Izuku Midoriya Does the Multiverse

1- The Adult Universe Where Deku is Single, and Eri is Horny

Eri's 18th birthday felt empty. All her good friends were there. Katsuma and Kota were cheering her on and sheltering her with gifts and candied apples. Her adoptive father Shouta Aizawa ruffled up her head of long, silver hair. Even pro-heroes she knew as a child showed up to congratulate her on becoming a woman. Mirio, Tamaki, and Nejire all came to give her gifts and hugs. But something was missing.

And that something was her most favorite hero, the one who saved her all those years ago from a life of slavery and abuse. Izuku Midoriya, otherwise known as Deku.

He knew it was her birthday, but he was scheduled on patrol and had run into a drug bust with his good friend Ochako Uraraka, also known in the hero world as Uravity.

After quickly taking down the villains and leaving them to the police that just arrived, Uravity noticed her friend didn't appear very happy that day. She assumed it wasn't the gang they just fought.

"Something on your mind, Deku?" She asked.

Deku dropped out of his stupor and turned toward his partner. "Oh. No, not really. It's Eri Aizawa's birthday today and I was hoping I could get off early enough to see her."

"Oh that's right! She's 18 now, right?" Uravity asked. She looked around at the scene, picturing the paperwork she and Deku would have to do before calling it a day. No doubt, he'd eventually be released from his shift late.

"Tell you what, I'll cover for you and do all the paperwork at the agency while you go on ahead and wish her a happy birthday from her aunt Uravity. Deal?" She offered with a gracious smile.

Deku turned back to her with his own smile. "Thanks, Uravity. I owe you one."

She waved him off. "Worry about that later. Go see your number one fan!"

Uncharacteristic of him, he gave her a big hug before launching right into the sky. Uravity smiled, rolling her eyes as she watched him activate the Quirks within One For All to propel his body through the air over the rooftops.

He made it to the Aizawa residence within thirty seconds, landing in the street and running to the door right as it opened up. The man put on the brakes, stopping as Mirio, Tamaki, Nejire, and even Shouta Aizawa were walking out.

"Deku." Eri's father addressed him with his usually unimpressed look. He didn't say much else. "Eri went off to the park just two blocks from here."

Deku furrowed his brow. "By herself?"

Shouta shrugged. "She said she wanted some time alone. Her friends left just a few minutes ago and we're just headed to the bar. You can join us if you'd like."

Deku frowned. Feeling defeated, he considered the offer until his phone pinged. Curious, he opened it to find a message from none other than Eri.

"Hey Deku! I left my Dad's place. Down at Tulip Peak Gardens if you wanna catch me :)"

"Huh. That's a funny way of saying it." He thought. "Maybe I'll catch you guys in a few minutes. She just texted me and said it's okay if I come say 'hi'." He explained to the older hero.

Shouta narrowed his eyes. "She's not my little girl anymore, if she ever was. In fact she's been very independent lately. She does this sort of loner thing often. Maybe your company can be good for her." He excused Deku and walked off to join the others.

With that permission granted, Deku raced off toward the gardens where he spotted her silver hair waving in the dim light of the street lamps and nearly full moon.

Hearing the sounds of electricity, wind rushing, and boots screeching on the pavement, she smiled and turned around to face her hero.

Deku returned her smile. Her arms were crossed, as if she might have been feeling chilly, even under a large wool sweater that covered her neck. Below it just looked like a pair of black leggings and small boots, similar to the ones she wore as a child. Although now, she was far from those days.

"You're late." She cocked her eyebrow up at him.

Deku chuckled. "I would've been later had Uraraka not covered for me at the end. She wishes you happy birthday, by the way."

Eri nodded. "Be sure to tell her I said 'thank you'."

The green-haired man of 28 smiled. "Will do. Now what are you doing out here all by yourself? You look a little cold."

The young woman's smile dropped slightly. She wanted to tell him the truth. But not now, not all at once. "I've been doing this every night for a while now. Just to think."

"To think?" Deku asked. He rested his bare elbows on the metal railing of a small bridge overlooking the pond that centered the gardens.

She cleared her throat and looked up at her hero's face. As she grew older, her love and appreciation for the hero Deku grew too. And now on her 18th birthday, she felt it was the right time to tell him. But how?

