Pls help ive been kidnapped and being forced to write against my will im currently being held at

High school DXD - To Protect My Sister! - Serafall Leviathan just found out that some boy in Kuoh Academy was flirting with her little sister. Her overprotective nature causes her to seek him out and scare him away. This would be easy. After all, what can a lowly human do against one of the Satans? - Instant Loss, Power Imbalance, Dubious Consent, Mind Break.

Something terrible has happened! One that could bring ruin to Earth, Heaven, and the Underworld. A crisis that threatens the lives of all beings in the universe! A catastrophe just waiting to strike the ceasefire between all factions and break down the lives of countless beings.

A human was flirting with Serafall Leviathan's little sister.

Serafall is an almost impossibly beautiful girl looking in her late teens with black hair, tied into twin tails, and pink eyes. She's a pretty short girl, standing at 160 cm, she has a youthful and cute face, curves that are practically asymmetrically perfect with her form, and clothing that would look in place in a magical girl convention.

She's wearing a pink magical girl uniform with a hat and a skirt short enough that you can see her panties when she moves. Her tank top is so tight that her breasts bounce around with her exaggerated movements. She also has black fingerless shoulder-length gloves, pink and black striped stockings, and a pair of black shoes with stars on their sides.

Finally, in her hand is a long pink staff with a golden star on top inside a circle, and below that are a pair of bat wings.

She could be described as a weeb or a weirdo for her eccentric personality, always acting cutesy and magical despite magic being widely believed as a myth by humans.

But what they do not know is that magic is real.

And Serafall is not human. No human could live for centuries as she has.

This is obvious right now because she is currently flying through the air of Kuoh Town with a pair of bat-like wings behind her.

Serafall Leviathan is a devil, and not just any devil, she's one of the four Satans, the leaders of the devil race.

Being the Satan in charge of foreign affairs, she's one of the most active devils around, having to go to meetings, arrange trade, and visit the human world on occasion.

Right now though, she's not here as the Satan Leviathan.

No, she's here as the protective older sister of Sona Sitri.

'How could some lowly human even think they'll be good enough for my little So-tan!' The strangely adorable devil thinks to herself as she flies towards her destination. 'When I get my hands on that human, he's going to learn why you don't mess with my little sister!'

Serafall is known by the devils for a lot of things, she's a leader, she's extremely powerful, and she's deceptively cunning despite her facade as a magical girl.

But the arguably most well-known thing about her is that she's a major sis-con.

She puts her little sister above everything else in existence, Sona is well known for being strict, composed, intelligent, and serious. This is why it brings her so much embarrassment that her older sister, who remember is a Satan, acts as her complete opposite.

The Satan Leviathan loves to act childish, often speaking with a high squeaky voice, acting wide-eyed and innocent with anyone she meets, starring in a TV show as the main character, and showering her little sister with so much love and affection that it borders on being an obsession.

Most of the time, it's hard to see Serafall as the big sister.

Except for tonight, because she just heard that a new student in Kuoh Academy was seen flirting with her sister, and even worse, Sona didn't seem to hate the encounter!

Sona had made it clear that only a man that can beat her in a game of chess can attempt to court her but despite Serafall's best attempts (which may or may not include installing surveillance spells in Sona's room), she could not find any evidence that a game took place between her and that boy.

So, with her incredible powers of deduction, she concluded that the boy must've been harassing her sister! And her poor little So-tan must've been too polite to turn him down!

(Note: Serafall Leviathan is known to act irrationally in matters pertaining to her sister.)

She's not planning on hurting the guy, that would be overkill.

No, she's just going to… scare him a bit, and if Sona gets upset by it then they'll just erase his memories, no biggie.

Then finally, after tracking down where he lived (that's not creepy, shut up!), she flies down towards his front door.

The house was pretty impressive, by human standards anyway. A two-floor building with a spacious backyard, the lights were visible from the windows so it's clear that the sole person living here is inside.

She runs her hands across her clothes to smoothen them and with a grace befitting of a ruler, she knocks.

*Bang* *Bang* *Bang*

"Nathan Kastor! You get your ass out here or so help me I'll bring your whole fucking house down!"

See? Graceful.

The sound of a loud thud and stomps immediately comes from inside, moving towards the door.

It then swings open and reveals the boy whose life she's about to scare.

He looked handsome, by human standards anyway, he's tall for his age, and muscular too, and while he looked Asian, he definitely isn't from Japan.

'Huh, doesn't look like much, and I don't feel any power from him, he's just a regular human.' Serafall thought to herself as she surveyed the boy from head to toe.

His eyes look at her in confusion. "Uh, I didn't order a hooker, sorry, I think you got the wrong house."

Serafall blinks once.

Twice.

Before what he said registered and she sputtered in anger.

'What?! Not only does this human try to steal my So-tan, but he has the gall to call me a lowly prostitute?! That's it! He's getting destroyed!'

(Note again: Serafall can forget that not all humans are aware of the show she's in or the fact that she's a Satan whenever she gets overprotective.)

