There's a rule in your family: If you want to move out, then you must provide a replacement for yourself.
Your parents never wanted to be empty nesters, loved being parents too much to ever stop. Summer camps, after school activities, family dinners - your folks adored it, became parents young just to get as much of it as they could.
So when your older brother went to move out during college your parents sat him down and explained that either he provides a replacement or does school online and stays - four kids must be under their roof at all times, no more and no less.
You all thought they were joking, but then his lease fell through and his scholarships were suddenly being revoked and oh, this wasn't a joke.
A month later your mother was expecting and your brother fled, only to show up for holidays and summer break.
Your older sister planned ahead and asked your parents specifics. When did the replacement need to be there? Was there any wiggle room? What counted as leaving - would weekend commuting back count?
Your older sister was smart, smart enough to get pregnant just after winter break her senior year and give birth in the midst of summer before school started up again. Smart enough to be a waddling valedictorian desperately trying to hide a bump her own father gave her.
It should have been your turn next but, well, you didn't want to go through it. Tuition was expensive, rent on top of that sounded like just a headache. Staying at home and going to your local community college was better.
So you watched your younger brother pack his bags as you rubbed your mothers back while she vomited into the toilet, went with her to her doctors appointments as she checked on your new sibling-niece. This was better. This was safer.
Then you completed your degree, and realized that if you wanted to actually live a life of your own you'd have to leave.
You sat your folks down after your youngest siblings were put to bed, hands folded in front of you on the kitchen table. Explained that you needed to leave because there were no jobs in your field here - a lie, but one you hoped would sell an exception - and honestly; three kids under five is already a headache, do they truly want another one?
"Aw baby," your mother cooed, "you know the rules here."
"I haven't had a period in years mom," and you hoped that would be enough, a reminder that your anatomy and your siblings was different, make you special somehow, "I am willing to draft up an agreement that I could pay for a surrogate or any adoption fees, I'll cover any costs."
But your mother was already shaking her head and your dad was laughing lightly as if the idea was ridiculous. "You know," your dad said, "your sister offered the same thing."
There was no getting out of it.
You jotted out a timeline and made a plan with your folks. Quietly despaired at the prenatals and fertility drugs that would be added to your meals. Forced yourself to get comfortable with the idea of sleeping with your father, of growing round and fat with his child. Your child, your mind whispered.
A month later Mom left for the next week, dragging the young ones out with her so there wouldn't be any interruptions.
You showered, put out a towel on your comforter, forced your hands to still and laid spread out on your bed unsure of what the hell to even do. Naked as the day you were born, looking up at your father and feeling your mouth water in what you hoped was disgust but felt all too warm.
He was nude, kneeling tall over you as he ran his hands down your chest. Firm grip sending goosebumps over your skin and a hitch of your breath as his fingers moved to your thighs. Forcing your legs apart with his elbows, splaying open your lower body as he kneeled down.
"Don't worry buddy," your dad said, looking up at you inbetween your legs, "just lay back and relax."
His mouth was hot on your privates, and the wet feeling of his tongue on your dick was unexpected. Jerking back, you moved a hand to push his head away and quickly shot it up to muffle your mouth as his mouth enveloped your member whole.
Fuck, he knew how to suck.
His hands ran up and down your inner thighs, tongue lapping at your dick and folds as he sucked your cock. Swirling his tongue around the head of your member, teeth barely grazing the shaft as you shuddered. Ate you out like a man on a mission, gripping your thighs and forcing them down as you tried to curl up. Forcing out of you whimpers and moans as your pleasure built and built until your pussy was howling - trying your damnedest not to scream as you came.
Your father didn't stop until you were gasping for breath, nerves on fire and body shaking in a way that had nothing to do with anxiety. The sheets felt soiled, and all you could do was bite your lip and try to wipe off the drool running down the corner of your mouth with unsteady hands.
Your father sat up and stretched, grinning as he patted your left leg. "Wasn't too bad now, was it? Fun parts coming up now, keep doing exactly what you're doing."
You forced your gaze to drift lower, watching as your father lined his cock up against your entrance, hushing you gently as you squirmed. He was big. Girthy enough to surpass your wrist and easily eight inches long. There was a horrifying moment where you thought he wouldn't fit, got ready to call this off and just tough it out at home, living here isn't really all that bad -
and then he rocked forward and entered you in a solid thrust.
You think you blacked out, for a moment. It fucking hurt, and tears were starting to gather at the corner of your eyes. His hands were back at your hips, forcing your body upwards as your legs hung uselessly up in the air, same bruising grip from earlier that prevented you from moving securing you the same way now.
"God, you're such a fucking good son," he panted above you, voice husky and thick, "you know that? Shouldn't have favourites but - fuck - you're mine. My good boy. My sweet son."
"Mgfh," it was tough to speak, difficult as you sobbed. The pain was lessening and instead it was shame building because it felt really, really good. You felt full, felt like your brain was melting and your body alight. Felt as his cock hit that sweet spot in your body and your walls enveloped him, the stretch forcing you to take in everything and feel it.
"Gonna give me a new kid, hm? Maybe another son like you, another one with a pussy I can fuck and a dick i can suck. Or maybe you'll give me twins, make your stomach stretch far out. Wouldn't that be nice?"
Goddammit it wasn't fair. His pace was brutal, relentless. He treated you less like a partner and more like a fleshlight, and each thrust had you gasping for air like a man deprived.
You weren't surprised when you came, black dots littering your vision like stars in the sky, body clamping down on the cock inside you as you spasmed, legs twitching and mouth opening for a breathless scream.
You were surprised when you felt your dad still on top of you, a hand leaving your waist to grab a pillow and shove it under your lower back before your dads seed started spilling into you. He curled into you, dick pulsating as he took deep breaths in, slowly pulling out of you a few moments after ensuring the pillow kept your pelvis elevated.
"Fuck that was nice," he said, "give me about ten minutes to grab a glass of water and we'll go again."