"Mhm…" She answered, biting her lip.

Deku didn't notice her staring, instead paying attention to the scenery. Even with the sun having set, it was a beautiful sight. "This is a nice place to think." He didn't want to pry, so it was her turn to do it.

"I've been thinking about what got me here. How you and Mirio and Sir Nighteye risked everything to save me from the yakuza." Eri reflected. "And for a few years now, I…" She gulped and looked into his emerald eyes. He listened so intently, smiling.

"D-Do you wanna… Do you wanna go get some hot cocoa with me?" She asked him.

Deku, being as dense as ever, smiled and nodded. "Sure. I'm already here anyway. That should warm you up."

Eri nodded along nervously, disappointed that he hasn't quite gotten it. But the hot cocoa does sound good regardless. She was happy doing anything with him.

He offered to carry her to the nearest shop and she accepted, rather quickly. The young woman cuddled up to him as he lifted her up like a bride. Dark tentacles pulsing with a green energy emerged from his arms and pulled them away.

As they got to the local coffee shop, open late and serving the best hot cocoa Deku had ever tasted, they sat down at a small booth and smiled at just how good the warm drinks were in that moment.

Minutes into their comfortable talks and drinks, Eri decided to kick her flirting up a notch, to really get it through her hero's thick head. Questionably, she raised her ankle, sliding her foot from her boot and brushing it up Deku's leg, finally resting it up between his thighs.

Deku quickly gulped his drink and froze for a second. Eyeing the 18 year old girl across from him, whom he had known since she was six.

Eri gave a rather smug grin, sipping on her cocoa as her foot, wearing nothing but her thin black legging slipped up against the crotch of his pants, and pressed.

"E-Eri?" Deku coughed.

She said nothing, turning her head away as she continued to sip. Her foot teased him, pressing down again, flexing her toes one at a time. Her smile grew as she felt the skin beneath his pants begin to harden.

"Eri, stop." He hissed.

Now she felt her confidence slipping fast. Her foot dropped and climbed back into her boot under the table. He reached over and placed his hand on her arm. "Can we go outside?" He asked.

Her smile disappeared and she nodded. Without a word, she stood up. He joined her and opened the door to the outside.

As the girl rushed out and looked to not stop, the hero grabbed her arm on the street. "Eri."

"I'm sorry…" She bleated.

Deku sighed. "It's okay, sweetie. Just… What was that about?"

She refused to make eye contact. Her arms folded as she was turned from him.

"Please tell me what that was about." He insisted.

Groaning loudly, she turned back to him and shouted. "I like you, okay?!"

He leaned back in surprise. "Like…"

"Like." She assured him. "Look, Deku, it's my birthday and I want you."

Now the man's face grew red. "H-Huh?!"

Eri rolled her eyes and lifted her sweater. The final nail in the coffin. Deku's jaw dropped to the ground seeing her wearing nothing under her sweater besides a set of lingerie as red as her eyes, teasing her curves he had never noticed until now. She dropped the sweater to cover herself again, staring frustratedly at him, with a hint of pink in her own cheeks.

"Don't know how to make it any more obvious for you…" She muttered.

Deku grabbed her shoulders. "Eri… I have no idea what to think. This doesn't look right…"

She sighed again, looking down. "Then don't think. Just take me to your apartment and don't think. Do anything but think."

He gulped. But she was opening up to him in such an enticing way. This wonderful, beautiful, young woman. She really wasn't the same girl he rescued all those years ago. Not anymore. But to pursue this would change everything.

"Your father is going to kill me." The green-haired man sighed as he picked her up again.

Eri giggled. She didn't care what the consequences would be. It was her birthday, and she wanted him. To make this official. To confess her feelings and give her hero everything he had been missing.

The hero carried her off to his apartment across the city, opening the window on the high rise, they climbed inside to his bedroom in the dark and stood up straight. Their faces not even a foot from each other, besides the height difference.

He reached out, brushing his scarred knuckles against the side of her face, pushing strands of silver hair over her ear. "We don't have to do anything… We can just talk…"

"I suck at talking to you. And you suck at reading the room." Eri said bluntly. "I want you…"

Once again, in the warmth and privacy of Deku's apartment, Eri lifted her sweater, over her chest. Her body was truly that of a goddess. Every curve filled out as far as it could go for a physically healthy woman of her age in the hero course at UA. Her breasts strained against the straps of her red bra, reminding the hero of Nejire's globes. How much was she hiding under this sweater?!

