Thread by @whatif_danna

iida noticing throughout the week that sero has been distracted and doing poorly in class and training, so he finds sero during saturdays dorm cleaning hours, starts pulling out the couch cushions with him, and asks sero what’s on his mind.

“its so embarrassing, man” he admits,

cheeks flushing, eyes looking elsewhere as he idly scratches his neck. “and it’s not even her fault! its just something about this week, i guess.”

well, that answers absolutely nothing, but iida’s in a patient mood, so he hums. “her? who do you mean?”

“shouto,” hanta murmurs, and turns on the vacuum before iida can ask what shouto’s done to distract him all week.

iida overheard shouto talking with tsu about new lotions on monday, and her and ochako went thrifting on tuesday after classes… and she did exceptionally well

during rescue ops training wednesday, when shouto and sero were paired up, maybe something happened then?

iida helps sero vacuum the inside of the couch and each of the cushions in silence, unable to talk over the loud machine in confidence, so when they finish up

and start putting the couches back together, iida decides to poke more into the matter. he wanted sero to do well, as his friend, and if he could help somehow then he was eager to do so.

“sero, you can tell me if something came up during class, or training, and I can talk

“to todoroki if you need. it’s part of my representative duties to ensure everyone in our class gets the help—“

“it’s nothing like that, prez, i swear,” hanta interrupts with an easy smile, though his cheeks are still flushed and his eyes shift around uncertainly.

“like i said, it’s embarrassing and stupid. i’ll get over it eventually.”

sero rebuffs him again and again, so iida lets the matter drop. sero goes to clean in the kitchen when kaminari calls for his ‘lanky assistance’, and iida begins fluffing the couch pillows.

some time passes and iida finds himself cleaning the windows, circling his way around the common room until he’s in the dining area, near the wide entrance to the kitchen, and he overhears kaminari’s signature giggle-snort, and sero agreeing with him over something. maybe…

“… yeah man, jirou told me she’s a C cup now with some quirk enhancements or whatever, so cool that they let doctors do that now…”

“no wonder the buttons on her shirt looked like they were going to pop off during the english presentations”

“right!! good for her,

honestly, shouto’s lucky to have cute tits now, huh?”

“shut up denks, you don’t even /know/, okay, during rescue ops training her zipper got snagged and i saw the /actual/ lacy part of the cup. like, over her boob. dude—“

“oH shit! what color was it?”

“white. it was /white/“

“ohhh, simple but sexy. didn’t think you’d be into the virginal vibes, but—“

“you fucking know that’s not it, idiot… iida’s on my case now, i’ve had half a boner all week, i’m just gonna deep clean the shit out of this grout, watch me”

iida realizes he’s been staring at the swaying hedges outside for too long, now having received the intel he needed and diving objectively into the exact situation sero described.

shoutos tits did look really nice this week, that’s true. iida’s not blind, he knows a pretty

girl when he sees one, and he’s seen shouto both clothed and naked plenty of times, though that’s (thankfully) a well-kept bite of gossip.

it gets him thinking, though. thinking really hard, pondering how to improve seros attention skills.

then he gets an idea.

several hours later, after talking with shouto behind closed doors, he catches sero washing dishes after dinner and asks if he’s available to study, since he spaced out and flunked cementoss’ pop quiz.

seros hesitant to accept, iida can tell, but he really pushes it,

even inviting him to smoke after, making tensei’s recent strains sound exceptionally tantalizing. sero sighs and finally says he’ll go, just that he wants to shower first and call his sister.

iida walks back to the elevators with more energy than he expected, almost giddy

with what he’s going to teach sero.

the time comes around, a few hours after sunset, so iida’s room is softly lit with his lamps, a few lit candles tokoyami gave him that drip interesting colors but smell really nice,

and shouto, pulling out her patterned stationery and glittery pens, kneeling at the unblanketed kotatsu in the middle of his room.

