Yandere x Reader Oneshots & Headcanons (ongoing)

Yandere! Monster Headcanons [Arranged Marriage]

You find yourself kidnapped into a half-breed family of monsters and humans, for the purpose of an arranged marriage. Luckily for you, the groom is their only pure human, terribly handsome and charming. You'd perhaps appreciate him more if your eyes weren't glued to his monstrous older sibling...

Content/TW: female reader, monster smut (NSFW), reader is a shameless monster hoe

You always imagined such kidnappings to be of theatrical intensity, being scooped up against your will as you scream and flail your arms, longing for a savior. The affair itself felt more like a formal summoning. Mysterious men appeared before you and merely announced that your presence is required, unfortunately without the choice of refusal. Might as well. You packed necessities under their polite supervision and now you're sitting at the table, facing multiple strangers who are casually enjoying their lunch. One of them, the head of the family apparently, explains that half-breeds are in a rather sensitive place when one considers human and monster politics. Thus, every now and then, they will do whatever it takes to strengthen their bonds and show good intent towards both species. This time it's an arranged marriage with a fellow human.

Why you, in particular? No need to concern yourself with intricate details. What matters now is that you are to be married soon and your groom is right here, enthusiastically waving in a welcoming greeting. You scan his features and can't help but agree with the family: he is, by all definitions, a conventionally handsome man. His face is carefully chiseled in most elegant, yet masculine features. His voice is confident but warm, and you can tell by the flock of servants hovering around that he's rather popular. After the luxurious meal he guides you around the imposing home, showing you to your room and briefing you on future responsibilities. Caring, attentive, and several other checks that you can easily mark in his favor.

Yet one vital aspect has been omitted. The prince's mesmerizing beauty was rather swiftly discarded once you realized the presence of his older sibling, a pure monster blood towering above everyone else and idly eating his food, uninterested. You managed to hide your blush in time, but you couldn't help throwing curious glances. Might've been easier for everyone involved if they handed out 'monster lover' badges. Alas, you weren't prepared to ever be faced with the choice.

The next day you're awoken by the murmur of diligent work, as both servants and family pace back and forth about their plans. You sneak your way out - since nothing is yet expected of you - and wander until you find your intended target: the beastly sibling is polishing a bizarre weapon you don't recognize in what seems to be a storage room littered with battle memorabilia. He notices your presence and acknowledges you with a bored nod. You ask whether you may observe his current activity and he looks up at you, raising an eyebrow suspiciously before agreeing. Why would you care? Certainly there's more entertaining things for you to do as a soon-to-be bride.

As you listen to his little stories from the battleground (hardy monsters like him are better off fighting, not socializing), you have to pat your cheeks in desperate attempts to cool down your burning blush. "H-how comes you don't have a partner?" You mutter, almost feverish. "Not interested. Plus, who would dare to marry me?" he jokes, focused on the sharp item in his clawed hands. There it is. Hesitation and diplomacy out the window, you rearrange yourself, smoothening your clothing, and whisper: "Well, if I had to choose, I would've preferred you as my husband..."

Once again he stares at you bewildered. Have you come here to mock him or something? A frail, pretty human like you, about to tie the knot with his stunning younger brother, showing up here and behind everyone's backs to openly flirt with him. Ridiculous beyond comprehension. His skin is thick enough to not mind such twisted humor, so if anything he's impressed by your audacity. Alright, if you've come for jokes, he'll comply. He places his weapon down and fully turns to you. A little scare might teach you to be more respectful with your in-laws next time.

With a speedy movement that's barely registered by your eyes, he pushes you on the floor and pins you by the wrists, lowering himself uncomfortably close to your face. "If you tease me like this, I might not be able to hold back." He says as he forces himself to smile extra hard, revealing the multiple rows of fangs. "In fact, I can't guarantee you'd make it out of here alive." Hopefully he isn't going too far with his tactics. He senses your frantic breathing and is about to apologize for continuing your prank, but you blurt out in a daze: "Yes, please! I've been thinking about it ever since I saw you." You're panting for dear life as your face is turning a deep shade of red.

Uh oh. Now this is awkward. You weren't...you weren't kidding. For a moment, he freezes in place, trying to recollect himself to no avail. Fucking your brother's future wife in a storage room in the middle of the day feels like poorly written erotic romance. Then again, he can't deny the sudden urge overwhelming him at the mere thought of it. You're squirming underneath him, gliding your legs across his now obvious bulge. His common sense is hanging by a comically thin thread, and he can almost hear the instant when it snaps. Thankfully some leftovers of sanity must have remained in the back of his mind and his lustful grunts while pounding you are kept low enough that no one is notified of your horny deeds. Shutting you up was the bigger challenge.

"Is this too tight, miss?" You spin in front of the mirror and the servant readjusts the lace corset adorning your wedding dress. You have to hold back your yawn. Downright shameless and perverted of you to daydream about your monster boyfriend while trying on bridal gowns, but it's not like you agreed to it to begin with. You were kind of hoping to discuss future dating prospects post-intercourse, but someone had been looking for you shortly afterwards and you struggled to regain your composure. Your scary-looking suitor shooed you away with the promise of a reunion.

Before the servant can reach for the next dress, you both jump, startled by angry shouts coming from the hall. You rush outside to witness the older sibling standing before the head of the family. The wrathful threats were coming from the much smaller half-human. "Y-you can't just decide like that!" He screams. "Of course I can. You're welcome to fight me for it." The monster sibling flashes a smug grin. "Can anyone here defeat me?" His question is met with silence. He spots you and gestures you to come towards him. "I'll say it one more time. Find another human for my brother if you have to. This one is mine." He ends his sentence in a low growl, and you shiver underneath his heavy arm. Boy, what a time to be alive.