Chapter Text
Hanzo hides a breeding kink a mile wide, and it only gets worse when he and Genji start fucking their father. When he slides into the man who sired them, it puts the Shimada ouroboros in his head, the idea of continuing the endless cycle.
He keeps it a secret for the longest time, but one night as Genji holds Sojiro up and Hanzo gets close to spilling inside him, he mutters, "I'm gonna knock you up."
Red-faced, he looks up, hoping they didn't hear, but they're both staring at him, just as red-faced.
Then Sojiro clears his throat. "You're going to make your father a father?"
Soon it's a regular part of their lovemaking, with Genji and Hanzo fondling and latching onto Sojiro's tits to "drink" and palming his stomach as they fuck into him, wondering aloud how long it'll be before he's showing.
~
Sojiro was surprised by Hanzo's breeding kink, he'll admit, but he can't deny that it's appealing.
What's more surprising is that Hanzo wants to breed him...and how appealing that is.
It's hot and erotic, and Sojiro enjoys the attention and the low, growling words of his sons as they "knock him up", "breed" him, etc, but there's a part of Sojiro that likes to think about the...aftermath, he supposes.
Sojiro even finds himself daydreaming about it on occasion.
A day or two after a love-making session with his sons, he would feel...different, somehow, but he would brush it off.
Then, a few weeks later, he'd feel a little tender and a little fatigued, but wouldn't think anything of it until he's forced to run to the bathroom, hand over his mouth, trying to hold his breakfast down.
Then he'd go to the doctor, and...
Depending on how practical his fantasies are on that particular day, he either immediately finds out or it takes a few weeks to figure out the miracle that's occurred, but either way, he ends up sitting in shock, his hands over his belly, flabbergasted and terrified...
...yet so, so happy.
Then it's only a matter of breaking the news to his sons, sitting them down, preparing them for a shock, then revealing that, somehow (he usually blames the dragons in these fantasies of his), he's carrying their child, his grandchild.
Sometimes, bizarre as it is, he wants to make it "fair", so he's carrying twins, fraternal twins, and there's no need for Hanzo nor Genji to feel left out or wondering over the paternity, even if such a thing mattered. Somehow they just know that each of them managed to sire one of the twins, then it's another round of complete astonishment as his sons grapple with their father's pregnancy and their own impending fatherhood.
But soon enough they're both around him, hugging him, bewildered...
...yet so, so happy.
Then come the months of preparation, and as his belly grows bigger and rounder, Sojiro is happily anticipating reliving the joy of young children scampering around the castle once more while his sons nervously ask both him and themselves what to expect, what they should do, and, more than once, if they're really, truly ready for this.
They are, Sojiro assures them. They are. There will be times when it's hard and frustrating and tiring, but Hanzo and Genji are strong, capable, protective, smart, affectionate, and, most of all, goodhearted, and they'll combine all these qualities and more into being excellent fathers.
Sojiro, on the other hand, feels like he's almost overly confident, but who can blame him? He's already raised two fine sons. With their help, he can do it again.
Sojiro knows it's silly to indulge in these fantasies, but...still...he'd be a fool to deny how much they appeal to him.
~
Hanzo gently fucks into his father, watching how each thrust reverberates up and down his body, and especially how the peak of his swollen belly shakes.
He doesn't know what it is about seeing his father with child, what biological urge it sets off in his brain, but whatever it is, it only strengthens the need to breed him, to fill him up, as though he could somehow conceive yet another child to add to their happiness as a family.
It might actually be possible. Sojiro became pregnant again only eighteen months after the first pair of twins were born, and now he's carrying twins again. Fraternal, of course…it seems that the miracle of their growing family requires both Hanzo and Genji to make love to their father in the same night; nothing else seems to coax his body into seeking out and uniting with their seed to create new life, the brothers siring a child each before they nestle together, side-by-side, in their grandfather's body as they grew bigger and stronger.
It's a nice coincidence that Sojiro doesn't need to compete for the title of "father". He's simply "Grandpa", and Hanzo is content with "Dad", and Genji is "Papa".
Everything works out perfectly.
Especially tonight. Hanzo and Genji are taking turns caring for their father and their children in turn, one watching hawklike over their father while the other takes care of the first pair of twins, though one role was unquestionably easier than the other. Sojiro isn't old and decrepit by a long shot; he's perfectly capable of walking…waddling… from place to place, his balance altered by the weight of the two lives he carries within him, but otherwise caring little for any so-called disadvantages of the pregnancy. He is far too busy looking forward to still more children rollicking and scampering around the castle.
The only trial for him is bedtime. Getting in and out of bed when he's close to term is…challenging.
And the constant pressure on his bladder is annoying.
But more than anything, it's the anticipation, the fact that soon, soon, he will welcome two more children, two more grandchildren into the world, and he simply can't wait. He wants them so much it literally keeps him up at night.
So he needs a distraction.
Hanzo and Genji are only too happy to oblige, and a huge advantage of their threesome is that one is always on hand to feed and bathe and clothe the twins before gently tucking them into bed and singing them to sleep, and the other can attend to Sojiro.
It's perfect. It's wonderful.
And as Sojiro cries out and Hanzo feels his cum splattering across his belly, Hanzo smiles as he speeds up his thrusts, both to intensify his father’s pleasure and to chase his own.
He can't believe how lucky they all are to share this with each other.