Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/641683.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Katekyou_Hitman_Reborn!
  Relationship:
      Sawada_Tsunayoshi/Yamamoto_Takeshi
  Character:
      Yamamoto_Takeshi, Sawada_Tsunayoshi
  Additional Tags:
      Ten_Year_Bazooka, Dubious_Consent, Fingerfucking, Overstimulation,
      Katekyou_Hitman_Reborn!_Kink_Meme
  Stats:
      Published: 2013-01-16 Words: 1686
****** Lows and Highs of the Countdown ******
by blueberry
Summary
     Those times when the Ten Year Bazooka drops you straight on top of a
     naked best friend. (TYL!Yamamoto/Tsuna.)
Notes
     Request: TYL!Yamamoto molesting Tsuna. You can involve more
     characters if you want, like TYL!Gokudera, but a) Tsuna is the only
     non-TYL character and b) MINIMAL or even better, NO ANGST.
     Alternative TYL or EIGHT YEARS LATER or however you want it, the
     basic premise is:
     Tsuna, TYL!Yamamoto, and possibly other TYL!characters are having
     sex. Sex which involves Yamamoto (and any others involved) molesting
     Tsuna in a fun, sexy way.
      
     These are the longest five minutes since Dragonball Z...

"Oops."
That was the first thing Yamamoto of ten years later said. He was naked, Tsuna
was in his lap, and his hand was on Tsuna's butt. And that was what he said.
Tsuna would have freaked out, but that got him to drop his head and groan
instead.
Yamamoto stopped blinking foolishly and said, "Ten Year Bazooka, huh?"
"Yeah," Tsuna said, relieved in part of himself that the older Yamamoto had
realised that Lambo's weapon wasn't a toy. Then he whined, "Your hand..."
There were a few hurried moments of movement, with Tsuna diving to the opposite
end of the bed and trying desperately not to see all that skin centimetres away
from him, and Yamamoto yanking the bed sheets over himself. "If you have a pin,
I could do a toga," he offered with a lopsided grin, and Tsuna laughed at the
stupid joke, borderline hysterical.
"This is the future?! But - but - girls! Kyoko-chan!" Tsuna shook his head and
shut his eyes.
"Now, now, don't get excited," said Yamamoto, putting an arm around his
shoulders - but he was naked! Tsuna jumped to his feet. He looked wildly around
the room. There were clothes on the floor, including underwear. He could
imagine himself in a pair of boxers just like those when he was ten years
older. "Is my future self naked ten years ago?!" Tsuna yelled.
Yamamoto burst out laughing. "You're going to be so embarrassed when you come
back! Where were you when the bazooka went off?"
"I was in my room. At least it was only Lambo and I-Pin in there - GEEHH.
Lambo's going to tell everyone about this! I-Pin's going to blow up! What on
earth was the future me thinking?"
"Tsuna!" Yamamoto said, and Tsuna felt arms going around him, pulling him to
sit down. "Breathe!"
"But you're naked!" Tsuna wailed.
"I've got the sheet on," Yamamoto said. "Anyway, there's no need to get so
freaked out. I like to think I'm pretty good-looking."
That got Tsuna to take a deep breath so he could yell, "That's not the point!"
"You need to get used to the idea," said Yamamoto, gently pulling his hands out
of his hair. "I'll help."
"How can I get used to this?" He was so aggravated that he dared to look at the
man sitting so close beside him. Yamamoto was looking back at him, and there
was something about it that made Tsuna's stomach lurch. He opened his mouth to
protest - but what could he say? Nothing was happening. He hadn't looked at
Yamamoto properly since arriving, and now he wondered where the scar on
Yamamoto's chin had come from.
It stretched a little as Yamamoto smiled. "Like this," he said. He put a hand
on Tsuna's shoulder - and then slid it to the centre of his chest and pushed
him down. Yamamoto's closeness became different: not comfortable like it
normally was, and though it wasn't threatening either it made Tsuna's heartbeat
go into overdrive.
"Don't look like that," Yamamoto said, looming over him and looking almost
hurt. "I wish you wouldn't make that kind of face."
"What are you doing?!"
"I have to convince you right now it's not a bad idea to get together with me,"
he said cheerfully. "It's a good future. I promise."
His hand felt huge as it slid up underneath Tsuna's shirt, spanning from above
his hipbone to halfway up his ribs. Huge and hot and strong, steady.
"Yamamoto," Tsuna said, other words vanishing in shock.
"Yeah. It's still me. You know I'd never hurt you, right?"
"But - but--" Tsuna bit his lip hard and wanted to stay scared, but Yamamoto
looked at him in a way that was inexpressibly fond. The hand slid up to nipples
that were already hard and tingling, and tugged and squeezed at them so that
Tsuna squirmed.
He watched a grin spread over Yamamoto's face, and then he ducked down and
pushed up Tsuna's shirt with his hand and nose and sucked at his nipples, one
after the other. Tsuna yelled with each suck and then lay there, panting for
breath and feeling himself get hard.
"So little time," Yamamoto sighed. Tsuna looked up at a clattering sound from
the head of the bed - Yamamoto was feeling around for something on the bedside
table. He saw him grab a tube of what might be ointment, and then Yamamoto
began to unbutton Tsuna's shorts. "What!" Tsuna said out of reflex, and
Yamamoto laughed.