She stomps her foot on his porch, nearly causing it to crack, and points directly at the boy's face. "You! Lowly human! What are your intentions with Souna Shitori?!" She demanded, taking care to use her precious little sister's alias to the human world.

He tilts his head, confused but answering anyway. "Uh, Souna? I guess I like her? I don't know, what exactly are you asking?"

He wasn't aware of who this mysterious (yet sexy) stranger in front of his house is nor her connection to Souna, but he could guess that they both obviously know and care for each other, so sisters perhaps? That doesn't explain the weird getup, perhaps she's just a weeb?…

While Nathan did manage to answer her question, he's caught flatfooted though, so he just answers with the first thing that came to his mind. Yeah, he likes Souna, she seemed pretty cool despite her cold exterior and when he found out she liked playing chess he asked if she would like to play a game with him sometime.

That was their only connection as far as he knows. They've only talked in passing once or twice.

But poor Serafall only latched on to one thing he said.

'L-Like?! Gah! This is a disaster! I have to stop this right now!'

The Satan flourishes her staff, a glow now starts to emanate from the magical weapon. "No! I forbid it! I, the Satan Serafall Leviathan, will stop this travesty right now!"

"Travesty? What the hell are you talking about? And what's with the light show?" He points at the staff. "Like, it's obvious you're a cosplayer or something but why are you in character? Seriously, is this a prank?"

"This is no prank human, prepare yourself, because I'm about to show you why you do not attempt to take advantage of a devil."

A devil?

Satan?

'Is this chick for real?'

Nathan is just a tad miffed right now, here he was, jacking off in his cozy home when some hot crazy chick starts slamming on his door. She starts to spout about Souna, who he barely knows, and is now threatening to…

Well to do something, he just doesn't know what.

He's horny and he's pissed off.

Let it be said that Nathan usually never thinks things through when both of those things are combined.

Serafall then starts to prepare a spell that would surely punish this wicked human. She's not going to kill him, but a little mind-control spell that will make him humiliate himself would be enough.

The light begins to reach its apex, the magic being collected and transformed like she had done it countless times before. Then she aims it at the lowly human.

"You brought this on yourself buster, now just-"

He grabs her by her wrist, disrupting her concentration.

"Eh?"

+/+

"MMMMMMMFFFFFFF!"

The sound of vigorous fucking ensues inside the near-empty house. Flesh slapping against flesh coupled with muffled screams of pleasure make for very erotic music.

Bent over the living room couch with one hand pressing her head face down against the seat and another holding her arms behind her, Serafall could only scream and cry in ecstasy. Her once composed intellect is now muddled and lost in a fog of pleasure as she receives the biggest dicking of her very long life.

Nathan, having pinned down the "Satan", is thrusting his cock in and out of the almost otherworldly pussy. It almost seemed to try and suck him in, the walls squeezing and massaging his member, trying to coax him to cum.

*Huff* "Hah, so, oh fuck… A-Am I good enough for Souna? Damn, I should've gone for you instead!"

"HAAAAAAAHHHH! MMMMMMMFFFFFFFUUUUUU-!" Instead of responding, Serafall just goes through another body-quivering orgasm. She screams her throat hoarse into the cushion, her mouth unable or unwilling to shut up.

The poor girl can't even remember how she got into this position. Her enhanced strength and powerful magic remain unused as her hips instinctively thrust back against his thrusting pelvis. Her perky ass bounced against rock-hard muscles and her thighs tighten as another orgasm causes static in her mind.

His grunts and her screams renew as he goes even faster, the hand holding her head down grasps her undone hair, the once pigtails now messy and frizzy, and pulls her head up, arching her back so she's facing front on all fours.

Her uncontrolled screams now permeate the house, her tongue out her mouth with a thin drool connection to the cushion. Her eyes are hazy and dazed, blankly looking ahead, and occasionally rolling up into their sockets.

She might've come here with the sole purpose of scaring and/or humiliating the boy, but as soon as he pulled her in and started to aggressively make out with her, she'd been too surprised to put up any resistance.

Her devilish strength and powerful magic did not respond to her thoughts, almost as if his touch sapped her of all her powers.

Serafall is a devil, a creature of sin and desire, in any other circumstances Serafall would've been able to break free and punish whoever's attempting to take her. But she's been repressing her desires for many years at this point, too busy with stabilizing the ceasefire between all factions.

In doing so, she inadvertently pent up all of her sexual frustration for a very long time. This wasn't an issue in negotiations or fights because she can easily focus on other things at the time, and even when other faction members flirt with her (*Cough* Azazel *Cough*), she's never been one to let her lusts control her.

She isn't an idiot despite her childish demeanors.

But now?

Being caught so flatfooted by underestimating this human so much, he just slammed past her lowered guard and poked a hole in that bag of lust she's been letting fill up, and all of her repressed desires spill out and take control.

Her mind may say no, but her body is saying "Hell Fucking Yes.".

She couldn't bring herself to resist him when his hands started to grope her.

Her arms just limply swatted when he started to remove her clothes and underwear.

She could only give out weak protests as his fingers and cock give her pleasure unmatched.