there’s a knock on his door once iida settles at the table, just next to shouto, so iida calls for sero to come in.

the surprised look on his face upon seeing shouto inside had iida’s stomach flipping, delighting in the deep pink that flushes his cheeks, and iida explains that shouto has some tips to share and some time open to study, too.

sero awkwardly moves further inside but

the tension artfully slips from his shoulders when he settles down across the table from shouto, exactly where iida wanted him.

they start studying and iida answers seros questions easily, getting started on his own homework while sero reviews the quizzes given out

over the week. under the table, shouto pokes her socked foot into iida’s knee, and he looks up at her, subtly smiling and giving her a nod of confirmation.

slowly, while sero is busy writing, shouto starts unbuttoning her shirt.

it’s when she starts sliding the shirt off that sero finally raises his head, going still as stone as he gapes at the artwork before him.

shoutos wearing iida’s favorite lingerie set, something floral and sheer and with too many useless straps, everything a soft baby blue.

iida can feel seros knee jerk under the table, watches how he scrambles and sputters, looking around like he dropped into a containment zone accidentally.

iida smiles, feeling something hot and heavy settle in his stomach, his chest expanding and shoulders settling,

reaching across the table to grasp sero’s wrist, putting the pen back into his writing hand.

“don’t worry about shouto. keep studying,” iida directs, keeping his tone low and smooth, and sero stares at him dumbly, stupefied.

then the pieces start connecting, one by one, and sero gulps thickly, nervously looking underneath his lashes at shouto, who’s begun unclasping her skirt.

“what the fuck,” sero mutters under his breath before taking a lungful of air, pursing his lips and ducking his head

to reread the paragraph he was on.

iida absently fills in answers and reads passages while mostly watching shouto touch herself, leaning back on the floor chair lazily, long nails skidding over white thigh-high socks, pressing her heels into the floor as she spreads her legs.

iida’s own face feels warm, smiling at shouto over the rim of his glasses approvingly, huffing a small laugh when shouto communicates to him with her eyes, “this is kind of easy”

meanwhile, sero does alright with getting some of his revisions done,

but iida can see how he fidgets, readjusting his seated position several times over, how he mutters to himself and shakes his head as if to clear it. distracted.

“sero,” iida says, catching his attention.

sero makes a defeated expression, turning his head at a goofy angle to look up at iida while keeping shouto at the edge of his peripheral. he does not look pleased.

“isn’t shouto pretty?” iida asks, smirking.

sero’s mouth opens in shock, before he closes it and swallows again, his throat likely running dry.

“what the fuck?” sero half whispers, refusing to look to shouto for any more answers.

she doesn’t seem to care, though, pulling her long hair over her shoulders and fluffing it up at the roots, dropping her knees to the floor, legs bent out to the sides, and huffs indignantly, almost bored, “tell me i’m pretty, hanta. i put makeup on just for you,”

sero finally turns his face to her again, valiantly trying to keep his eyes up at a respectable level, but he fails obviously, to which shouto takes advantage.

she leans forward, pressing her arms close to her sides, and puts on the prettiest pout that would get

any criminal to turn themselves in, if they were smart.

and sero, well. he has ample reason to be /distracted/.

“you’re very pretty, roki. and you’re ruining my grades.”

shouto is appeased by this, even smiling coyly, but iida reaches out, shifting himself around the table corner, and finds the nape of seros neck with his big hand.

“she’s not doing anything, though, is she?” he leans in to whisper, a bit dark and foreboding. “it’s you.

“you can’t keep your eyes to yourself, you’ve proven it a dozen times over, and you let a pretty girl distract you into bad grades,” he says, rubbing his thumb over the soft black hairs, marveling in how easily he can command seros attention like this, feeling the thick cords

in seros neck tense and shift, the warmth of his skin, the deep woodsy smell of his cologne.

he looks good like this, eyes flitting over iida’s face, all bitten red lips and dark messy hair. iida rather likes the image, and finds himself wanting to go deeper.