"It'll feel good." He looked so familiar with that reassuring smile; almost
exactly like the young Yamamoto.
He stroked Tsuna through his underwear, once, and Tsuna found he couldn't say
anything against that feeling. Especially not when Yamamoto was looking at him
like that. Yamamoto's knuckles stroked his length again. Tsuna really couldn't
look away from him. "Where'd that scar come from?" he asked, feeling inane but
worried by the one out-of-place thing on Yamamoto's face.
"Doesn't matter," Yamamoto said. "There's not much time left!" He held Tsuna to
his chest and fell back so that Tsuna was on top of him. "Get those shorts
down, huh?" said Yamamoto, fiddling with that tube. After a moment's hesitance,
Tsuna did as he was asked, and Yamamoto smiled at him like that again.
"It'll feel a little weird," he said as Tsuna tugged at his shorts, but even
that wasn't too worrying as air touched his half-hard cock. He ought to be
embarrassed, but Yamamoto was already naked, and he obviously wanted this.
Probably - probably he was even used to seeing Tsuna naked. The thought had
become sort of freeing. "Mind if I get the sheet out the way?" Yamamoto asked;
he shook his head, and then he was settling against the soft skin of Yamamoto's
belly, moaning. His face burned with a blush, but Yamamoto grinned at him.
"A minute left, maybe..." Yamamoto said. "Let me do this, okay?" His hand
rested on Tsuna's butt, cold and slippery from the stuff in the tube, and then
moved to the top of the crease between them. Tsuna shivered violently. The hand
moved down, between his thighs, but it fired his nerves instead of making him
nervous. "Lie down." Yamamoto's other hand pressed against his shoulder blades
as gently as the suggestion, and Tsuna moved until he lay with his cheek
pressed to Yamamoto's shoulder and clenching his fists in the sheets.
"Don't worry. It's okay," Yamamoto murmured in a deep voice that Tsuna suddenly
realised was gorgeous, sending a shock right down to his cock just as a finger
slid into him. Tsuna screamed, short and sharp.
"You have to relax," Yamamoto said. "There's not much time, and it'll be better
once you relax."
Tsuna gave up. It was weird, and he'd never imagined anything like this
happening to him - but it was still Yamamoto, and he said that it was all
right.
He sprawled on top of Yamamoto with his legs on either side, one dangling off
the narrow bed, and rubbed his cock against Yamamoto in shallow thrusts. He
couldn't move much as he weathered the feeling of Yamamoto's long, thick
fingers working their way into him quickly, just this side of hurting - but it
was still okay, so new and intense, the odd edges of the sensation soothed away
by Yamamoto's other hand stroking down his spine. Then Yamamoto's fingertips
began to press something that made Tsuna gasp, making his toes numb and his
cock hard and his stomach tighten with each touch.
Yamamoto's voice was a constant, reassuring rumble under him. "I know it feels
good. It'll feel good later, too, ten years later - you'll tell me you love it.
 ....  Don't worry, I won't stop.  ....  I can't go harder. I don't want to
hurt you. Isn't it good enough like this?  ....  Oh yeah? That good? I'm glad."
Yamamoto's chest was wet where his mouth rested, and Tsuna realised that he'd
been speaking; everything Yamamoto said was a reply to him. He couldn't think
enough to listen to his own words. He let go of the sheets and clamped his
hands on to Yamamoto's shoulders, using his body as an anchor. A sigh rocked
him up and down on Yamamoto's chest.
"Love you," Yamamoto said. "Don't forget that, okay? I think time's about up."
Tsuna looked up, horrified at the thought - he saw golden-brown eyes and a
pleased smile, and then there was smoke.
In his own time again, he was pitching to the floor, and he bit his tongue as
he hit. "OWW!!" He dragged his legs off a chair to curl up on the floor.
Pulling his legs up made weird twinges in his thighs, and he gasped. If only he
could have stayed back there, just one more minute ... Tsuna wrapped a hand
around his cock and jerked off hard, imagining that solid warmth and those
fingers inside him as the tightness in his belly flooded out.
When he regained his breath he put his clothes in order, and sat up and looked
around. His future self must have been sitting on the chair, and Tsuna hadn't
transitioned well into that position since he had been lying down when he came
back. And his duvet was gone! His future self had probably wrapped it around
himself, which meant he wasn't too perverted when he was older, but it did
leave some explaining to do to his mother. Tsuna sighed - and then sighed
again, deeply, realising how strangely tired he felt. But ... kind of in a good
way...
Before he had to think about it too much, he stood. The chair was by the
window, so just for something to keep his mind occupied, he went to see what
the ten-years-older Tsuna had been looking at.
The kids, Gokudera, and Yamamoto, running around the yard. Gokudera saw his
head by the window and waved. Gokudera's mouth moved: Tenth!
He watched as Yamamoto turned to the window, rearranging Lambo more comfortably
on his head. He smiled up at Tsuna - maybe the same smile as always; but now
there was something newly familiar in it. Something worth waiting for.
Please drop_by_the_archive_and_comment to let the author know if you enjoyed
their work!