Kiribaku Oneshots

Dumb Idea

Ok. Humor me on this one. It's really dumb, but I had the idea awhile ago and I have to see someone's reaction to it.
Smut warning: Switching Kiribaku

Bakugou was away in America for hero business. They had requested him to help out with a situation in the states. Kirishima misses him so much. He's been gone for about a month, and he'll be gone for at least two more! He can't take it! The bed feels so cold and empty without him. He misses his warmth, his touch, his kisses...and yes, ok, he misses his dick and ass. In the past month, they had had a little fun over the phone, and it helped a little, but not much. One night after giving him a goodnight/good morning call, he's scrolling through Instagram when he comes across one of those crafting videos where a couple will stick their entwined hands into a bucket of pink goo to make a mold so they can make a statue or something. At first he thinks it would be a fun thing for he and Katsuki to do together...then he gets an idea. He takes out his computer and searches for those bucket things on Amazon. After about an hour or so of searching, he orders three things that night and pays for faster shipping.

A couple days later, his package arrives. He had ordered one of those hand casting bucket kits, a liquid rubber molding kit, and...a sounding rod...this is going to be fun.
(Yes, he's doing exactly what you think he's doing.)
Luckily, today is his free day, so he gets started. The first thing he needs to do is get hard, so after setting everything up, he takes off his clothes, pulls out his phone, and goes into his photo album. He looks through his pictures until he finds a set of nudes his boyfriend had sent him. The pictures of Bakugou's gorgeous body are enough to turn him on, but he's not hard quite yet. He scrolls to the next picture. In this one, Bakugou is turned around so Kirishima has a good view of his ass. Damn...that view, mixed with the cocky grin and lust filled eyes of his boyfriend is amazing. He scrolls again and bites his lip at the sight of the blonde bent over, spreading his ass cheeks to show off his entrance. Fuck, how he'd love to be inside him right now, make him moan like a bitch and scream his name...and he's hard.

He puts his phone down and picks up the sounding rod. He coats the thin metal bar in lube and braces himself for a whole new sensation. He slowly slides the rod into his urethra, not feeling anything too bad. It just feels weird. The farther down the bar goes, however, the more slight pain he can feel in his member. He whimpers and moans softly until it's finally all the way in, aside from a little round ball poking out of the tip of his dick. He lets out a sigh and gets to work making the silicone mold. Once he has it all mixed, he lathers his dick and balls with baby oil, positions himself over the bucket, and sinks himself into the pink slime...and it's at this moment that he realizes just how stupid this idea was. The kit said the silicone should harden in just a few minutes, so all he needs to do is make sure he doesn't go soft before the mold hardens. With the sounding rod, he's pretty sure he'll be fine, but just in case, he brings two fingers to his mouth and sucks on them. Once his fingers are coated in saliva, he reaches back until he finds his entrance.

Long story short, he ends up fingering himself to keep himself aroused, biting his lip and stimulating his prostate as he softly moans into the empty apartment. He imagines it's Katsuki's fingers instead of his own, preparing him to be fucked into their mattress, or over the kitchen counter, or even over his desk at the agency. Each time he feels the spring in his stomach tightening, he forces himself to stop, denying himself an orgasm until the silicone hardens. Once it finally does, he quickly and carefully pulls himself out of the now white mold, extracts the sounding rod, and resumes his stimuli. He finds his sweet spot again and massages it like his lover has done so many times before, wrapping his free hand around his member and pumps his hand in time with the flick of his wrist. He feels the spring tightening once again, and this time he doesn't stop it, but speeds up the motions of his hands as he moans out his boyfriend's name. After a moment, a wave of pleasure washes over him as his orgasm hits, making him release all over his chest.

He extracts his fingers from his ass as he comes down from his high. He checks the time and decides to send his boyfriend a picture of the mess he made, captioning it with a coy "I miss you~😘". He gets up to go clean himself off, and once he checks his phone again, Bakugou has responded.
"Fuckin miss you too. Now I have a damn hard on at work and it's all your fault. Love you, Shitty Hair."
"Love you too baby!"
Kirishima snorts and puts his phone away, then gets to work making the liquid rubber.

----------

A week or so later, Kirishima receives a call while making himself breakfast. He checks the caller ID and beams when he sees that it's his boyfriend. He answers the call.
"Hey babe-"
"So you wanna fuckin tell me why I got a fucking dildo in the mail today?" Bakugou cuts him off, a bit of salt in his tone. Kirishima laughs out loud.
"Okay, listen—"
After his explanation, he once again left the blonde questioning wether or not he actually had hair for brains...even so, the toy was put to good use.

Ok yeah I know this has slight crackhead energy but I had to tell someone.