Who Helped Who – Kaminari x Fem!Reader x Shinsou

“Y/N? Y/N?” Kaminari’s voice whispered urgently from the other side of your dorm room door, “are you awake?” 

You scrunched around and finally got up from your beanbag chair, hauling ass to your dorm door and opening it.

“Hey, what’s-” Your eyes fell on a very nervously agitated Kaminari, then you saw Shinsou was there too- “oh hey Shinsou. What are you guys doing? It’s like.” You checked your watch. “1am.”

“Can we come in for a second?” Shinsou asked a little sheepishly as Kaminari hung his head and fiddled with his fingers.

You looked from the messy haired indigoette to the electric blond then back again and nodded, feeling like something bad had happened.

“What’s up?” you asked after you had ushered them inside your room and closed the door.

“Ummm,” Kaminari hummed, still staring at his hands, “I… need help…”

“Are you ok? What happened?” you asked.

“Uh… I don’t really know how to say what happened…”

“This guy,” Shinsou interjected- pointing at Kaminari, “was teasing someone at the store earlier and the guy used his quirk on him.”

“Oh my god. You’re an idiot, Denki, but are you ok?” 

“No,” the blond replied sadly, staring down at his navel.

“What’s the guys quirk?” you asked Shinsou, as Kaminari still wasn’t looking you in the eye.

“That’s the thing. We’re not one hundred percent sure but we’ve been researching all night and we think it might be ‘big dick inflation’ quirk.”

You snorted with amusement but then seeing that neither of them were laughing you stopped.

“What do you mean?” You asked dubiously.

“Show her, Kaminari,” Shinsou urged.

“Ay man,” you said, backing up a bit with your hands up in surrender, “I’m not here to see unsolicited dicks in real life.”

“Please?” Kaminari asked desperately, his begging eyes finally meeting yours.

“Why though? Why me?” you asked, looking from one guy to the other.

“You’re the only one who can help me… I need your quirk…” Kaminari said nervously.

“My quirk?”

“Yeh… you can make any of your orifices bigger,” he said, looking at you intently, silently praying you would understand, “please. Can I show you what’s going on?”

They both seemed so serious about this so you decided to trust them and sighed in resignation, gesturing to Kaminari’s pants.

“Ok fine, show me.”

Slowly Kaminari ran his thumbs just on the inside of the rim of his pants and tugged them down and dropped them, revealing a GIANT cock, his balls hanging heavy and full almost to his knees.

“Holy SHIT!” you gasped, “your dick is literally past your knees!”

“It hurts,” he said sadly.

“And it’s growing,” Shinsou added, “according to what we found out it will keep growing and his balls will fill so full of cum they will explode unless he can climax.”

“You’re serious?” you asked, looking from Kaminari to Shinsou to Kaminari again, “so you need me to help get him off?”

“The thing is, it seems to be really hard to get me off?” Kaminari said sadly, “I’ve tried myself but I can’t get my hands around my cock..”

“And I helped too,” Shinsou added making your eyes dart to his in surprise, “but we just can’t seem to cover that much.”

“Wow,” you said softly, “and because I can widen my orifices- ear, mouth, nostrils and… down there… you think it will be a good fit and be able to get Kaminari to cum?” 

Both boys nodded.

“And as for protection,” Shinsou said, “apparently the sperm size increases under the influence of this quirk so you can’t get pregnant because the size of the sperm and the size of a normal female egg is incompatible.” 

“You’ve done your research,” you mused to him, “but like… what about STD’s.”

“I’m clean,” Kaminari said quickly and defensively.

“And me too…” Shinsou added then looked away with embarrassment, “not that it matters…”

You looked down at Kaminari’s huge dick again and nodded.

“It’s a good thing I think you’re both cute,” you said with a smirk, looking back up at the faces of the two boys.

Shinsou blushed and Kaminari’s eyes brightened as his cock started to swell a little.

“You joining us, Shinsou?” you asked the indigoette.

His eyes widened a little and he looked away with a small smirk then scratched the back of his head.

“Well… if the invite is there…”

“Yeah, join us!” Kaminari invited as his cock started to stand a little, pointing straight out now. 

“How should we do this?” you asked as you looked around, your eyes settling on the beanbag in the corner, “I’ve got it. Shinsou, take your pants off.”

“Now?” he asked with lowkey surprise.