'H-How can a human be this good?!' She barely thinks coherently.

She couldn't even remember the last time she'd felt like this.

"Kya!"

A hand slaps her pert ass, causing more pleasure than pain to her at the dominating action.

His thrusts then suddenly begin to slow down until he just pulls his member out from her horny box, she whimpers and her hips instinctively begin to roll back, trying to get his dick back inside. He roughly pulls her hair and turns her head to the side so that he could look directly into her hazy eyes.

"W-Well then, Satan Leviathan was it? Hah, I thought you said you weren't a prostitute? Cuz right now," He gives one strong thrust, a pleasured cry followed immediately after the slap of his pelvis to her asscheeks. "If it moans like a whore, dresses like a whore, and gets fucked like a whore, then what else could it be?"

"Hoh, ah, ah." The devil pants for a few moments, her mind gaining a brief moment of clarity and she glares at the cocky boy. "Y-You… This is… You must be using m-magic…"

She barely makes any coherent words, her lust still at a boiling point.

"I… I w-won't let you…" She takes a deep breath to compose herself, then glares at him with every bit of defiance she has left. "You will… pay for this… ma- human."

Not the least bit intimidated, Nathan just rolls his eyes at her resistance. He doesn't buy the whole "devil" thing but if she's so committed to this cosplay…

Quicker than she could react, he flipped her onto her back by her hips, Serafall only being able to yelp at the sudden action. He then grabs her ankles and pushes them upwards towards her head until they were right above her fiercely blushing face.

At this position, he's looming over her much smaller body, pinning her down into a completely open position, her arms trapped behind her legs, her breasts slightly squeezed together by her knees, her wet pussy fully exposed, and his dick pointing right at it.

Serafall pants under the boy's smoldering eyes, feeling very small and helpless despite having the strength to break away. Her eyes trail down his body, noting that he looked much better without clothes on before finally settling on his stiff member aimed to penetrate her again.

Her eyes widen as she fully takes in its size, despite having already felt it inside her, it looked much more intimidating now from this angle.

"Get ready little devil," Nathan growled seductively. "I'm about to fucking break you."

Pupils dilate in excitement and fear as Serafall's breath hitches.

"W-Wait-"

And with a mighty thrust and a loud squelch from the devil's dripping pussy, Nathan goes balls deep inside Serafall Leviathan.

There was no scream.

Just the wide open mouth of a mind-broken devil, tongue leaving her mouth without control, her pussy gushing with her liquids as she reaches a climax unimaginable by normal human standards.

"Fuck! You got tighter! You must love being put in your place like this."

She doesn't respond, she can't respond.

Only the moans, squeals, cries, and screams of pure ecstasy meet his words, her entire body thrashing under his hold but unable to escape. She's trapped under a lowly human boy, being fucked into oblivion.

Her pussy squirts, again and again, her nigh limitless stamina making sure that she never passes out, that she cannot escape this cycle of bliss.

If Serafall was still coherent, she would've thought that this must've been what heaven feels like, as blasphemous as the claim might be. Her devilish nature had already decided for her, she should submit, she should obey, and she should stay like this forever.

She just wants more.

More!

"M-MORE! FUCK ME MORE! AAAAHHHHHH!"

And he keeps giving.

*Grunt* "As you wish Ms. Leviathan."

Like a tireless piston, he keeps thrusting his bitch breaker into the bitch below him, unknowingly warping her mind to want this, to want him on top of her every waking moment. Memories of her sister fade into the background as they're replaced with imaginations of being with this human.

Then, without even a warning, Nathan explodes cum into her with a long drawn-out groan.

She screams loudly this time as an unwavering feeling of fulfillment fills her very soul.

Devil birth rates are very low, so low in fact that their race is in real danger of being wiped out. So the thought of having kids is seen as a good thing in the Underworld.

And right now? It sounded like the most amazing idea in the universe in Serafall's head.

The thought of bearing this man's child.

Being his bitch.

This is where she belongs.

Pulling out of Serafall's abused pussy, Nathan sits back on the couch with a satisfied sigh. He just sits down and catches his breath for a few minutes before speaking again.

"Hah, hah, hah. Hehehe, that was… whew, devils really are made for fucking."

"Y-Yesh… Made for phucking…" Serafall instinctively answers.

"Hm?"

Looking over at her, Nathan notices that while she's still conscious, her eyes are still unfocused, like her brain is still not quite working.

"Oh? So you're still up little devil? I still have plenty of rounds left in me if you want…" He trails off.

Immediately, her eyes fill with excitement and she does a perfect split with her legs in the air, her hands grabbing her ankles just like he had a few minutes ago. Jizz spills out from her tender pussy and down her asscrack, creating a wet spot on the couch.

"Yes! Please, Master! Fill me up again! I'll do anything! I'll even make you my king!"

She can't actually do that but at this point, she'll attempt to do everything he asks.

Chuckling, Nathan gets up from the couch and positions himself between her legs again, but this time, his dick is aimed at her back door.

"Well then little devil, guess we have a deal."

How is High School DXD not porn? I swear I remember that show being dirtier than my search history.