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ares-would-be-proud · 3 years

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Anon said Is it alright to request some head cannons-nsfw preferably for Reiner being in love with his precious step-sister? Like he has to take care of her so no one hurts her, and who better to take care of her then himself?

Reiner thinking he's the only man good enough for you, his precious step-sister.

{ Reiner x fem!reader | tw:stepcest, tw:possessiveness, tw:overprotective, tw:overstimulation | smut, forbidden love | modern }

{ "Mars and Venus, Allegory of Peace" 1770 by Louis-Jean-François Lagrenée 1724 - 1805 } (ha! Get it? Bc they're also siblings)

Sees it as his own job to protect and dot on you, not letting you go somewhere alone without him by your side, keeping an arm around you at all times.

Dotting in the way he never forgets your favourite snacks each time he goes to the store, takes over cooking duty when your dad and his mom go out, makes sure you're sleeping and eating well.

Being skeptical of your friends, and making his own friends get on edge if their eyes happen to stare at you for a bit too long for his liking.

Bertolt never meets your eyes because of that, even Annie just glues her eyes to her phone whenever you walk in the room.

Will literally intimidate people from even thinking of approaching you by his presence alone, you could safely walk anywhere anytime with him by your side.

And yet, with you he melts at every flutter of your eyelashes and twirl. Becoming putty in your hands with every soft touch and small peak you give his cheek.

His brain almost stops each time you smile.

And while to everyone else it seems like he's just an overprotective big brother, behind closed doors it's another story.

His hand trailing up your thighs under the dinner table while his mom tells you about her day.

His lips kissing down your neck whenever you wear that low-cut top, hands going under the fabric and tugging down your bra till your breasts spill over them.

Turning a deaf ear to your protest's about being late to your friend's house, his attention solely on sucking marks down your chest before taking a nipple between his lips and sucking while flickering the other.

By the end of it, you had to change into a long neck shirt from the amount of hickies and marks he took his sweet time leaving behind.

Is the type to take you with him places, his own personal cheerleader.

Loves making you call him big brother, even if you weren't younger he'd still demand it.

I say "demand" but in reality he's just pouting with puppy eyes.

Since your dad married his mom, he was smitten the day he saw you at the wedding.

Oh and he will literally buy you anything if you play your cards right, even if he goes broke.

Really easy to manipulate if you're willing to play the role of the cheering sweet little sister, his heart easily swaying with the sway of your short skirt, throat going dry at your honey filled voice calling him the best big brother.

Really really wants to take care of you.

Like really, will find excuses to let him take care of you and do stuff for you.

Although nothing comes without a price…

Let's just say what's normal sex for him is overstimulation for the normal person, he has insane stamina

And his cooing for you that you can give him another orgasm, just one more.

You both could be sitting on the couch, watching a movie you've been wanting to watch for a while, and he will pop a boner because the way you giggled at a scene was really adorable-

Even while knowing that his mom was just a room away—fixing both of you some dinner in the kitchen—it didn't stop your step brother from trailing his big hands up your legs, squeezing the plump of your thighs before pulling at the hem of your shorts, an intense stare in his eyes.

"Come here" he says while patting his thighs, "really missed you baby, wanna feel you against me."

Coaxing you into giving in, not wait for a reply before letting his hands do all the work to sit you on his lap. Burying his face in your neck as his hot breath tickles your skin, almost whining about how tiring today was while his hands rub circles on your back.

You don't miss the curving of his lips when he asks if you could kiss it better for him, make your big brother feel better.

His hands start trailing up and down your back instead, feeling the softness of your shirt, the curve of your ass, circling around your waist before going up again, adding just enough pressure to loosen any tense muscle you might have.

You try not to give in despite his coaxing, mouth in a frown as you stare at the remote still clutched in your hand, the sound of the movie you were watching still playing in the background almost mocking you.

"Reiner can't this wa-" you try to brush him off but the rocking of his knee between your legs shuts you up, making your grind back against them to get more friction as you press your thighs together.

