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“Mommy!” Izuku calls, rushing to greet her as she steps into the genkan. Inko smiles down at her little boy, crouching to pull him into a hug. Izuku slams into her, his little arms unable to reach further than her sides as he buries his face into her chest. He hums in delight, cuddling into his mother.
“Welcome home, Mommy,” he says, muffled as he refuses to remove his face from where he nuzzles into her chest.
Inko laughs, patting his head with one hand and rubbing his back with the other.
“Thank you, Izuku. Were you a good boy, staying at home by yourself?” Inko doesn’t like leaving him home alone. She worries, but she has no choice. After Izuku’s… diagnosis, his usual babysitter politely refused to watch him again. In fact, no one was willing to watch him. She’d briefly asked Mitsuki for help, but after the third time her boy came back with bruises, she couldn’t bring herself to send him near Katsuki anymore.
Her Izuku, however, is a good boy.
Izuku pulls away from the hug to nod frantically at her. “I was good, Mommy! I ate all my dinner and finished up my homework before ‘puter time. And I only watched for two hours!”
Inko raises a skeptical eyebrow. “I thought I told you that you could only have one hour?”
Izuku looks away sheepishly for a moment, turning back to face her with that same doe-eyed look that never fails to melt her heart.
“I’m sorry, Mommy, but I was watching All Might! And then I found this cool website where people do exercises, and then I wanted to do it too! And then I watched more, because maybe if I exercise I can be strong like All Might one day!”
Inko’s heart breaks at his excitement. She doesn’t have it in her to crush his hopes, but hearing him speak about his dreams of becoming a hero, even after his diagnosis, pains her to hear. She pulls him into another hug, squeezing him tight against her chest and kissing his forehead before letting him go.
“Why don’t you show me the exercise, honey? Maybe we can do it together!” Inko smiles.
Izuku lights up at the request, turning instantly on his heel to run into his bedroom.
“I gotta get the stuff, Mommy! Wait on the couch!” Izuku cries as he disappears behind his door. Inko chuckles before standing with a quiet groan. She wonders, as she makes her way to the couch, what kind of “stuff” Izuku could possibly need. They certainly don’t have much by the way of exercise equipment in their small apartment, and she’s sure some of the more simple exercises she expects Izuku to show her don’t require anything but his body.
She doesn’t need to wonder long, however, because the second she’s sinking into their plush couch, Izuku is darting into the living room with one of his All Might pillows in his hand—the one with All Might’s grinning face on it. He places the pillow gently on the floor before sitting on top of it.
“In the video,” he explains, “they had long pillows with All Might’s whole body on them! You could see his muscles and everything! Can I get one Mommy? To do my exercise better?”
Inko flushes, mind recalling images of lewd body pillows advertised on the All Might merch website that Inko absolutely does not let her son browse.
“Maybe when you’re older, sweetie,” she lies. “Why don’t you show me your exercise now, huh?”
Izuku’s face grows serious, nodding with determination as he moves to straddle the pillow, his shorts hiking up into the crease between his hips allowing his bare thighs to rest on either side of All Might’s face. Inko reddens at the memory of her own lonely teenage years, sitting in that same position. She shakes the thoughts away from her mind, crossing her legs as she scolds herself internally for thinking such inappropriate thoughts as her sweet 5 year old prepares to show her something. He adjusts and fluffs the pillow as Inko calms, and he’s soon grinning at her when he’s reached a comfortable position.
“You just have to move your hips and—“ Izuku sticks his tongue out, gripping the front of the pillow with white knuckles and rocking against it.
“Izuku!” Inko gasps, watching with wide eyes.
Izuku doesn’t stop. He continues to rock, angling his hips down so that his still soft cock ruts against All Might’s smile.
“It takes a minute for it to—Oh,” he sighs, breath stuttering as he finds the right angle.
All Inko can do is stare as her son gets himself off on his pillow, grinding into it rhythmically and letting out little gasps of pleasure and stuttered moans. He closes his eyes, tilting his head back in pleasure. He must hit a particularly sweet spot, because he lets out a small cry and sticks his tongue out.
