cw incest, dad/son, parent death mention, omegaverse
alpha dad Robby and his alpha son Frank have been rut partners ever since Frank's omega dad Jack passed. Frank loves spending every rut with his dad and by this point he doesn't even want to get an omega. Everything is perfect.
Well, almost. The only thing Frank wishes was different is that his dad would let him kiss him. Or even scent him.
So when Frank's younger omega half brother, Dennis, comes to stay with them and ride out his first heat with his alpha parent (as is customary, of course), Frank is livid. He hatesss the idea of sharing his dad with someone else and especially a young fertile omega who can make his dad's knot pop harder than his alpha hole ever could.
Frank tries to ignore the kid, knowing he'll be gone as soon as his heat is up and hopefully he'll never come back again.
But then, Frank gets curious. And the heavy scent of a newly fertile omega from the guest room is too much for his own impending rut to ensure. So, against every voice in his head screaming at him, Frank peeks into the guestroom and sees... his dad and little brother's mouths locked together, just as tightly as their knot and hole.
Frank runs out of the house, needing air. He stays out all night and only comes home when he knows his dad will be asleep. He collapses into his bed, covered with his dad's scent from their last rut, and sobs.
When Frank goes to the guestroom to beat the shit out of confront Dennis the next morning, he can smell his dad's scent wafting from the room. And when Dennis answers the door, Frank scents him and the kid smells just like Robby too.
But... it's not just because they mated recently, Frank realizes.
It's just... Dennis's scent.
Frank can smell his dad's scent on every inch of him, layered with another unfamiliar scent (probably his mother?).
Which means... to his dad... Frank probably smells like...
Cue Frank marching off to his dad's bedroom and forcing his dad to scent him while telling him everything he now knows. He knows why he never scents him, he knows why he never kisses him. And all the while he's carefully angling their mouths towards each other, urging his words into his father's mouth, until the older alpha's resolve finally crumbles and he slams Frank back against the wall, tongue and teeth invading his son's mouth between half-sobbing whispers of
"Jack... Jack... Jack..."
