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The best part about living in the dorms, Kaminari thought, was that his boyfriend also lived in the dorms. He grinned as Shinsou opened the door. Shinsou gave him a soft grin back and stepped aside to let him in.
As soon as the door had closed, Kaminari was on him, kissing him and Shinsou eagerly reciprocated. Kaminari let himself be lead, pushed onto the bed. His boyfriend began to strip with a smirk and he watched attentively.
“Control?” Kaminari asked, awkwardly stripping himself from his place on the bed.
“Nah," Shinsou replied, "Electricity today.” Climbing on top and straddling him, Kaminari groaned as Shinsou ground their hips together, both of them quickly growing excited.
“Lube?” Kaminari questioned with a laugh as Shinsou pulled a bottle out from his bedside drawer, doing his best to keep grinding as he did so. He hummed in confirmation.
Kaminari started to move so Shinsou could prep him, but Shinsou held him down, instead smirking and reaching around to his own hole. Kaminari grew fully hard with a blush.
Shinsou leaned down to slowly kiss Kaminari as he fingered himself. He felt Kaminari reach up and grab his ass, giving it a squeeze before adventuring to help prep Shinsou, finger questioningly poking at his occupied hole. Shinsou nodded and moaned at the feeling of his boyfriend's fingers entering him alongside his own.
As much as he would've liked to keep doing this, Shinsou felt ready for more and pulled them out, sitting up. He lifted himself and Kaminari grabbed his dick, lubing it up and lining it up with Shinsou.
“Do it,” Shinsou told Kaminari, who grinned. Shinsou quickly sat himself down, dick sliding easily into his ass, while Kaminari sent a small shock through them. Shinsou dug his nails into Kaminari's chest as he stiffened, dick already dripping precome at the feeling.
His whole body relaxed and, after taking a moment to collect himself, Shinsou began moving, bouncing on Kaminari's dick casually as he looked for his own sweet spot. Kaminari gripped at his hips, sending small jolts through his fingertips that would sometimes make Shinsou stutter.
“Oh fuck,” Shinsou moaned as he got his prostate dead on. He ground against it for a moment, Kaminari moaning at the feeling.
Shinsou raised up so he was almost off of Kaminari, slamming back down, setting a fairly fast and rough pace. Kaminari kept a steady stream of electricity coursing through his dick, resulting in Shinsou having an electric feeling in more than one way every time he hit his prostate.
“I'm.. aah.. not gonna last,” Kaminari warned. Shinsou started going even faster and didn't even feel his boyfriend cum inside of him because of a bigger shock that forced his own orgasm, spilling between them.
Shinsou collapsed onto Kaminari, still twitching slightly and feeling the cum dripping out of him. Kaminari hugged him close as they panted. Eventually he flipped them over, knowing Shinsou's muscles would still be a bit weak from the shock. He kissed him gently and lovingly and Shinsou hummed.
They laid cuddling for a few hours before Shinsou pushed Kaminari playfully off the bed to get them cleaned up.