tw: shota , noncon (later)

young katsuki decides that he should try touching eijirou naked after he saw it in the movie his mom was watching. he doesn’t think much of it, it just looked fun, and the idea of doing that with ei excited him in a way he couldn’t explain.

he knows eijirou will agree, he’s always up to try something new that could be fun, and he’s still little enough that he goes along with whatever katsuki says. katsuki’s a few years older than him, but he thinks eijirou forgets that sometimes.

he’s always acted like he thinks he’s bigger than he actually is, and katsuki thinks it’s almost cute.

unsurprisingly, it takes ten seconds of coaxing to get him laying naked on katsuki’s bed during their next play date.

he doesn’t really seem uncomfortable past the fact that he’s cold, but he squirms a bit when katsuki starts touching him.

“Relax, it’s supposed to feel good.”

eijirou doesn’t really get into it, but katsuki’s pants are uncomfortable and his penis is stiff. he wants to touch it, no, he wants eiji to touch it.

he strips down and lays next to him.

“My turn.”

ei bounces on the bed a bit as he hops between katsuki’s legs and grabs him without any hesitation, until katsuki groans and he jumps back.

“Did it hurt?”

katsuki doesn’t know how to describe exactly how it felt, but it definitely did not /hurt/.

“No, keep going. Don’t stop until I tell you to.”

eijirou shrugs and gets back to rubbing him. his small tongue is poking out a little with how much he’s concentrating, and katsuki gets an idea.

“Put it in your mouth.”

“Huh?! But pee comes out of there!”

he’s staring at him like katsuki’s suggested the most insane idea imaginable, but he can’t give up after imagining how good it would feel.

“So? It isn’t right now. I won’t pee in your mouth, that’s gross. Just suck on it like you do your thumb.”

“Hey! I don’t suck my thumb anymore! I’m big now.”

“Liar.”

eijirou pouts at him and katsuki rolls his eyes.

“Fine, whatever, I believe you. Now put your mouth on it before I get bored of playing with you.”

he huffs out, “You’re so mean!”, but still scoots back to position his face over katsuki’s crotch. he bites his lip as he tries to think of how he’s supposed to do this, and the action is uncomfortably enticing to katsuki.

“Why’s it so hard?”

“I don’t know, just fucking suck it!”

eijirou gasps and starts to talk again “You said a bad- ah!“

he pushes at katsuki’s wrist when he grabs a fistful of soft black hair.

“Let go!”

“Then do what I told you to!”

katsuki lets go when eijirou scowls up at him and nods slightly. he turns his attention back to katsuki’s painfully hard penis and takes a deep breath before leaning down and sucking on the head.

it’s not big enough to be a real problem for him, but katsuki still likes how it completely fills up his tiny mouth when he thrusts up.

eijirou makes a little grunt that turns into a whine, but doesn’t fight when katsuki holds his head still so he can really fuck his mouth.

he only starts hitting katsuki’s legs when he’s held down against his crotch as katsuki comes down his throat after only a handful of thrusts.

it feels amazing, and he’s almost in a daze until he registers eijirou sitting on his butt and crying with white stuff running down his chin.

“You promised you wouldn’t pee!”

“I didn’t pee! Stop crying! My dad’s gonna hear you!” katsuki whisper-yells, but it does nothing to stop eijirou’s wailing.

“Shit, I’ll suck yours too, okay? Just be quiet!”

eijirou shakes his head and rubs his eyes as he continues to cry. katsuki’s heart just about stops when there’s a knock on his door.

“Everything okay in there, boys?”

tw: incest not really but sort of. also like, blood ig

katsuki grabs eijirou’s arms and jerks him forward to whisper harshly in his ear.

“/Shut up/. Stop being a crybaby, you’re gonna get me in trouble!”

“Katsuki? What’s going on? I’m coming in.”

“No!”

