content warnings: this story contains incest. the characters are also written with middle and high school ages in mind, though their ages are undefined. if this bothers you, then remember, this is fiction. if it makes you feel more comfortable you can read this as a roleplay scenario between two consenting adults.
the look in your eyes would be priceless if you happened to be near a mirror. youre doing an awful job hiding the hunger and anyone who spent even a second making eye contact could tell how needy you feel staring at the bulge in your big sisters shorts. and what a bulge it is. you dont even think shes hard, shes just sitting there on her bed playing her game, yet still it taunts you with its fat shape barely held in place by the fabric.
somehow, despite this, she doesnt seem to notice you staring so luridly at her. she must really be wrapped up in that game of hers. you almost wonder if she even remembers youre in the room with her. she *does* have a habit of getting so sucked into what shes doing that the world around her might as well not even exist.
suddenly, you get an idea. maybe you can use that to your advantage.
you carefully crawl across the floor to her side of the room and slink onto the bed. so far, so good. the closer you get the more your nose picks up the smell radiating from her shorts, that oh so delectable scent of her balls. it drives you wild with need, only barely able to constrain yourself. dont forget, youre trying to be sneaky.
“what are you doing, and why do you look so pathetic doing it?”
damn. how did she notice you?
“ummm, i uhhh, wanted to, umm…”
“well? spit it out, come on, i dont have all night.” god the way she talks down to you sends shivers down your spine.
“i just wanted to, ummm, g-get close to my big sis.”
she scoffs and glances at the look on your face. “yeah? that why youre at the foot of the bed looking like a starving animal?” she utters with more disdain than you think you can handle. “or is there maybe something else you were doing? yknow, aside from being a lying little shit?”
“huh? wh-what? i-i dont know what youre t-talking about! what do you mean l-lying?”
“oh please, you think i didnt notice you staring at my dick this whole time? you have pathetic and horny written all over your stupid face too, look at you. youre blushing like a little freak, youre hunched over, youre DROOLING even, and that tiny little cock of yours is practically begging to escape.”
she, she noticed? then, why did she just let you stare? why wouldnt she call you a creep and kick you out of her room? you look down at the bed, dejected, feeling tears start to well in your eyes.
“hey, wait, sis, dont cry, please dont cry. im sorry, i didnt mean to hurt your feelings.” her tone is lower now, softer. it calms you down ever so slightly. “i was just teasing was all. its ok.”
she reaches for your head and runs her fingers thru your hair. her hands feel nice. you can feel yourself relaxing, your sisters love bringing you warmth.
maybe a little too much warmth, as you feel your cheeks start to blush and your cock start to stir again.
“i, ummmm, i kinda, i uhhhh-“
“shhhhhhh, no words, little sis. theres something else your mouth should be doing, isnt there?”
your brain shuts off for a second. is, is she insinuating what you think shes insinuating?
“wh-wha?”
she gently pulls you by the hair towards her crotch, the scent emanating from her shorts dulling your mind and reminding you of the hunger you had felt before.
“isnt this what you wanted, little sis? you sure spent an awful long time staring at it. dont you want to breathe it in?” she shoves your face right up against her fat cock, only kept away from you by what can barely be described as shorts. you let out a moan and shudder, feeling drugged by her musk.
“thats right, breathe deep, good girl.”
you start to lose control and nuzzle her cock, rubbing your face all along the bulge in front of you. youve never wanted anything more in the world than to be right where you are at this very moment.
suddenly, she pulls your head back. you stammer, confused, like a baby whose bottle had just been taken.
“help me take these shorts off, sis.”
the words take a moment for your mind to register, but when they finally click in your head you enthusiastically reach to remove the horrid fabric keeping you from your-
“excuse me, what do you think youre doing?”
huh?
you gaze in her eyes with a questioning look, only for her to pin your arms to the bed.
“good girls dont need hands, do they? good little pets use their mouth.”
she chuckles a bit upon seeing the gears turn in your head, as you slowly realize what she wants you to do. your look turns from questioning to blissful excitement as you reach your head to her crotch and desperately grab at the waistband of her shorts with your teeth like a starved, needy animal.
her beautiful cock escapes the fabric, resting on your head as you free her from confinement. the scent hits your nose even stronger, as grand and intoxicating as you dreamed it would be. you struggle to remain coherent, something your sister finds amusing. she pets your head as you rub your face all over it, savoring every inch of it.
“alright sis, open those pretty little lips of yours. big sis needs that cute little mouth and she needs it now.”
the words are like music to your ears. the butterflies in your chest swell as you open wide, anxious yet excited to finally taste your sister. barely a second passes before she impatiently grabs your head and shoves your open mouth down on her cock.
“cant let you - mmmf, fuck - chicken out before the good part, can i? fuck your mouth feels so good, sis,” her grunts and moans in your ears turning to noise as your head empties, your only thoughts being the fat cock thrusting past your lips. you never realized your sister tasted so good, youve dreamed for so long of finally being allowed to savor it but you never could have expected it to taste like this. you start to moan involuntarily, but she doesnt seem to mind.
“hah, fuck, listen to you, you must really love this - fuck, just like that, oh my god sis youre a natural.”
you bob your head along with her thrusts, keeping your lips closed tight as your tongue dances all along the shaft, doing your best to commit her taste to memory. you feel her hands tense up and restrain your head even further, forcing as much of her fat cock down your throat as she can.
“f-fuck, get ready sis, here it comes.”
her thrusting stops as her dick starts to throb, before she unleashes wave after wave of cum. it tastes sweeter than you ever thought it could, every spurt like a gift from god. you feel so much bliss. this feels right. your head between sisters legs as she cums in your mouth. it feels like where you belong. where youve always belonged.
the cum starts to die down, your sisters panting calming and settling into a rhythm as her orgasm subsides. you look up at her, cock still in your mouth, and when her eyes meet yours she gives you the sweetest smile youve ever seen from her.
“youre such a good girl, sis.”
you smile around her shaft, blushing and cooing.
“god i just fucked my sisters face, oh my god its just now hitting me, hahaha.”
you pull off her spent organ with a final slurp, the cumdrunk haze still clouding your mind, and tilt your head inquisitively.
“hey, dont tell mom and dad what just happened and ill let you do that again, ok?”
you nod your head vigorously. “mommy and daddy wont hear a word from me!”
“thats my good lil sis, now get up here so i can hold you.”
you grin and sidle up next to your sister and sink into her embrace. a yawn finds its way past your lips as you drift off in her arms, blissfully content with a belly full of cum.