissent backs the bespectacled boy up.
Nagisa just giggles cupping Rei's chin. The two captives are sitting so, for
once, the blonde towers over the bluenette,
“What's wrong, Rei-chan? You said you liked this game.” Nagisa pouts; it's well
rehearsed and Nagisa's greatest weapon over his boyfriend, “Having more
players...” The pink eyes flick to Rin and back again to Rei, “...can only make
it more fun.” His tone is down to a dull whisper, tickling Rei's ear. The other
two occupants of the room can still hear but it succeeds in colouring Rei's
cheeks a perfect red.
Obviously, Rin was never going to stay quiet about this. Once Nagisa and Rei
are done talking, the latter supposedly convinced this “game” was a good idea,
the chains rattle louder than before. He's in the same position as Rei,
handcuffed to the bench as well as the other boy,
“Nitori.” It's a low growl that makes the silver-haired boy flinch; he knows
that Rin's pissed when he uses 'Nitori' over 'Ai', “Unlock the cuffs. Now.”
Nitori shakes his head, looking at Nagisa for back-up,
“Ai-chan, you should go get our bag.” Nagisa suggests and Nitori nods and
scatters away to his dorm room where to retrieve their bag of supplies.
“Oi, Nagisa, let me go.” Rin growls again and the blonde smiles but deftly
shakes his head,
“No can do, Rin-chan. Nitori's really looking forward to this. You want to make
him happy, right?” There's a disgruntled noise but ultimately, Rin submits to
Nagisa's words, “Don't forget, you can always get him back too.” He adds with a
wink.
When Nitori re-emerges, he's not sure how Nagisa's convinced Senpai, but it's
worked. The bag drops with a thud and it's not long before Nagisa's rummaging
through it. He pulls out an item and holds it up to Rei,
“It's your favourite Rei-chan.” The blonde chimes, and Rei blushes at the sight
of the black, leather collar. There's an uncomfortable shuffle as blood rushes
to his dick and his jammers get too tight, “Do you want to wear it?” There's a
slight squeak and a nod from the bluenette; he knows this routine all too well,
“How should you answer, Rei-chan?”
“Yes, Hazuki-sama.” He mutters, his violet eyes trying to avoid any contact
with Nitori or Rin.
The leather is cool around his neck as Nagisa buckles it tight enough so that
there's pressure on Rei's throat but so he can still breath. Once it's done,
Nagisa nods at Nitori who scrambles to the bag with a noise of realisation.
An identical collar is held up to Rin who looks as if he might actually rip it
in two as Nitori brings it closer to him. He manages to keep his mouth shut as
it's fastened around him but his expression tells a different story; he's
bearing with it to make Nitori happy,
“Rin-chan should thank Nitori-sama.” The short-tempered redhead nearly swears
at the blonde's suggestion,
“Thank you, Nitori-sama.” It's through gritted teeth but at least he's done it.
A few minutes later and the two bound boys are naked, their hands now shackled
behind their backs. Rei's on his knees in front of Rin who's on the bench. The
former is already hard and dripping pre-cum; Nagisa had trained him well. The
other, meanwhile, is not quite as enthused, but, of course, Nagisa predicted
that,
“Okay, Rei-chan, you make sure Rin-chan gets hard and me and Nitori-sama will
let you have some fun too.”
“Yes, Hazuki-sama.” There's a soft pat on his head which Rei finds comforting
as he positions himself between Rin's legs. There's a moment of awkward eye-
contact as he apprehensively licks Rin's semi.
Nagisa and Nitori, meanwhile, look through the bag, having some kind of
discussion about the toys that the other two are too pre-occupied to listen to.
Nagisa explains some of the implements that Nitori is unfamiliar with. The
latter still can't help but blush at the sight, but it's not as much as
earlier; he's getting used to the situation.
Rei's tongue remains apprehensive since his instructions were to get Rin hard
and nothing more. Rin's frustration increases and results in an audible groan.
