stepbro somno! pt. 3 - armin
tw: noncon, stepcest, somnophilia, oral (f. receiving), umm general icky, scary big bro armin!
18+
step brother armin creeping into your room late at night while you sleep. he’s quiet, careful not to make a sound as he stands over you, making sure you’re out cold before he dares to touch you. you’ve already kicked the covers off of yourself in your sleep, which makes his job a little easier. it also reveals your nearly naked body, clad in nothing but a thin white tank top and white lace panties.
“are you awake?” he whispers into the quiet room, and holds his breath as he waits for a response that never comes. he runs his fingertips along your bare thigh, which is again met with nothing. you don’t even move your leg.
he waits a few beats, wondering if he should really go through with this. his cock is already hard and leaky in his pants, not made any better with the sight of you laid out before him, looking so vulnerable.
“fuck, get a grip.” he mutters to himself, annoyed that he’s getting cold feet now that he stands before you. he knows what he’s going to do. what he has to do. it’s been months in the making. he can’t sleep anymore, can’t think about anything other than his cute little sister. it’s torture having to see you every day, having to sleep just across the hall and pretend he doesn’t have to fuck his cock into his fist every night to the thought of you just to relieve some of the tension that’s built up. he’s a full-blown degenerate now, reduced to stealing your panties and rutting his hips into his mattress and inadvertently brushing his cock against your ass when he squeezes past you. he has to pretend it’s an accident when he walks in on you in the shower or stumbles into your room when you’re getting dressed just to catch a glimpse of you naked. you think he’s just ridiculously prone to bad timing, but he’s not sure if he can keep you fooled for much longer.
he moves quickly, nimble fingers pulling your panties down your legs and off of you in record time without you feeling a thing. he leaves them dangling around one of your ankles before crouching onto the bed, sucking in a breath at the sight of your now naked lower half, your pussy on display for him in the moonlit room. if he’s lucky, you touched yourself before going to sleep. that would make it easier for him to hurry up and sink his cock into you, but he can’t take any chances. he has to prep you if he’s going to keep you from waking up.
so he tests the waters, grabbing your thighs in his big hands and separating them more. you don’t stir, not even when your cunt is only inches away from his face and he can’t help but breathe in your scent. you only jolt a little, sighing deeply when he places an open-mouthed kiss to your glistening lips, wasting no time and slotting his tongue into your hole. he freezes there, watching to see if you’ll wake up, but you don’t. you only relax into the feeling of him tonguing your walls as deeply as he can, then softly trailing up to your clit. he nearly moans into you, immediately addicted to the way you taste.
he continues wetly kissing the small bud until you whine a little in your sleep, and he takes the opportunity to insert one long digit into your pussy. you squeeze softly around it, but you’re mostly relaxed as he pumps it into you. he knows you’re a deep sleeper, and he’s gotten away with this much, so he’s not too concerned when he adds another. the most you do is bring an arm up by your head and turn your face to the other side, your hair fanning delicately over your eyes in the process.
he wants to make you cum like this. he can almost convince himself to finger-fuck a nice orgasm into you and leave. he’d be satisfied just with the knowledge that you came around his fingers, and he’d be content jerking himself off to that image for the next few months. but he’s already here, and his cock is already throbbing and leaking against the waistband of his pajamas. he came here with a purpose.
he sits up, gently removing his fingers from your heat and licking them clean. he wants to kiss you, stuff his tongue in your mouth and make you taste yourself, but that would surely wake you. he’ll save that for another time, maybe when your parents aren’t home and there’s no one to come running if you scream.
he moves your thighs again, as slowly and gently as he can. you stir a little, but not enough to wake, breathing deeply as you settle into the new position. it’s not until you’re spread open and he lines himself up that you start to get a little fussy, making soft noises of discomfort when he pushes the first few inches in. his thick, mushroom tip leads the way for the rest of his length, and he knows he probably should have prepped you a little more to take his size. you’re getting huffy, whimpering a little as you take him in.
“it’s alright, baby,” he whispers, sinking more of his cock into you. you whine, protesting the intrusion in your sleep, but you still don’t open your eyes. “it’s just a dream.”
he’s not lying, really. it is a dream — one that he’s had for far too long, always waking from it covered in his own cum and desperately bucking his hips into the remnants of you that linger in his mind. it always felt so real, but now that your tight walls are actually suctioning his cockhead and pulling him into you, he knows that no dream will ever compare to this reality.
it must hurt for you, though. he can tell by the way your eyebrows furrow and your breath quickens. he wonders what you’re seeing and feeling. he wonders if your dream is allowing for this scenario to play out, or if your precious mind is protecting itself from what your big brother is doing to you.