Eyes glossy as your brain gets clouded by the pleasure, your older brother bouncing you on his leg till your toes curl and mewls escape your lips.

You hear him shushing you, murmuring how your step mom might hear you, only to grind against your dampening shorts faster.

The knot in your stomach gets tighter and tighter as you get closer to the edge, biting down on his shoulder to muffle your moans, your own hips pushing back against him.

His arms get a firm hold of your hips, stilling them as he stops his own leg too, mere seconds before you get that final push.

"Want your brother to make you feel really good? Want me to take care of you huh?"

You quickly nod without thinking, aching for any sort of relief. He rewards you with a kiss, slow and gentle as if you're some delicate soft thing he needs to pamper.

And to him, you are. That's why he took you to his room despite the growing urge to push you against the nearest surface and ram inside you,

No, your big brother would never. He sees it as his duty to protect you from everything and so it follows that he wouldn't settle for less than a soft bed and a pillow under your back.

That's why he tucks you against him the second you get on the bed, his back to the headboard with you sitting between his legs, back against his chest.

His hand slipping past the elastic band of your panties, fingers painfully slowly moving up and down your slit before parting your lips.

Your back arching when they start toying with your puffy clit, rubbing circles around it and flickering it till your soaked panties start clinging to your wet pussy.

Brain turning into mush when his fingers shove into your sopping hole, the faster he goes the louder your whimpers get as his thick fingers thrust in and out.

His other hand put enough pressure against your stomach to keep you in place when your thighs began to quiver, the more you squirm in place when his thumb presses down your now swollen clit the more your back rubs against his hardening cock.

"Fuck- just like that." Groans slip past his lips with each roll of his hips against your ass, precum starting to seep through the fabric of his pants.

He's as desperate as you are.

It's not long before he has you creaming on his fingers, watching you unfold and shake before gushing against his hand. He slowly pulls his fingers out as sticky lines cling to them, looking at you panting with your legs still shaking, before shoving them back in and fucking your own mess back inside you.

You let out a strangled scream at the punishing pace, head lolling to the side from the overstimulation and mind going completely blank.

All sorts of compliments and soft words leave his lips, praising you as he forces a second orgasm out of you, having you turn into putty in his hand.

Too much- it's too much, you're too sensitive and barely able to form coherent sentences, a shaking quivering babbling mess, too high in pleasure to notice the tear stains down your cheeks. Attempting to finally catch your breath now that your brother is satisfied.

If only.

"You're ready for me sweetheart?" He says, voice laced with anticipation as he pats your messy cunt, making your knees buck. "Ready for your big brother's cock filling up this pretty pussy?"

One second he's tugging your soaked paintes to the side, cold sending shivers up your spine, the next he's tapping the head of his cock against your hole, pushing up your slippery folds till the tip rubs against your sensitive clit, making more tears collect clouding your vision.

Cock throbbing at just the idea of your gummy walls squeezing him inside, making his thrusts stutter and grip almost bruising against your skin. Filling his room with the sound of skin on skin slapping as his hips slam against your wet thighs

The image of your knees folded against your chest till the base of his cock disappears inside, reaching impossibly deep till he's kissing the entrance of your womb before slamming against the rough patch of skin that makes you drool.

It's driving him crazy with lust.

And despitet how much he wants nothing more than to fuck his cum inside you, fill you up and plug you with his cock, really make sure that you're tied to him for life and no other man will even think of looking your way with, he will still pull out.

Sprouts of cum rushing out his swollen cock as he pulls out with a wet pop, whie ropes painting your stomach and chest instead, going down your thighs and the curve of your ass before staining the sheets.

Just have your brain swimming in milk and honey as you take in the afterglow, he'll run soothing circles up your thighs while you doze off to the rise and fall of his chest.

The scenes play out in perfect order in his mind. Yeah, just the thought alone is enough to make him want to go for three rounds at least till he's cumming dry.

"Alright, spread your legs more for me, yeah just like that."

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