NUOK's Things

I've been trying to search for this specific bl manga?? Atleast I think it is right. Im pretty sure the ones I'm thinking about are side characters

So there's this black haired dude right, he goes to work and he has a husband thats like blond and stays at home

(They both had one kid before marrying)

And then the kids of those two are like fighting over which ones the top in their relationship(??) Like the kid of the black haired dude is like "oh the top is totally my dad cause he's the ceo!" And the other girl (kid of blonde dude) viceversa

And I REALLY remember this one scene where the blonde dude is like "your dad is a bottom cause its tots adorbs!"

PLEASE HELP ME FIND IT WAAA IM PRETTY SURE ITS A SIDE STORY WAUGH