[[i don't have any major TWs in mind other than dom-ish iida, mild degradation, humiliation?, cuckolding vibes, and of course #iidaseroroki #todoiida #seroiida #seroroki tfem shouto]]

"are you a beast, sero?" iida contemplates, drilling his eyes into seros, subtly demanding an answer.

"n-no," sero stammers, hands over the table and notebooks almost trembling, before he lays his palms flat.

"that's right, you're respectable, and smart. can you prove it

to me, then? can you prove to me that you're a man, and not a beast that ogles women?"

it lays thick in the air, iida's rhetorical threat, but there wasn't any need to worry. seros jaw clicks shut and he nods, eyes transfixed on iida, which is everything he wanted.

"good boy," iida murmurs, close to sero's ear, and the ripple of /power/ that thrums through him when sero shivers under his hand is unlike any hard-won achievement he's ever made.

and shouto's soft laugh nearby is the sprinkle on top.

"mm, he likes that," she says, mostly to iida, and he gives her a wink when he withdraws from sero's space, hand sliding down the rifts and valleys of sero's back.

sero's cheeks flush even more after that, up to the tips of his ears. he furrows his brows, looking like he

wants to retort, but he picks his pen back up and continues his work diligently. perfect.

iida doesn't move far from sero, however, pulling his notebook closer along with his pen to continue his work. "we'll see," iida hums, lifting a brow in shouto's direction.

she smiles and sighs, leaning back in the chair, pushing out so she can stretch her long legs without touching sero underneath the table. iida watches as she runs her hands over her collarbones, twinkling the silver chains that loop around her neck,

her fingers ghosting patterns between her full breasts, over the sharp angles and scalloped hem of her bra and the straps that crisscross over her ribs, her sternum. she twirls her fingers over the plumping buds of her nipples, sighing softly as they harden,

turning almost purple through the blue tulle of her lingerie.

"that's it, shou. show me what you like," iida coaxes, leaning lazily back into his own chair, unable to deny the affect just /looking/ at shouto like this does to him, his cock filling out against his thigh as

the time goes on.

"i barely have to do anything," shouto says breathily, tweaking her nipples with a little accompanying noise. "i'm so sensitive, tenya, just like this. the lace rubs right where I like it."

"yeah? squeeze them together, shou, I want to see," iida drawls, heart thumping a staccato beat against his chest, drawing up into his throat, heat sinking down between his legs.

shouto does as he asked, using her manicured hands to push her breasts together, filling out

her palms beautifully, stretching the lace and floral pattern across pert nipples, and iida groans as she shakes them, fat jostling in tantalizing rhythm that makes his head feel a little cloudy.

"/fuck/," iida picks the word carefully, running a damp palm over his mouth,

down his throat, his chest, letting his hand rest at the juncture of his thighs.

it works as he thought it would, catching sero's attention for a moment before his eyes look to the source that caused his rare verbiage,

and that's when iida brings his hand back to sero's nape, this time /squeezing./

"what did I just say?" iida growls, never once raising his voice beyond casual, but he keens internally when sero whimpers, turning slack in his hold.

"fuckfuckfuck, 'm sorry! i'm sorry," sero sputters, eyes wide and pleading, a hand coming up to grasp the front of iida's shirt, both pulling iida closer and pushing him back.

iida tsks and croons, kneading his fingers slowly before letting his hand rest. "easy, easy" he says,

as if to placate a cornered animal, "i know she's hard to resist, just look at her."

iida pulls sero back by the neck just so, using his thumb to force sero's head to turn by the base of his skull, pressing himself closer to nose along the shell of his ear, the stretched lobe.

shouto smiles for them, pleased as punch to have their attention on her again, so she takes the opportunity to hook her thumbs underneath the straps that decorate her hips, accentuating the soft lacy frills, before she lets them drop, snapping against her skin.

her pretty pink nails dance between her legs, the crease her thighs make against her hips, down to the little bulge of her clit, pressing against the sheer fabric of her panties but still mostly soft.

the tiny, gentle sigh she releases when she drags her fingers down,

teasing herself to the very tip, makes even iida's mouth water, but he swallows discreetly. meanwhile sero is entranced, a hazy sheen overcoming his dark eyes, veiling a hunger iida wants to uncover and see for himself.

