Wow! Losing Your Virginity to a Brat! I’m a Secret Shotacon Slut and My First Ever Boyfriend Is a Big Dicked Shota!

Author's Notes:the ghost of christmas shotacon hentai in july possessed me while writing this. sorry.

prompt: Shinya finds out about the weird crush his ‘junior’ teammate has on him… (and then makes up for being a lil mean.)

Haru had... particular and strange tastes. She liked younger guys. Growing up, she had been surrounded by older men who wanted to use her for their own gain. Younger men wouldn’t do that, at least that’s what she liked to believe. They were also sweeter, tried harder, and were just... cute! Though, she didn’t think her tastes applied to... actual kids.

Shinya Oda. Code name “King”. A fifth grader and her technical superior in the Phantom Thieves of Hearts. He had joined a couple of months before she did. He knew how to handle shadows and the Metaverse while Haru was still learning the ropes. The boy was also cool and mature for his age. It was really impressive. However, he was still obviously a little kid. Despite his eagerness to take charge in training Haru and other new recruits, he looked up to Joker. It was like a little brother asking his big bro what to do. He also tended to pout whenever he lost games. Though, he lost so rarely that maybe Haru could understand it.

It made sense why Haru liked him, she guessed. It was wrong, however. Utterly deplorable. She was going to graduate soon! She was practically an adult!

And yet…

“Hey. Hey, Noir,” King called out. The group had just finished a few missions in Mementos and were leaving for the day. He stepped towards the older girl and grabbed onto her wrist. “Come with me.”

Before she could even ask what was up, the subway station faded away into a swirling black and red. Soon, they were back in the physical world. Without a word, Shinya pulled her in a seemingly random direction. The girl’s heart throbbed as she stumbled after the young boy. “Where are we going?” she finally asked.

“My place. We need to talk.”

She swallowed.

Once they were in his room in an apartment in Akihabara, he pushed her onto the bed. Her body bounced atop his Featherman R sheets as she stared up at him with wide eyes. “Shinya-kun?”

“I know you like-like me, weirdo. You’re always super nice to me. Way nicer to me than Big Bro and his friends. I think the only one you treat nicer than me is Morgana and I know even you wouldn’t like a cat.”

“I... W-what? No, I mean... I... I treat you nicer because—”

“You’re also starin’ at me all the time. You cuddle me more than you do the cat. The other girls don’t do that.”

“...”

“So, let’s make it official. You can be my girlfriend.”

“R-really?!” she squealed out only to get assaulted by unadulterated shame when she realized how excited she was at being a little boy’s girlfriend. “I-I mean.”

“Hah! I knew you were a weirdo! It’s okay! I like it! Okay, you know what girlfriends do? They make their boyfriends feel good. So... get to it, Big Tits Sis.”

Blood rushed to her face as he crawled on top of her. “Big Tits Sis?! Shinya-kun, that’s not a nice thing to say!”

“Shut up,” he said. The iciness of his words was betrayed by the shakiness in his hands. Was he excited? Did he feel bad? Haru wasn’t sure but she wasn’t about to try to fight back. “...Let’s just do it. Mom’s not back until late.”

“Al-alright. We can do it,” she whispered. She had never done anything like this before. Her fiance had tried. She didn’t let him. It felt so dirty and wrong to be doing this with her much younger boyfriend. There really was something wrong with her... and yet, she didn’t want to stop.“Shinya?”

“What?” he asked, annoyance obvious in his cute little voice. His hands slowly shifted from her shoulders and slid onto her heavy tits. “...Whoa... Nice. Your tits are so big and soft that I can still squeeze ‘em through your sweater! I’m gonna take them out now, okay?! I can’t wait to fuck these later!”

The girl squeaked as Shinya jerked down her zipper. Soon, her top and bra were yanked up and over her now heaving and wobbling tits. Once again, his little fingers sank into the soft flesh. Even on her back, her breasts overflowed from his now sweaty palms. Clearly excited, the boy roughly groped her flesh. Every little squeeze and jiggle he gave them sent ripples across her oh-so-squeezable body. He huffed in delight.

“Your nipples are hot too,” he mused to himself. The pads of his fingers stroked the puffy and pillowy flesh before teasing the tiny slits that hid her actual nipples. “It’s like you were made to be my girlfriend and slam piece, you shotacon slut!”

His words cut into her deep. It stung and yet it lit her up. She just couldn’t get mad. He was just so cute! Plus, he was her boyfriend. She just couldn’t get mad at her boyfriend. A moan escaped her once the boy hunched over and captured her nipple, or the areola at least, between his lips. Noisily, he suckled around the sensitive flesh. Shuddering gasps and breathy moans filled the boy’s room. His tongue ran sloppy, clumsy circles around the slit before tonguing it in between hard sucks.

Each suck sent a jolt straight to Haru’s core. It felt as if she was being hit with both an Agidyne and a Ziodyne!