“Yeah, then sit down in the beanbag and I’ll sit on your lap with my back to your chest then Denki can take me.”

“Oh man, Y/N, you’re the best,” the lightening blond groaned both hands now on his long cock, stroking from base to tip as best he could as he stepped out of his pants.

“I’m looking forward to having that inside me,” you smirked, tugging your shorts and panties off while still standing in front of the boys.

Shinsou shyly undid his pants and pulled them down, then off- his decent sized dick growing quickly in the heat of the sudden moment.

“You’re a nice size, Shinsou,” you praised him, stepping over to him and kissing him on the cheek.

“Can I have a kiss too?” Kaminari asked with his cute grin, still desperately trying to stroke himself but his hands being dwarfed by the size of his monster cock.

“Sure,” you replied with a smile, stepping back over to kiss him on the cheek.

“Can I have mine on the lips?” he asked with a cheeky smirk.

“Yeah, fine.”

You reached down and wrapped one hand around the side of his cock, not even able to cover half of his girth.

“Oh,” Kaminari gasped as you then leaned in and pressed your parted lips to his, your tongues playing before you pulled back.

“Shall we start,” you asked as you turned back to Shinsou then led him over to the beanbag.

The indigoette sat down and spread his legs then reached his hands out to guide you into his lap, sitting your bare ass down ontop of his lower abdomen and thighs as you swung your legs out over his.

You had managed to miss his cock when you sat down and it curved under you and up between your legs rubbing against the opening to your pussy. 

“Mmm, I might put you in my ass a little later if you like,” you said back to him as you turned your head and and looked up into his deep set eyes. 

“Uh, yeah… that would be nice…” he said softly, looking back into your eyes.

“Dont be shy, you can touch me,” you said as you glanced at his lips then back into his sunken eyes.

Gently his hands rested on the front of your hips and he felt your soft skin then ran his hands up under your shirt and over your soft belly. 

Kaminari was watching intently from in front of you both, still pulling and stroking his dripping cock, obviously enjoying watching you and Shinsou getting close in the beanbag as your glistening pussy stayed on show for him. 

Tenderly your lips met Shinsou’s and soon you were kissing deeply as you rested your head back against his chest, face tilted to meet his.

Shinsou’s hands roamed freely over your body then slowly made their way between your thighs, stroking your inner thighs before venturing to your clit.

You moaned into his mouth as he used his fingers to swirl around and over your clit in a circle, getting you ready to receive Kaminari’s dick.

“A-Are you getting ready, Y/N?” Kaminari asked, “I really wanna release. My cock is throbbing…”

“Yeah sure,” you replied to him after finishing your kissing of Shinsou.

You activated your quirk and your pussy softened, widening so that it would accommodate Kaminari’s quirked up dick while Shinsou reached under your ass and shifted his cock to the side to make way for Kaminari.

As Kaminari stepped forward, crouched, then knelt down before you and tilted his monster dick down to your pussy, Shinsou kissed along your neck, using his hand on your forehead to tilt your head away from his lips so that he could also watch Kaminari enter you.

The lightening blond gently inserting his girth inside you and pulling a very erotically pleased face as he pushed it all the way in, groaning as he finally sheathed his length inside you.

“Wow,” you gasped with delight, “I feel so fucking full.”

“Damn this feels good,” Kaminari groaned as he pulled back a little then pushed in again, a small bulge poking up in your lower abdomen each time he thrust into you.

“Shit,” you groaned, turning your face back to kiss Shinsou again as the indigoette moved his hand back to your centre to toy with your clit.

“Fuck,” Shinsou whispered, his head rolling back from yours.

“You good?” you asked him.

“Yeah… Kaminari’s shaft is rubbing against my dick as he’s fucking you and it feels…” He groaned with delight again.

“Denki,” you said to the electric blond as his eyes glazed over, hips swinging rhythmically back and forth against you.

“Yeah?” He whispered, groaning with delight as he picked up the pace a little.

“Kiss me.”

He nodded and leaned forward then pressed his wetted lips to yours, sharing a heated kiss with you as he thrust into your pussy while Shinsou rubbed your clit.

“Me?” Shinsou asked from behind you, asking Kaminari for a kiss too.

The blond nodded and leaned over your shoulder to lock lips with the indigoette and you turned your head to watch them.