“Feels so good, Mommy,” he tells her, voice thick with lust. Inko watches, helpless as a tiny tent forms in his shorts, a wet patch beginning to grow. His thrusts grow wilder as his moans get louder.
“Izuku…” It’s all she can say, stunned. She doesn’t know what to do.
So, she just watches. It’s gone on far too long to stop him. She’ll explain later, when he finishes, why he shouldn’t do such things. She hadn’t thought she’d need to have this talk with him so soon, but she needs to be responsible. She’s his mother.
And yet, when Izuku lets out another sultry moan, all Inko can do is let one hand cover her beating heart and the other press dangerously against the dampening patch on her pants, desperately squeezing her thighs even tighter.
“In,” Izuku hiccups. “In the video, and they didn’t—hnng—wear clothes,” he tells her, finally opening his eyes to stare right at his flushed mother. “‘Cause it’s sweaty.”
Inko chokes, watching as a bead of sweat forms on his brow. All she can do is nod.
“But it feels so good, Mommy. Can’t stop!” he lets out a small choked off sob as he grinds deeper into the pillow. His shorts bunch dangerously, revealing even more of his milky thighs beneath. Had he not put his underwear back on after his first two tries “exercising”?
Izuku’s hips thrust erratically as he continues. A few times he rises off the pillow entirely, his hard cock and tiny balls swinging wildly in his shorts as he whines and searches for that pressure once again. Inko stares, mesmerized, as tears begin to fall down his face.
“Izuku, honey,” Inko calls, her voice shaky, unsure of what else she should say.
“Mommy!” Izuku cries in response. He sounds so desperate. So pretty. Inko’s hips buck involuntarily, thighs still squeezing together. Heat pools in her belly as the friction of her own panties sends a rush of pleasure through her throbbing clitoris. Her mind grows fuzzier with each wanton moan that falls out of her son's plump, spit-soaked lips.
Inko can’t help herself. She gives in. “Izuku, baby. Tell me where it feels good.”
Izuku hiccups, his arms shaking as he holds the pillow to himself.
“My,” another moan. “My private parts,” he tells her.
“What does it feel like?” She adjusts her hips so that her wet cunt presses flush against the couch, and absolutely does not grind into it.
“Good!” he cries again. “So good!”
Inko shakes her head. “That’s not the answer I expected from my smart boy,” she chides. “What does it feel like, Izuku?”
Izuku is sobbing now, hunched over as he chases his pleasure. “Tingly!” he tries. “Warm! In—in,” he hiccups.
“In your tummy?” Inko tries.
Izuku shakes his head. “In my dangly—hnng—boy parts, Mommy!”
Inko bites back a groan. He’s still undeveloped, balls small and tight, hanging close to his body. They won’t develop semen for years yet, but the thought of her boy spilling all over himself and his favorite pillow has Inko shoving her fingers in her mouth to quiet the whorish moans that threaten to escape.
“Mommy, I’m almost there!” he cries.
“Are you close, Izuku?” she breathes around her fingers.
Izuku nods frantically. “So close, Mommy!” He ruts harder against the pillow, rocking forward on the carpet with the intensity of his thrusts. His shorts are beginning to tug wildly and Inko can’t keep her eyes off of them, hoping for at least a glimpse of the tiny cock she’d spent years touching. She’d never thought of him like this, assumed she’d have years before she would have to give in and talk with him. But as it strains against the wet fabric of his shorts, she can’t help but pray that she’ll get to see what it looks like, pretty and flushed as he chases his orgasm.
She presses her palm flat against her crotch, hoping to stave away the intense throbbing she feels, but she’s only met with another rush of slick as Izuku’s cock finally slips out of his shorts. The waistband pools just above his balls, letting his cock bob freely in the air. Izuku lets out a small whine at the change in friction before he’s leaning further down to smush it into All Might’s wide smile. It’s just as pretty as she hoped, the size of her longest finger and just a bit wider. It dribbles precum on the pillow, tip shining red and balls squashing into it.
