Alpha!Kuroo is encouraged to breed his omegas as being the alpha male of the pack. The omega's heats are synched up so when Kuroo goes into a rut to satisfy one, the other is set off as well.
A focus on them being bred, and the omegas getting along and trying to comfort one another while Kuroo tries his best to appease them.
Everything must be consensual.

(if you want to add omega!Yaku to the mix be my guest, you are more than welcome)

Bonus if it's cat Au because apparently I haven't sinned enough.