With a loud ‘pop’ that echoed across the room, Shinya pulled back... and immediately latched onto her other nipple. His hips bucked against her stomach. Each buck and thrust caused her flesh to roll and wobble once again in his shaky grasp. Haru squirmed atop his bed. Her head thrashed from side to side and messed up her fluffy curls. More moans filled the hazy air. Her own hips rolled and bucked behind the boy.

Pulling away with another pop, he sneered as he stood up on his knees. She swallowed back a whine once he pulled his hands away. Then, he popped his fly open and yanked down his pants and briefs to reveal a cock that might have rivalled boys her age. Maybe even adult men!

The heiress gaped at the sight of his now throbbing cock.

“You want it?”

“Y-yes!”

“Beg for it!” he muttered. His hand wrapped around the base of his cock and stroked it. Each stroke pushed and pulled his foreskin back and forth across the head. “Ask your boyfriend all nice ‘n’ stuff to fuck your slutty cunt!”

The girl squirmed as he crawled off of her. He slid between her thick legs and pushed them back. Her knees bumped against her shoulders. Instinctively, she hooked her fingers in the back of her knees and kept her legs in place for him. He smiled. Small, clumsy hands pressed against her puffy pussy through her now-soaked tights.

“C’mon~! I wanna hear my weird, pervy girlfriend say she wants some shota dick! Plleeeeeeease? Please say it, Big Sis!”

She stared up into his big, dark eyes. Warmth blossomed inside her chest as butterflies fluttered inside of it. How could she say no?

“I...” It was as if the words were caught in her throat. It definitely didn’t help that Shinya kept toying with her pussy. His fingers ran along her slit. Up and down. Up and down. Up and down. Down then up... It drove her crazy! Eventually, his fingers dragged up to her clit. Or where her clit would be through her puffy lips. A squeal tore itself from her throat and bounced off the walls as he ground his thumb against her clit. “I! I want my hot underage boyfriend to... to f-fuck me! Please, please, please, Shinya! Fuh... fuck my virgin shotacon pussy!”

He blinked. “Ehhhhh? You’re a virgin?!”

“D-does that bother—”

“That means I’m the only guy you’ve ever had!” he said before gripping onto her white tights. The nylon caught in his fingertips. Small tears formed in the white fabric before the fibers split apart. Soon, a large gaping hole formed in the crotch of her pantyhose. Her equally soaked lilac panties were yanked to the side. “And the only guy you’ll ever have! I’m never giving you up, Big Sis Haru! I love you!”

Then, he rammed his cock inside of her.

Haru grimaced as her hymen was stretched open by a child’s fat cock. A cock he had no right to have. A cock she had no right taking! She was so wet. Yet it still hurt. Hurt was too strong a word. Discomfort probably fit what she was experiencing. Her entrance burned as his hips slapped against hers. Pleasure rang through her body as his cock stroked her virgin walls. She shuddered in delight. Her toes curled inside her tights as the boy continued to clumsily pound her into his mattress.

“I love you! I love you! C’mon! Say it back! You love me and my big dick, right?!”

“Y-yes! I-I love you so much, Shinya-kun! I love my boyfriend’s big fat dick! Please keep going!” she gasped out in between thrusts. The uncomfortable sensation soon melted into pure pleasure. Heat licked at her sweat-slickened skin. “Ah! I-I’m... Mmnnn... I-I’m so glad you’re my boyfriend! I love you!”

Shinya’s head tipped back. His face scrunched up as his balls smacked against Haru’s soft ass. They tightened. Cute moans dripped from his lips as his young cock ground against her virgin walls. It felt so good! It felt way better than his hand or even his pillows!

“I-I.. I’m... I-I’m gonna f-fuck you every day, Big Sis Haru! The other guys... the other guys will know you’re my woman! My stacked girlfriend! Mine, mine, mine! All mine!” A scream of pleasure tore itself from his throat as he slammed one last time into Haru’s willing cunt. Colourless cum rushed out of his cock and filled her to the brim. He shuddered on top of her as his toes curled inside his ankle socks. He huffed and puffed before flopping on top of her, clearly spent. “Hah... Didja cum too? I bet you did!”

Haru bit her lip. No, no she did not. Still, she was more than happy to lose her virginity to her crush-turned-boyfriend. Even if he was a little... rough and crude about it. Should she lie and spare his feelings? He took losing pretty hard usually... But it just didn’t feel right to not be honest.

“I... No. I need more than that,” she admitted. She unhooked her hands from her knees and let her legs hit the mattress. “It was still really nice though, Shinya-kun. Come here, give me a kiss—”

“N-no!” he squealed. His hands gripped her knees and pushed them back against her shoulder. “That’s not good! I-I want you to cum too... L-let’s go again! I’m not stopping until you’re done!”

Haru squeaked as he started to slam into her. It looked like it’d be a long but amazing night.