What she wouldn’t do to feel it in her hand, twisting around the skin she knows is soft.
“You’re doing so good for me, Izuku,” Inko encourages him, receiving another sob for her efforts.
“Mommy, close!” he cries, hips starting to lose their rhythm. Inko gulps, eyes straying from his pretty pink cock to see the concentrated, scrunched up expression on his face.
Inko bites her lip and makes a decision.
She stands up from the couch, coming behind Izuku to rest her hands on his tiny hips. He pauses for a second, but she shushes him and urges him to continue. Izuku doesn’t need to be told twice. With Inko’s guiding hand, he’s thrusting heavier against the pillow.
“Say my name for me, Izuku,” she whispers to him, pulling one hand away from his hips to brush through his sweaty hair.
“Mahh—“ Izuku tries. He can’t quite get the word out.
“Come on baby, I know you can do it. Be a good boy for Mommy.”
Izuku sobs, his thrusts beginning to slow with exhaustion. Inko continues to help him along, pushing his hips with her hands.
“Say it, baby. Say Mommy.”
Izuku hiccups, opening his mouth. “Mommy!” he cries.
Once he starts, he can’t stop. “Mommy, Mommy, Mommy!” He chants. He’s a broken, babbling mess and Inko can only stare helplessly as his cock begins to twitch. Izuku cries out one final, stuttered “Mommy!” as his orgasm rips through his body. He shakes in her hold, tiny cock dancing wildly as it tries to release a liquid it hasn’t quite developed yet. Her mouth waters as she watches, desperate to reach out and see how much of it she can fit inside her. She only just manages to hold back as Izuku slumps backwards into her arms.
He pants heavily, breath stuttering around the remnants of his sobs. Inko shushes him, wiping away his tears and running her fingers through his hair. He melts into her hold, her sweet boy, and looks so peaceful and happy like this.
His cock still hangs out of his shorts, but Inko makes quick work of tucking it back in, tutting quietly at his whines of overstimulation.
“You did so good. So good for Mommy, my beautiful boy,” she tells him.
Izuku opens his eyes to look at her, tilting his head backwards. She smiles at him and Izuku answers back with his own tired grin. Her heart melts at the sight, and Inko soon bundles him in her arms to take him to the couch, where he promptly settles into her lap and buries himself into her chest. She chuckles quietly at him as he nuzzles into her breasts. He looks so sweet, so beautiful, and all thoughts of Inko taking care of the problem still present in her pants have gone out the door.
“That was fun, Mommy,” he says to her. “But I’m tired.”
Inko pats his head. “I’m sure you are, sweetie. You worked out so hard.”
Izuku nods lethargically. “Took longer this time. ‘Cause I was still tired from ‘fore.”
“Three times in a row! Wow, you are getting stronger!”
She knows she shouldn’t be encouraging him. She should tell him that what he did was inappropriate. That it won’t make him stronger, and that he should find another way to be a hero. But as Izuku’s flagging cock drags against her thigh when he shifts in her arms, she can’t quite bring herself to say the words.
“Will you do it with me next time, Mommy? I want you to feel good too. We can be strong together. Like hero partners!”
Inko’s heart swells at the declaration. She leans down to press a quick peck against his lips, smiling at the giggle he lets out when she does so.
“We’ll see Izuku. Now I think it’s time to get you ready for bed.”
Izuku whines, despite how tired he is. He buries his face back into her chest, Inko’s heart rate skyrocketing once again.
“Can I sleep with you tonight, Mommy?” he asks.
And Inko. Poor Inko. She could never say no to her sweet boy.
“Only if you promise cuddles.”
Izuku nods, relaxing into her as his breaths start to even out.
“Love you, Mommy,” he mumbles.
“I love you too, Izuku,” Inko whispers, rubbing his back lightly. “So, so much.”