“it’s okay.” he coos, running a soothing hand down your face, moving your hair away so he can really see you. but he sort of wants you to know. he doesn’t want you to wake up, but he at least wants to be part of your dream. he wants you to question yourself in the morning, maybe feel a little uneasy around him at breakfast. why not, right? it’s fun to toy with you, and he’d hate if some nameless, faceless phantom that your psyche conjured up to play the man who’s sinking his cock into you got all the credit.
“your big brother’s taking good care of you.”
there. he planted the seed, biting back a groan when he finally bottoms out inside you. you jolt, but he’s pleased to see you’ve relaxed a little at the comforting mention of your big brother. he thinks you’ve even opened your legs a little wider for him, too, but it’s hard to say if it’s because of him or just a product of your restless movements.
“a-armin?” you ask, and he stills. his heart thumps harder in his chest as he stares down at you, but as far as he can tell, your eyes are still closed. you haven’t shoved or screamed or kicked to get him off of you. you’re talking in your sleep.
his cock throbs as he pulls out a little to fuck himself back into your warm, sopping wet hole. you gasp, stretching and arching your back into it. “mmm, armin.” you moan.
he thinks he’s died and gone to heaven. you think you’re having a wet dream about him. he couldn’t have prayed for a better outcome.
“yeah, it’s me, baby. just stay still, i’ll be finished soon.”
you relax into it at his words, and he thinks he sees your eyes crack open for a split second before you resign to accept it as fantasy. you’re too tired to fight it, and it feels blissful enough to be considered a dream when the fat cockhead inside you ruts into the spongey spot that makes your legs shake. you can see him in your mind, your handsome big brother humping into you desperately. he feels so real, it feels so good. in the back of your head you know it’s wrong, but you can’t control it.
“armin,” you whine, sighing as lips trace down your neck softly. it’s so vivid you can feel the grazing of his teeth against your skin. you’re a little less than half-conscious now, because the jostling of your body gets harder the more your big brother pounds into you. but the pleasure increases, too. you’re close to cumming, but you’re so afraid of losing the dream just before you get to release that you don’t fight it.
“my big, big brother.” you say in sort of a rushed sigh that turns into a high-pitched gasp. your body gives way to tremors as you cum around his cock, and behind closed eyes you see your big brother panting along with you, abs tightening and his bottom lip caught between his teeth. you breathe out another dreamy sigh when a warm feeling fills you up.
armin can’t believe you didn’t wake up when he came inside you, but you rather opted to snuggle deeper into your pillow with a peaceful smile on your face. you think you dreamt of your brother rutting into you and filling you up with hot ropes of cum, and it made you fucking smile. you might just be sicker than he is.
he removed himself carefully, fighting against the death grip your walls had on him as he pulled out. he almost pulls your panties back up to cover your leaking pussy, but decides against it. he still wants you to be a little confused in the morning.
and you are. waking up with a dull throbbing sensation in your pussy is one thing, but leaking cream out of your hole and onto your sheets is another. and where the hell are your panties? you could have sworn you went to bed with them on, but they’re nowhere to be found. it’s bizarre, but you chalk it up to the weird dream you had that left you feeling equally as strange. you probably took them off in your sleep and tossed them aside somewhere, however unlikely it seemed.
it wasn’t until you saw armin in the kitchen after quickly throwing on sweatpants that an odd feeling settled in the pit of your stomach. he was shirtless, plaid pajama pants hanging low on his hips and his hair tussled. a hot flush rose to your cheeks as he greeted you in a raspy morning voice, vivid memories of your dream taking over your mind. armin, you remembered. you had a wet dream about your brother — easily the most intense dream you’ve ever had. you remembered how desperately you wanted it, how good it felt, and cumming so hard in your sleep it practically knocked you out.
“something wrong?” he asked, but you couldn’t find the words to respond. it was humiliating. how could you ever look him in the eye again?
“no. nothing.” you choked out after he raised an eyebrow at you. he fought the urge to smirk. he had you just where he wanted you. he could see you questioning reality, going over your memories of last night in your head as you avoided his gaze.
it really did feel so real. sounded real, too. and the throbbing in your pussy this morning was real. so was the cum, and your missing panties. was it real?
you dared to glance at him while his back was turned, thinking it over. no. no. there was no way. big brothers don’t fuck their little sisters in their sleep— do they? your abused hole clenches around nothing at the thought. you still feel full, with remnants of the mysterious liquid still leaking out of you and making you feel needy all over again. what if it’s armin’s—
you almost drop to your knees as he stands behind you to grab something from the cabinet above you, an unmistakable bulge pressed against your ass. you gasp, but he’s gone before you turn, now walking towards the fridge. you catch sight of him toying with a small piece of fabric sticking out of his pocket — white lace. you feel dizzy. you’re still throbbing, you can still feel the phantom — no, your brother — pounding into your pussy almost as vividly as it felt in your dream. you feel the warm, sticky pool of cum inside you, and you think you’re going to pass out.
“so,” he starts, opening the fridge nonchalantly. “how did you sleep?”