(this is the dark part lol tread carefully i guess)

•

masaru is certainly surprised to see his son and eijirou nude on his bed. even more so when he notices katsuki’s harsh grip on the little boy, and the way what is obviously cum is dripping down eijirou’s chin as he cries.

he can’t really say he didn’t expect something like this to happen eventually, but he didn’t think it would come so early. he didn’t think his son would already be taking after him at such a young age.

he steps further into the room and clicks the door shut behind himself.

“Well, boys, care to explain what you two have been doing?”

“Nothing!”

“It doesn’t look like nothing, Katsuki, It looks like Eijirou put his mouth on you.”

eijirou cries louder and pulls away from katsuki to turn towards his father.

“I’m sorry!”

“Shh.”

masaru collects the cum from eijirou’s chin with his thumb and pushes it past his lips.

“Suck.”

eijirou looks up at him with a confused and upset expression before hiccuping and doing what he’s told. his nose scrunches up at the taste, but his little tongue still rubs against masaru’s thumb.

katsuki is watching with obvious interest and a flushed face.

“What you boys did was wrong, and I think you know that. You also know what happens when you do something wrong, right, Eijirou?”

“I get in trouble?”

“That’s right. Now turn around and bend over.”

eijirou hiccups again and positions himself with his elbows on the bed and his ass in the air towards masaru. so obedient.

“Do I get a spanking?”

“Not quite. Katsuki, come stand next to me, this is your punishment too.”

katsuki frowns slightly but gets up to stand by his father, ignoring the way his penis got hard again. masaru spreads apart eijirou’s cheeks to see the little pink hole between them and groans at how huge his hands look on the small body in front of him.

“Spit here, Katsuki.”

“Huh?!”

“You see his hole right here? Spit on it.”

katsuki scowls at him until masaru lifts a questioning brow and he huffs before leaning over to spit on eijirou.

it’s not enough, but masaru is satisfied with the fact that katsuki did as he asked, so he goes ahead and finishes for him. eijirou squirms at the feeling of their spit on his privates.

“Now, Katsuki, make sure you pay attention.”

he waits until his son nods before he presses a thick finger inside eijirou’s untouched entrance.

ei’s crying picks up again, and his body tenses at the intrusion, but he doesn’t make any move to try and stop him.

“You have to go slow when fingering him, or the next part won’t be possible. He’s too small to be ready without this, you understand?”

“What’s the next part?”

“You’ll see, but first you need to tell me that you understand important it is to use your fingers first.”

“Yeah, I get it.”

masaru smiles and puts his attention on pumping his finger in and out of eijirou until he starts to actually loosen up and stop clenching so hard.

“Relax, Eijirou. Katsuki and I are going to make this nice for you. Right, Katsuki?”

“Mhm.”

he smiles again at how captivated katsuki is on the scene in front of him. he really is a boy of his father’s nature.

masaru knows eijirou is probably still too young to get any real pleasure from what’s going to happen, but the least he can do is try to keep the boy’s pain to a minimum.

“Is it done yet?”

“No, Eijirou. This hasn’t really been punishment yet, has it?”

“N-No?”

eijirou tries to push himself up to look behind him, but masaru puts a hand on his upper back and presses him down.

“Stay still, it’ll hurt more if you struggle.”

he cries out and fists the sheets by his head when masaru pushes in a second finger.

“Shh, you’re okay. You’re okay.”

“Hey, wait, why’s yours hard too?”

masaru looks down to where katsuki is pointing at the tent in his pants.

“Well, Katsuki, it’s just my body getting ready for what we’re going to do next.”

“You keep talking about “next” but you won’t tell me what it is!”

“Being impatient is dangerous, Katsuki. We need to take our time to avoid hurting Eijirou. Though, I do think this is about as close as we can get to prepared.”

“What’s that mean?”

“Just wait.”

masaru pulls his fingers out of eijirou and tugs off his own clothes before climbing on the bed to sit with his back against the headboard.

“What are you doing, old man? Gross.”

masaru chuckles at his son’s reaction, but he knows that by general standards, his body certainly isn’t gross.

there’s a bit of give over his abs nowadays, but he’s never had a particularly hard time staying fit. he’s sure someday katsuki will get muscular just as easily.