Nitori and Nagisa both look up,
“What's wrong, Rin-chan?” The redhead says nothing but aggressively stares at
Rei,
“Ah!” Nitori quickly stands up, “Rin-senpai doesn't like being teased! You
should use your whole mouth, Ryugazaki-kun.” He explains,
“Rei.” Nagisa corrects and stands up too, next to Nitori,
“Sorry, Nitori-sama, I was only told to get Rin-san erect.” Rei explained,
pulling away; he had indeed done the job specified to him,
“Are you blaming my instructions?” Nagisa asks, some menace to his tone as he
tightly grips Rei's hair,
“No! No, Hazuki-sama! It was my mistake!” There's an urgency as if he knows
what might happen if Nagisa thinks otherwise,
“Sh-should we punish him, Hazuki-sama?” Nitori questions, still shyness behind
his tone but his confidence is clearly growing. Nagisa smiles at his almost
protégé and Rei moans at the mere thought of punishment.
Rei finds himself bound to the bench again. This time he's laid flat against it
on his back, his hands meeting each other under the bench, tied with a strong
rope now. Nitori's stood over him with a lit candle now.
The bench creaks every time Rei writhes as hot wax drops over his torso. It's
accompanied by groans, somewhere in between pain and pleasure, every time the
wax hits his nipples.
There's not just his moans, Nagisa's moaning too, he's balls deep in Rei; the
blonde cannot resist his boyfriend's pained-pleasure wriggles and the wanton
noises that are pulled out of him.
Rin hasn't been left out either. He's bound, almost in a symmetrical way to Rei
but with the addition to several small wired vibrators. Two are taped to his
nipples, one's attached to his cock head and the remaining three vibrating away
inside him. Much to his dismay, a band was around his cock, matching the collar
around his neck.
When the candle becomes nothing but a stump and Rei's whole torso is covered in
the red wax, Nitori heads over to Rin. Red eyes are watering and his cock has
turned an ugly purple,
“Ai...Nitori-sama, let me cum, please!” Red eyes scrunch closed at the sound of
his own pathetic tone, he thinks he might even prefer Rei's position to his
own,
“Me first, Rin.” Nitori states, he's still not as confident as Nagisa but he's
certainly learning. The silver-haired boy positions himself between Rin's legs,
not bothering to remove the vibrators or turn them off for that matter. No
preparation is needed as Nitori did it earlier to accommodate the toys.
Only a few thrusts later and realises he's close. Nitori pulls out and removes
the leather band from Rin's cock before grabbing both his own and Rin's manhood
and stroking them together at a fast-pace. The two finish together with a small
cry from Nitori and a grunt from Rin.
Nagisa doesn't pull out and cums inside Rei,
“Can I cum, please, Hazuki-sama?” He pleads, trying the pouting thing out for
himself but failing in a beautiful way that only he could manage; it sounds
more pathetic but Nagisa is a compassionate dom and agrees,
“You've earned it.” He whispers and that pushes Rei over the edge.
The vibrators are removed and placed back into the bag along with the bondage
implements and collars before Nagisa yawns and nuzzles up to Rei. The
bespectacled boy is busy cleaning himself and getting dressed but finds Nagisa
fairly comforting.
“D-did you have fun, Rin-senpai?” The silver-haired swimmer mumbles, awkwardly
worrying his lip; his confidence having been an affect of the moment. Rin
flashes a toothy grin and zips up his jacket,
“I think I'll have more fun when you receive the same treatment.” Nitori
unwittingly moans at the thought as Rin picks up the bag of toys, “Oi, Nagisa,
we're borrowing these for a while.” The bag is thrown over his shoulder and he
grabs Nitori's hand, pulling him out of the changing room,
“Good night, Nagisa-chan, Rei-chan!” Nitori manages to call to the remaining
couple.
Rei finishes changing and returns to where Nagisa is sat on the bench. The
blonde, however, had fallen asleep at some point. Rei sighs but dutifully lifts
his boyfriend onto his back and heads to the train station.
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