And her hips. She swayed them slowly, back and forth like a serpent ready to strike. Deku's heart skipped a beat. His mouth began to water. For a moment, he felt his Quirk kick up and spark.

Without a word between them, his eyes watching her every move did not protest as she pulled the oversized sweater all the way off of her head and arms. Now she stood before her hero in a lingerie she picked out just for him.

Ignoring the butterflies in her stomach and the warning signs in her head, her lust went autopilot and pointed her finger to his bed. "Sit."

Completely hypnotized, and ignoring the same thoughts, Deku obeyed his much younger succubus and sat himself down on the edge of his queen-size.

Eri strutted over, swaying her hips to keep his attention as she made her way between his spread legs until she stood right up against him. "T-Touch me, Deku…"

Deku reached around her and ran his hands up and down her sides. "Tell me if there's anything I'm doing wrong." He requested as his fingers hooked into the elastic of her thong.

Eri shuddered. His hands were everything she imagined they would be against her skin. She loved this attention on her body. To stand up, she rested her hands on his shoulders while his fingers began pulling fabric down her long, cream-colored legs. Her entrance exposed to the warm air of her hero's bedroom, her satin folds glistened in the dim light before him.

Little by little, he peeled off more and more of her lingerie like a Christmas present, but with the tantalizing speed of an artist dragging his brush on a canvas to create a masterpiece. And this masterpiece hummed his name, obsessing over his scarred hands on her naked body.

Slipping out of the leggings on her own, Eri pushed him on to his back and began to unbutton his pants, pushing up his shirt and kissing his visible abs. But then, as she started working his jeans off, he stopped her. "No no. It's your birthday today. I gift you."

His voice sounded so soft, yet very commanding. Her nether region ached. And it was exactly what they both wanted. She wanted to strip him first, but he prioritized her needs first. Classic Deku.

He laid down, silently beckoning her to climb up. Eri obeyed her hero's wishes and crawled over his big, muscular body. She gulped and halted for a moment, unsure what to do next. That was when his hands gently grabbed her hips and pulled in to his face.

Her heart clenched. Her hero and her crush was finally going to pleasure her! All those nights masturbating to the fantasies of Deku taking her in every way a man takes a woman…

Eagerly, she moved her legs, spreading them over his shoulders. Her eyes made contact with his. Seeing no signals to stop, she lowered her clit over his mouth, and he began to lick.

It tickled at first, but once his tongue got in deeper… "O-Oh! A-Ah~!" Eri moaned out. Her head threw itself back and her spine arched. Her legs clenched up for a moment as Deku gripped her mighty thighs. But he didn't seem to mind the pressure.

"Yes, Deku, yes! Right there~! Right th-there~!" She gasped and sputtered, holding herself up while he ravished her. His tongue flicked up expertly and it gave her a question to ask after the fact. But right now she relished this moment, audibly worshipping the man that saved her as a child. His momentum kept up long enough and she orgasmed hard on his face.

Her legs tightened during climax as a small trickle of fluids splashed Deku's face. He loved the noises she made and just how open she was to him. He promised to gift her on her birthday, and she received well. The orgasm in his mouth was not a gift he asked for in return, but gladly accepted as he sucked her clit a little while after to clean up whatever he could.

Once her trembling had ceased and most of the fluids licked up, she climbed off of him and frowned as the post-orgasm clarity finally hit her. But before she could say anything, Deku rolled on to his knees and kissed her.

Her first kiss with her hero and it was literally right after he had her pussy shoved into his mouth. For some reason, it only made the moment that much hotter. The flavor wasn't half bad either. As she pushed her lips against his, they parted together, and tongues slid in between each other. He definitely had experience here as his tongue wrapped around hers several times, twisting and pulling and sucking like a professional. Nothing that she would have guessed from a hero like Deku. And yet he did just eat her out.

After a few minutes of sloppy make-outs, they broke apart for some air, looking into each other's eyes again in the moon light.

"Your turn." Eri insisted, shoving him back down on the bed. She scrambled down his legs and yanked his pants off impatiently. She wanted more. She wanted to please him like he pleased her. She wanted him to want her, as much as she wanted him.