“Come here, Eijirou. Sit in my lap.”

he sits up and hesitates. masaru can see the discomfort and confusion on his pretty little features, and he reaches out to coax him forward.

eijirou whines softly and looks over his shoulder at katsuki while masaru pulls him in until they’re chest to chest with eijirou straddling him. good, he’s glad to know katsuki is still watching.

“Katsuki, come up here and sit next to me.”

his son is too enraptured with the way eijirou looks spread out in front of him to even think of arguing. his eyes dart between masaru’s face and eijirou’s body once he’s beside them.

“What now?”

“Now, we’re going to teach Eijirou how to grown up kiss, before we finish his punishment.”

“Wh- How?”

“Well, I’m going to show him, and I’ll let you try after I finish if you behave.”

“How come you get to go first?!”

“Katsuki, don’t speak to me that way. I’m going first because I’m the grownup.”

his son huffs and crosses his arms with a frown that says he wants to argue, but wants even more to get his reward for good behavior. masaru smiles.

he turns back to eijirou, who’s starting to look more confused and curious than scared, and lightly holds the little boy’s chin.

“Tilt your head up and close your eyes for me, Eijirou.”

masaru watches him squeeze his eyes shut and pucker his lips out like a fish, and he can’t keep from laughing softly. he always knew eijirou was perfect for this.

“Don’t forget to watch me, Katsuki.”

he doesn’t wait for a response before dipping down and catching tiny lips in his own. eijirou’s mouth is soft, like every other part of him, and he doesn’t fight when masaru forces his tongue inside.

he makes a tiny squeak of surprise when he feels someone else’s tongue touch his own for the first time and masaru eats it up. he feels like he could just eat eijirou up in general.

he’s so glad this is the friend katsuki decided to experiment with, none of the other boys he plays with would suffice. masaru had already known eijirou was enticing to him.

he supposes he can attribute this to his son already sharing his tastes. there’s no doubt katsuki chose eijirou deliberately out of all of his friends, and it can’t just be pure luck that the boy he made suck him off is the only one masaru wants.

he puts his hand on the back of eijirou’s neck and gets lost in the kiss. the sounds he’s making are so sweet and soft, and he tastes like the fruit mitsuki gave them earlier before she went out. he really is the perfect boy for this.

masaru pulls back when he notices that eijirou’s out of breath and katsuki is complaining.

“It’s my turn! You did it for a long time, I wanna go now!”

“Katsuki, what did I say about that tone of voice?”

“Not to do it.”

“That’s right. So tell me why I should give you what you want when you’ve been misbehaving?”

katsuki’s face scrunches up in frustration and masaru can tell he’s working hard to keep from yelling.

“I was good for a while.”

“You were, but do you think it was long enough for you to deserve to kiss Eijirou?”

“Yes! You said /we/ were gonna teach him, I should get a turn too!”

masaru chuckles at his headstrong son and his heart warms at how badly katsuki wants this.

“Alright, I’ll let you have a turn if you promise to behave from now on. Deal?”

“Deal, I promise.”

masaru looks down at eijirou who has been smacking his lips since he pulled away. he’s probably still processing the feeling of someone’s mouth on his, it is a strange sensation.

he picks him up by his waist and turns him around to straddle masaru’s thighs facing away from him. eijirou giggles at the unintentional tickling from hands on his sides.

masaru can tell he isn’t even thinking about the fact that the way he’s spread out is giving him direct access to his stretched hole, he’s obviously too focused on preparing for his second kiss.

he turns his upper body to face katsuki, but the big hands holding his hips prevent him from doing anything else. masaru finds it adorable how nervous both of them look when they lean in towards each other.

eijirou’s slightly kiss swollen lips are parted a tad bit already in anticipation for katsuki’s tongue, and masaru isn’t surprised when his son kisses the boy with the same aggression he has with everything else.

he wasn’t expecting katsuki to do things he hadn’t, though. but he never really has fit the mold. the way he’s biting and sucking on eijirou’s lips can attest to that.