“Hot,” you groaned, leaning your face in too and kissing each of their cheeks before they turned to you and all of your tongues played outside your mouths. 

Kaminari’s giant cock felt amazing inside you and although you knew Shinsou was getting a bit of pleasure from Kaminari’s cock, you wanted him to feel real good so you pulled back from the threeway kiss and placed your hands on Kaminari’s chest.

“Hey, wait a second, let me put Shinsou in my ass.”

“Is it ok?” Shinsou asked as Kaminari pulled out of you.

You nodded, “yeah, I’m gonna feel extra full but it will also feel extra good, right?”

Activating your rear hole, you stretched it open a bit to accommodate Shinsou and the indigoette reached under you as Kaminari crouched down and licked lightly around your ass hole then gave Shinsou a short blowjob- just to get him wet, before helping to insert him into your ass.

You groaned with delight as Shinsou’s cock filled your ass then his lips were on yours again, kissing you fervently as he bucked his hips a little up into you.

Kaminari knelt back and watched, grabbing his girth again and furiously stroking himself as his eyes glued to Shinsou’s cock thrusting into your ass hole.

“Fuck, I need to cum,” he moaned, his eyes moving from the ass fucking to Shinsou’s nimble fingers rubbing your clit.

“Come inside again then,” you invited, pulling your lips off Shinsou’s so you could reply Kaminari.

He stepped forward and pushed his giant cock back inside you, going slowly now that you were being filled in both holes.

The pressure made your eyes cross momentarily and you groaned with delight as he pushed up into you.

“I’m getting so close,” he whispered, “watching Shinsou fuck you is bringing me undone.”

“Then let’s get you finished,” you whispered provocatively.

Shinsou held still while Kaminari rocked his hips against yours, his loud panting becoming more urgent as he sped up.

“Come on, baby, fuck me harder,” you moaned, gripping onto Kaminari’s hair and pulling his face down to yours so you could whisper your encouragement into his ear.

Your tongue met as he quickly turned his head to yours and groaned into your mouth, picking up the pace and speeding up your release too as Shinsou moved a little in your ass and continued to finger your clit. 

“I’m close,” Kaminari panted urgently, his face scrunching up as his orgasm built.

“Me too,” you mewled, panting just as harshly as he was.

Your lips locked again and suddenly you felt warmth invade your core, a deep pulsating accompanying it as Kaminari’s cock emptied its contents into you.

The pulsating inside you bought you to your climax and you moaned into Kaminari mouth as your abdomen extended.

Shinsou started to move a little too, upon hearing your and Kaminari’s salacious noises, and he bucked up into your ass as Kaminari’s cum started to leak out of you from around his deflating dick, dripping down onto the beanbag.

You rested your head back against the indigoette’s shoulder as you came down from your high, and as you did you felt him reaching his peak.

“Cum in me,” you whispered, turning your head to his so you could kiss his neck.

He lifted his hands to your waist and held onto you as Kaminari finally pulled out of you- a rush of cum from your pussy following as he stood up.

With a few more rapid pumps, Shinsou came in your ass, adding his mess to the mix as he held you close, his arms wrapping around your middle as his body spasmed in orgasmic delight. 

“God, I feel so much better,” Kaminari panted, his cock returning to normal size as he doubled over with hands on knees, his chest rising and falling. 

“That was amazing,” Shinsou panted from behind you, helping to lift you up a little so his cock could slide from your ass hole. 

Your legs were like jelly so you stayed resting back against Shinsou’s body as you caught your breath.

“Now,” you said, looking down at the mess on the floor and on your legs, “how am I going to clean this up?”

As you watched, the cum glowed and slowly evaporated, leaving only Shinsou’s small amount seeping from your ass.

“Oh!” you exclaimed, “that was good!”

“Oh, yeah, forget to tell you about that,” Kaminari said as he turned around and picked his pants up, “it supposedly disappears once the quirked person releases.”

“Well, I wouldn’t mind doing that again in the future,” Shinsou said softly to you, hugging you around the waist once more and kissing your neck.

“Same,” you replied, rolling your head back to give him a kiss.

“Me too, I want a kiss too,” Kaminari said as he walked back over to help you up.

He lifted your body up against his and kissed you, carrying you over to your bed so he could lie you down and help clean you up.

“I’m sure this-” you gestured to him, Shinsou, and you- “can be arranged again.”

~ END ~

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