"beautiful, right?" iida rasps into hantas ear.

"so beautiful. sexy. fuck...," sero replies, a groan seeping through his words, hands curling into fists as he leans back into the support of iida's arm, hips rolling up into nothing.

several scenes flit across iida's mind, different paths he could take from here, and every one sends lightning heat down his spine, but he would be nothing if not responsible (and caring, to a point).

"you'll let me know if this becomes too much, won't you?" iida asks,

still close, but he rakes his hand through sero's hair in a comforting gesture, leaving him open for a choice.

"yeah, yeah of course," sero answers, turning his head enough to look into iida's eyes, his mouth curling into a crooked smile that does several things

to iida's heart inside his chest, but it's his approval and enthusiasm that makes iida smile in return.

"good. then you'll do as i say," iida picks the pen back up, and sero grasps it wordlessly, "finish this assignment, just as well as you would in class. i'm going to look

over it and ensure you did your best work. and shouto..."

shouto picks this moment to tilt her head in that cute way she does, her soft hair falling over her shoulders in a silky pink cascade,

and looks to iida for further instruction, hands idly resting on her chest.

"she'll show us what it feels like when the ogling is wanted," iida finishes, eyes raking up his fill of her body as he pleases.

sero gets back to his homework and studying with a vigor, making iida chuckle and lean back almost proudly, ignoring his own homework still laid out on the table while shouto's cheeks turn rosy, eyes sparkling and sweet.

then she lifts a mischievous brow, getting her knees onto the floor cushion and turning around to lean her elbows on the back of the chair, showing off her thick, squeezable ass, perfectly heart-shaped.

iida's chest rumbles with a groan as his eyes find

her plump little balls, and just above...

"oh, that's a lovely surprise," iida murmurs, feeling his pupils dilate at the sparkling crystal gem held tight between her cheeks, watching as she reaches back and tugs part of her ass to the side for a better view.

"you /did/ say 'put on a show'," shouto preens, jiggling her cheeks, swaying her hips, and the soft sounds of her skin make sero raise his head a few inches.

"shit, roki... how big is it?" he asks, half in awe.

iida's curious to know too, so he doesn't reprimand sero, and instead watches as shouto tugs her panties up her ass, bunching the fabric between her cheeks and highlighting the plug nestled between.

"big enough," she retorts easily, sliding her palm down the curve of her cheek,

letting her manicured nails press into the crystal, rolling it, and she lets out a litany of needy hums and gasps that make iida's cock throb, barely hearing the /shlick shlick/ of lube through her playing.

"oh my god," sero murmurs through clenched teeth, head dropping between his shoulders where he hunches toward the table.

"master yourself, sero," iida clips, hand sliding back into position underneath the mane of sero's hair.

he pulls him up straight, and it's then that he sees sero's hand cupping himself between the legs, over his grey sweatpants, and for a moment that feels like ages, iida watches his long knobby fingers squeeze himself,

immediately clocking the length and thickness with a surge of burning lust; wanting, needing to discover these exciting parts of sero he's beginning to crave, to feel for himself.

it's sero's left arm that's furthest from iida, and the one busy underneath,

so iida moves quickly to peel that hand aside and fold his arm behind his back, sero's wrist in a tight hold. he doesn't fight but he gasps with the swift surprise of it, groaning with frustration now.

"naughty, trying to hide from me," iida chides, shifting sero

to the side so he can place himself behind him, legs on either side of sero so he has no more excuses, nowhere to go, crowding him against the table with his barreled chest and thick thighs, pulling sero's wrist to cause just a little twinge in his shoulder.

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