It happens gradually. Their tiny dorm means it makes more sense to have one bed than two & as twins they’re used to sharing.
If Shiro wakes up with Kuro wrapped around him, well it’s nice sometimes to be held.
Shiro always tries to move away but Kuros arms will tighten and a sleep murmured ‘just a little’ gets Shiro to stay. After Kuro comes
-
It keeps happening. Not every day, not even a lot. Kuro flirts and takes women out, and according to their new college friends, is a hot commodity.
And then there’s the morning where Shiro wakes to Kuro pushing down Shiro’s boxers.
Shiro flushes hot, turned on and ashamed. “Press your thighs together.”
He shouldn’t, but he does.
But Shiro is, & he can’t help what this does to him. Kuro fucks his thighs, moving hot and fast against him, and Shiro can barely hold in his own gasps.
When his brother
Months later Kuro takes him almost nightly, and sometimes doesn’t even wait until the morning. He gets
This is relief for Kuro, but it’ll be totally different if Shiro gets off. It’ll be something bad & dirty & /wrong/. He can’t and he can’t—
And then Kuros finger breaches him.
Shiro wants his brother to fuck him. Then, in dawning horror, he realizes he’s spoken it aloud.
/end
Kuro swears, but the fury or disgust Shiro expects doesn’t appear. Instead there’s a click of lube from nowhere and two fingers pushing into Shiro’s hole.
“I knew you wanted it,” Kuro says as he fingers Shiro open. The other hand reaches around and touches Shiro’s mess, smearing it lewdly on his already rallying cock.
Shiro gasps as something electric
“No,” he pleads into the sheets. “I don’t— I haven’t,” he can barely get the words out.
“It’s okay,” Kuro says, as gently as he does after one of Shiro’s nightmares.
Then Kuro is pulling his fingers out and his teeth are biting into Shiro’s shoulder. Shiro whines, electric, and arches. He begs with
Not something. Someone. His brother.
It’s so wrong, but he can’t help how his cock is full and heavy once more, how his mouth opens and he pants, “please, please!”
Shiro’s on fire, he has to close his eyes against it. It’s Kuro, his brother, his everything. The cock presses in and Shiro /moans/.
Shiro’s lost all control. Kuro fucks him full and it hurts, and Shiro just whines and writhes
“So good, fuck I’ve been dreaming of this. Your tight little ass. You parade around here in those
Shiro’s nearing his edge, too fast yet again but he can’t hold on to anything with Kuro. Kuro is already under all his barriers, and every word just ruins Shiro.
Kuro curses and the rhythm speeds up, Kuro dragging him back on his cock. “Yeah, yeah. Come on. Come for me little brother, come on my cock.”
And Shiro, powerless, does just that. For a second time he comes without a hand on him, driven by the battering
“Just for me,” Kuro gasps.
“No one else,” Shiro confesses as he comes. He suddenly wants Kuro to finish,
Kuro makes a punched sound when he understands.
“Kuro, fill me, please, I want it— I want—“
Then Kuros weight is shifting and he’s grunting, pushing all the
Shiro listens to every breath and sound of pleasure, feels every pulse of his brothers cock as it comes in his hole.
It’s wrong, but nothing has ever felt this good. Even when Kuro pulls out and the wetness immediately
“What a pretty sight,” Kuro says, and his finger is scooping the wetness up and pushing it back into Shiro’s hole. “Maybe this is how you should greet me when i come home
Shiro doesn’t know what to say. His face is still red hot. He settles on just his brothers name.
“Yeah,” Kuro says, like that answers every unspoken thing. “There’s no going back now, huh?”
There’s a moment of silence and then Shiro gathers his bravery. “I don’t want to,” he says. It’s a shameful truth, but /fuck/ he wants his brother. Wants him in ways he shouldn’t.
Shiro gets his brothers hand, and curls it in his own. “Good,” he says, in agreement.
/end