Deku silently obeyed and helped her push down both his pants and his boxers, leaving his very erect length standing up, blocking her view of his face. Eri stared at it hungrily and completely forgot he was still wearing a shirt as she grabbed the base of his cock and began to lick the top half like a melting ice cream cone.

Because of her inexperience, it felt a little awkward. But it was overshadowed by her enthusiasm. Her determination to pleasure her hero alone made him grunt. Seeing her enjoy the salty taste of his shaft. Her eyes were closed as she licked the based to the tip. Then he bared his teeth as she took his tip in past her lips.

Deku felt her tongue swirl the girth, the circumference of his penis as her lips suckled the tip, slowly bobbing up, and further down. He wasn't any bigger than your average male, but he was impressed, and happy to see his young sexually pent up partner take his length down her throat. Her eyes open with half of his cock in her mouth and looked up at him with admiration.

"W-Wow…" He groaned. "S-So hot~"

Electrified by his praise, she swallowed his length again to the base, fondling his testicles in her hand. Her other hand snaked up his abs, feeling the crests and valleys across his chest and stomach.

She did everything for him he ever wanted in a partner, and he rewarded her with a thick, warm orgasm in her mouth. Eri moaned. In hindsight, wasn't the greatest flavor, but in the moment, it made her horny all over again and she swallowed it all without a fuss.

Pulling off his length with a pop, she climbed up his body, resting her bare butt on his thigh and leaving a nice, wet spot there too, she mashed her lips against his once more.

They made out again for several more minutes, releasing every bit of tension they could like horny teenagers. Then after a while their frantic, sloppy tongue battles became softer pecks and lip massages. They let each other breathe and watched each other's faces as their kisses slowed down to every few minutes. Her body cuddled up against his, fitting perfectly in his form.

The time grew much later. They had been like this for two hours now.

"Eri." He addressed her.

"Mm?" She asked, yawning.

"I don't think we should pursue anything together after tonight…" He said.

She sat up and frowned. "You know we won't be able to go back to who we used to be."

"Yeah but that doesn't justify what I did. We have to forget this." He told her.

"Izuku Midoriya!" She yelled his full name. "You did nothing wrong! I started this. I wanted this…" She sighed, lowering her head.

He exhaled. "Can I tell you a secret?"

Her eyes met his, but she didn't move her head.

"I wanted this too… Yes I did this because you asked for it and it's your birthday but… All my friends are dating and getting married and I wanted that too but I was so focused on my work I thought I might have missed my chance." Deku explained.

Eri nodded. "Well, I guess for tonight we both helped each other out… But I don't see why we should ignore it."

"Because you deserve someone your age. And I just need to keep being a hero, even if it means I miss out on some things." He sighed.

"Things like what?" She asked.

Deku reclined back in the bedsheets. "Love."

Eri did not hesitate to lay down against him, her breasts squished up against his pecks. "I'm a big girl now. I make my own decisions on who I sleep with. So here's my proposal: You give me this, and I'll give you love."

Deku chuckled. It seemed so simple and innocent, but that's not how it works. "I can't see us being together."

"Then we'll keep it private, for now." She offered.

He thought for a moment.

"Can I move in with you?" She asked. "Please?"

"Now that, I'm not so sure about." He admitted.

"No, no, my dad won't even know it! I'll just tell him I found an apartment with some friends." Eri suggested.

"Lying to Aizawa? Yeah I am dead." Deku frowned.

"I just want to stay like this, okay?!" She snapped and held on to him tightly.

Deku sighed. "Fine. At least for tonight."

Eri's smile picked back up and she kissed him again. Through their kiss, she scooted her rear just above his penis, which had been regaining its stiffness. She then began to tease him, rubbing her entrance with his tip.

The green-haired man pulled away and looked into her eyes. "You really do want me…don't you?" He asked.

"So badly…" She moaned as she kept up the rubbing.

Deku smiled. "I want you too. And tonight I'm going to make you feel special, birthday girl."

Her hero grabbed her sides and rotated them both, with him on top and his length lined up with her opening.

