
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/7927192.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Super_Lovers
  Relationship:
      Kaidou_Shima/Kaidou_Ren, Shima/Ren
  Character:
      Kaidou_Shima, Kaidou_Ren, Kaidou_Haru
  Additional Tags:
      Rare_Pairings, rarepair, Rare_Ship, Comedy, Shower_Sex, Size_Difference,
      Teasing, dubcon, dub-con, Power_Dynamics, Power_Imbalance, power
      difference, Adopted_Sibling_Relationship, Sibling_Incest, Humor,
      crackship, Dubious_Consent, Implied/Referenced_Dubious_Consent
  Stats:
      Published: 2016-09-01 Words: 1369
****** I Understand Why Brother Can't Resist Him ******
by terrifying_pearl
Summary
     Haru is always so close to Ren, and admittedly, Shima understands.
     One day, he finally gets an opportunity. He doesn't fail to take
     it...
Shima eyed Ren with cautious eyes from across the table. They were alone, Aki
and Haru having been called to the cafe, and Shima coming home from school
late. As such, Ren had heated up dinner for the slightly older boy and they
were eating together.
The two really didn't talk much, so they weren't exactly close. Haru was always
so close and protective over Ren, it was hard to even try to talk to him,
anyway. He and Aki had talked /about/ Ren many times though, and why their
older brother couldn't resist him. It was hard for them to, too.
Aki understood the appeal the minute he saw Ren. And god it fucked him up. It
made him angry, he didn't want to have to see the object of desire often.
That's what had really gotten the conversation started about Ren between the
twins. Aki needed to vent about what he felt were destructive thoughts, and his
twin had to listen. Couldn't escape it.
But the more Aki talked about it, the more Shima understood it. The more he
felt the same way. Soon, it was a household of people who were doggedly
watching Ren's every move. Haru didn't know that, though, and the twins
intended on keeping it that way.
Haru had nearly walked in on Shima two or three times getting off to pictures
of Ren. The intrusive older brother never knocked, but Shima had leaned to
anticipate his approach and would quickly gather himself and hide the images
before the older was able to see. The system worked nicely. Aki did the same,
Shima knew.
Eating reheated dinner with the boy he'd fantasized about was not how Shima had
expected his night to go. He had planned on eating dinner with everyone, but
being alone with Ren was an interesting surprise. He wouldn't complain about
it, not at all. The boy was cute, delicate. Shima wondered how easy he'd be to
physically break.
It had been a few times that Shima had heard a small moan come out of those
soft lips of Ren's from Haru's room. It was wrong to listen in, of course, but
they Haru made it so blatantly obvious what his ultimate goal was and Shima was
interested to see if he would achieve it yet. As far as the younger knew, he
hadn't yet. That left an opening for the boy with glasses to give it a shot
himself.
"Oi, Ren..." Shima broke the silence at the dinner table. He cleared his throat
when he saw the youngest look up, running a hand through his hair. "So
Haru...taught you a lot of things, huh?"
"Mhm. How to hold chopsticks, that I should sleep in a bed--"
"Has he taught you anything...sexual? Just, because children your age are
thinking about those kinds of things."
"We almost did something--once. You saw. Remember?"
"Yes, I do." He couldn't get the image out of his mind, actually. "Did you
enjoy what happened?"
"It wasn't much but...as long as it's with Haru, I enjoy it."
"Just with Haru?"
"Just with Haru."
"You haven't ever felt that way with anyone else?"
"No--oh," Ren looked down. "I got some juice on my shirt..."
"You should take a shower, before Haru comes back. I'm sure he'd be happy to
know you did it without him having to tell you."
Ren seemed to take this in consideration for a moment before nodding and taking
his plate into the kitchen, putting it in the sink. Shima watched his every
move. The boy didn't notice, and walked to the bathroom to shower. As soon as
he heard the water running, Shima knew it was time to make his move.
Standing up, the college student took off his glasses and set them on the
table. Shima walked towards the bathroom slowly, not wanting to make too much
noise and alert the other. He had to be careful and precise. As he entered the
foggy bathroom and shut the door, he felt his heart rate pick up. Being so
close to the short boy made his body shudder with anticipation.
Shima removed his clothing before sliding open the shower door and getting in
with Ren. As expected, the boy was confused and was about to say something but
Shima cut him off with a kiss. He knew of Ren's antics and kept his tongue in
his own mouth and pressed his body against the smaller boy's so that he
couldn't kick him. He used one of his hands to pin both of Ren's above his
head.
The water made their bodies slick against each other, upping Shima's need
further. Ren was conflicted. He was visibly turned on--but he didn't want to
be. He was supposed to be with Haru, and yet...
Shima broke the kiss and moved to Ren's neck, biting down softly and sucking as
he left a mark on his skin. Ren was biting his own lower lip, trying hard to
hold back any noises from coming out. He only wanted Haru to hear him like
this. Ren's face was as red as the strawberries he'd eaten that morning, it was
so embarrassing.
"I'm going to take you," Shima whispered in Ren's ear. "I'm going to prepare
you, and then I will take you."
Ren's eyes widened in surprise and he, albeit his heart telling him not to,
nodded in response to what the other had said. Shima smirked and nodded a
little, turning the other around to face the wall, running his hands over the
other's cute little ass.
"I've wanted to violate you for a little while now," Shima admitted. "Haru is
always all over you..."
Ren didn't reply to this, and Shima didn't really mind. Ren was cute enough.
The boy didn't understand much of the whole sexual thing, anyway, and the older
man was intent on educating him.
The college student allowed the water to run over his hand a little more before
inserting a finger into the boy, thrusting it slowly and allowing him to get
used to it. He noted that Ren still refused to make any noise aside from a
little sniffling because it hurt, and Shima knew that, thus why he was allowing
him time to get used to it. The sniffling didn't last very long.
As Shima inserted more fingers, Ren was panting a little. In a good way, the
older could assume. He saw that the other was getting a little weak at the
knees and knew it was time. Shima slicked his cock up a little, pressing
against the boy's entrance but not fully pushing in yet.
"You ready?"
Shima barely had time to ask. Ren pushed his hips back, finally releasing a
moan from his lips. This encouraged Shima further, and he was happy to respond
to Ren's act. Pressing himself in the boy, he pulled out and was quick to
insert himself again.
"Only Haru?" Shima asked again, smirking and licking his lips as he began to
fuck the boy nice and slow, almost teasingly slow.
Ren didn't reply to the taunt, only clenching his now unreleased hands and
moving his hips a little to match Shima's steady shoves. The man with glasses
actually laughed a little at the reaction and began to ram the boy against the
wall, something Ren didn't expect. The shorter boy let out a cry of surprise,
arching his back slightly and feeling the odd twisting in his stomach he'd felt
when Haru had gotten him off before.
"S-Shima I-"
"Already? You really should build up your stamina..." Shima clicked his tongue,
pushing deeper into the other.
The wolf boy bit one of his thumbs to keep himself quiet for the most part as
he came for the second time in his life, before releasing the finger and
panting heavily as his older brother continued to fuck him. It was all so
overwhelming and new.
Shima finished a while after, cumming deep inside of the other and leaning over
him, softly trying to catch his breath.
"Amazing...I'm proud of you, Ren, for taking all of that."
"...SHIIIIIIIIIIIIIIIIIIIIIIIIIIIMAAAAAAAAAAAAAAAAAAAAAAAAAAA!" Haru shouted,
banging on the door. "YOU'RE DEAD!"
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