Thread by @notits4you

|| #bkkrkinkmas @redbirbforseeds #bkkr ||

day eleven: k is for kissing 😌😘

additional cw: underage (middle school kiri, college bokuto), frottage, dry humping, age gap, handjobs, spit, sloppy makeouts

eijirou had a babysitter who was the most manliest man ever. katsuki had been his neighbor for as long as he could remember, but had only started babysitting him over the last year and only when he was back from studying at university.

eiji looked forward to it though, bc katsuki would always let him stay up late watching manly action movies, would share his super yummy junk food (as long as he promised not to tell) and never hesitated to share the most adult stories from college

katsuki was the coolest !!

today though, eiji was determined to ask him a question. about something that was probably pretty unmanly, but still important nonetheless.

“kat—su—skiiiii~” eiji called as he ran into the living room, launching over the side of the couch and landing with an oof on the floor.

“what’re you doing brat ?? don’t hurt yourself; your mothers wouldn’t let me hear the end of it.” katsuki scoffed and rolled his eyes, though only after making sure that eiji was okay. the boy sheepishly grinned, rubbing his sore butt and moving to sit on the couch.

“sorry, ‘tsuki, but i have a question!! it’s something everyone at school’s been talking about, but i still don’t get how to do it.”

“i bet it’s something stupid. you middle schoolers are into the dumbest shit.”

eiji loved it when katsuki swore in front of him;

he said he only did bc since eijirou was going to be a manly man one day, he had to know all about manly things and manly words.

though the one time he had let it slip in front of his moms, they made him feel anything but manly for it.

“don’t make fun okay ‘tsuki?? everyone at school already does.” as much as he liked to make fun, katsuki hates to see those big eyes looking so sad. they begun to fill with tears, causing the older boy to sigh and put his show on mute.

“hey, eiji, it’s fine. tell me, okay?”

eijirou sniffled, rubbing his nose and looking up into the kind crimson eyes. as nervous as he was, katsuki was the person he trusted most to ask about it.

“can we…practice kissing?”

katsuki froze, scanning all over the younger boy’s face to see if it was some sort of joke or prank. all he saw were two big eyes staring back at him, so innocent and full of trust.

katsuki tried to hide how it made him shiver.

“you want to practice kissing.” it was more of a statement than a question. “you don’t have any little girls in your class you would rather ask?”

“no no ‘tsuki! all the girls in my class are loud and whiny and none of the boys are as manly enough…plus i want to with you…”

his words trailed off, those big eyes skirting down to stare at the explosions on katsuki’s t-shirt and avoiding eye contact.

katsuki could feel himself getting more and more excited, skin growing hot and blood rushing downwards, all those feelings +

spurred on by the innocence that sat before him. he looked so nervous, eyes flitting about and cheeks blushing to match the color of red he always insisted to wear.

katsuki wanted to see those eyes fill with tears once more, but as his tiny lips were wrapped around his cock.

he was fucked from the beginning. as soon as eiji asked the question, he had no chance of fighting against it.

might as well go for gold then.

“you wanna practice kissing eiji?” his grin split wide across his face, more menacing then reassuring. though sweet little eijirou couldn’t tell the difference.

“then come sit up here so your generous babysitter can teach you.” he patted his lap and eiji wasted no time moving.

less than 20 minutes later and eiji was a mess.

his black hair was matted against his forehead, entire faced flushed with pink as he continually rutted his hips forward, looking for some sort of friction down there.

katsuki smirked into the kiss, taking a second to let eiji breathe before diving back in. he kissed the boy hard and deep, pressing against those sweet and soft lips before nipping at them, asking for permission to enter.

as if he even needed to ask.

eiji was such a good boy; he gave everything to katsuki without thinking twice. he let his big hands roam all over his skin, groping the smooth fabric of his shorts and only getting a little distracted when those experienced fingers moved underneath his shirt.

as they pinched hard on one of ei’s tiny pink nipples, the gasp that followed was a perfect opportunity for katsuki to shove his tongue into the boys mouth again, drinking up the moans that followed.

he was like putty in his hands, so sweet and open and willing to take whatever katsuki gave him, each movement of the older man’s tongue mirrored by strong hands that eiji couldn’t help but grind into, whether it was back so they could grab his ass more or whether it was +

forward so that his privates felt some friction.

“ah….katsu-niii….i feel weird” eiji broke the kiss to rest his head on katsuki’s shoulder, hips moving in double time as the warmth in his stomach got stronger.

“i feel like….ah….oh my god….”

“what is it, eiji?” katsuki wrapped his arms around the small boy in his lap, taking a second to grind his fully formed erection into the smaller boys one, absolutely savoring how eijirou threw his head back and moaned into the air.

katsuki dived back in, nipping and sucking +

on eijirou’s neck, careful not to leave any marks he would have to answer for later.

though the temptation to mark the boy up, irregardless of who would know afterwards, was very strong.

“kats…i think i have to pee…” eiji’s words were slow and unsteady, directly +

contrasting the quick and needy movements of his hips. they were both still fully clothed, but katsuki could tell that the boy was reaching his limit.

shit, just looking at the sight before him had katsuki almost there too.

eiji looked totally fucked out, black hair both sticking up and matted down to his skin, shining with sweat and lush with color. his hips moved with no rhyme or reason; primal instinct had taken over some time ago and eiji didn’t know much but knew something strange was coming.

“you have to pee eiji?” katsuki stopped nibbling on the boy’s ear for one second, moving to bring a hand to where their crotches met.

“let me make it easier for you.”

he plunged his hand into the front of eiji’s shorts, long fingers immediately wrapping around the boy’s +

painfully stiff penis. it was so small that katsuki could easily fit it around just his thumb and ring finger, and that thought made katsuki shudder once more.

“fuck eiji, you like this don’t you? you want me to make you feel even better?”

katsuki asked, sure that the boy was beyond words but watching his face for every small sign. through the erratic movements and blissed out moans he could see eiji nod as his tongue rolled out to the side.

katsuki couldn’t wait to get his mouth back on it.

before he did he gathered all the spit he had in his mouth, letting it fall slowly down onto eiji’s cute little cock, smearing the fluids all over so he could get a better grip.

then he leaned back in to capture eijirou’s mouth once more, moving his fist faster in time.

“you’re so sweet eiji, my sweet little boy. i bet you like kissing now, don’t you?? and none of the girls in your class could kiss you the way i do.” those words were mumbled into eijirou’s lips, as his mind went blank and his body began to tense up even more.

katsuki continued his assault, fist pumping fast along the boy’s cock and lips moving across every inch of eiji’s face. katsuki took a second to pull back, admiring the view before he leaned in to whisper in eijirou’s ear.

“now come for me eiji, come for katsuki.”

eijirou wasn’t sure what exactly katsuki meant, but it felt like a tightly wound coil in his stomach had snapped with the older man’s words. his body started shaking and he lost all ability to speak, simply riding out the high of his orgasm.

katsuki couldn’t help but notice that it was an almost completely dry one, with eiji still being too young to produce much semen. what little he did was mixed in with katsuki’s spit all across his fingers, which the older man wasted no time in tasting.

“you taste sweet eiji.” katsuki said with a smirk, making quite a show of licking his fingers clean.

“i got something else for you taste though, if you’re up for learning about a different kind of kissing.”

as eijirou came down from his high and back into his body, he became very aware of the huge bulge he was sitting on. a bulge that had been freed from the confines of katsuki’s sweatpants, red and leaking and angry and staring up at eijirou like it had a bone to pick.

it seemed like kissing was something he would have to practice more in the future. and if he could do it with katsuki all the time, eijirou didn’t mind at all.

||end||

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