Eri hummed. Biting her lip, she stared into his eyes. "Take me, Deku…"

"I'm going to give you a good fucking for teasing me earlier. You want that, Eri?" His new dominant tone sent a shiver down her spine, and her folds grew wet once more with anticipation.

"I do~" She answered.

"You want your big strong hero to fuck you on your birthday?" He asked. A faint glow of cyan could be seen in the emerald of his irises.

"Yes, Deku~! Please…" Eri moaned.

"Ooh, I like it when you beg. Are you a slut for your Deku?" He asked.

"Yes~!" She shouted.

For a moment, he hesitated, slowly pushing the tip of his cock past her lower lips.

She purred, but wanted what he promised. "That's not what a good fucking feels like, hot stuff."

He grabbed her shoulders and began to stuff his tip inside of her walls. Eri grunted in pain, then her eyes rolled back as her tongue hung free from her mouth. "Ohh~!" She cried out.

Letting out a hiss, Deku squeezed his eyes shut. "Aw, Eri… You're so tight!"

Eri herself was completely unable to form words. She had dreamed of this moment for years, but nothing came close to the actual feeling of her much older hero's cock filling her insides. Pleasure and pain clouded her thoughts as she unintelligibly babbled and moaned his name. The only coherent words he could hear.

Letting them both get the feeling of their bodies connected at the hips, Deku pulled back out over halfway before pushing forward again, meeting her hips. She hissed, before melting into the bed with a goofy smile on her face that reminded him of Nejire.

Deku shuddered, ignoring the thought and refocused on the gorgeous younger goddess beneath him. He repeated the action with his hips, slowly beginning a rhythm for them both.

Eri enjoyed the slow pace, but grew impatient again. "I want Daddy to go faster."

The pet-name, hinting at the taboo circumstance with their age difference and history… it made Deku flare up. It turned him on more than anything before and a beast awakened.

"Now sweetie. You will take your fucking however I give it to you and you will LIKE IT!" He boomed as he impaled her down to her womb.

Eri screamed in delite and arched her back, which only gave Deku more room to further rearrange her guts.

His tempo increased drastically. She gasped with every thrust, biting down on her knuckles with a senseless smile on her face.

His cock filled her walls perfectly as she grew more and more accustomed to his size. The only sounds heard was skin slapping skin, the masculine low grunts of Deku, and the higher and much more audible whines and moans from his younger partner.

As his tempo increased, Deku leaned down, going even deeper as his mouth made contact with Eri's open lips. Too messy to properly kiss, they allowed their tongues to dance together in a slimy embrace that made him hunger for her.

The bed creaked as hips met rapidly. Both were reaching their limits however. The silver-haired girl, freshly 18 looked up at her lover's eyes.

"C-Coming….close, Eri…" He huffed.

Her legs wrapped around his waist, holding him down. She made it clear that she wanted him to finish inside her, to make the connection strong. Unbreakable.

Deku had his concerns, but seeing Eri in this position… She wanted this. And that gave him the confidence to groan out like a lion giving a dominant roar and blow rope after rope of hot white semen deep within her.

Seeing him over his edge finished Eri. She came not long after, soaking his crotch with her juices. Their mutual orgasms rode out for a moment as Deku kept his pace until the very bitter end. Their reproductive organs now sensitive, he slowed down, addicted to the humming sounds of the beautiful girl beneath him.

Deku inside of her, having finished inside of her. Eri was ecstatic, but tired now. Disappointingly, he pulled himself out and watched his good work before him.

Eri stayed sprawled out on his bed, covered in sweat and lost in pleasure. She still had that same derpy smile across her face and it made him chuckle. But down at her entrance, he noticed his seed leak out a bit. The hero quickly stood up and grabbed some toilet paper from his master bathroom.

She sighed as she felt him clean her up, then felt him climb back into the bed next to her, pulling the blanket over their nude bodies. And he wrapped her in his arms, and pulled her body in against his own. Eri snickered as she felt his now flaccid member slip between his legs and her butt.

Using the last of her strength, she pulled away from him only to rotate and face him now. They kissed one more time. This one much more chaste and gentle, truly feeling it out.

"Goodnight, Eri." Deku told her softly, pushing some rogue strands of her long glistening hair from her face and behind her ear.

"Goodnight, my hero…" She sighed happily and drifted off to sleep. "Best birthday gift ever."