i have more ideas on older omega reader and alpha Kali
well more like readers kids interracting with their new (potential) step Kali.
Kali is in readers house for whatever reason chilling on the couch while reader is in another room. readers oldest son is visiting and just walks up to Kali ans throws and unmarked binder at him before leaving. Kali opens the binder and it's just wedding stuff. venues, colours, flowers stuff like that. on the front page in childish writing is written "moms dream wedding".
turns out after readers past alpha left him his kids who were young at the time got together and made the binder for if reader ever remarried (they've gotten a lot more bitter since then so the binder kind of sat around collecting dust). readers first wedding was not at all what he wanted as it was catered to his alphas and their familys taste and readers kids knew what their "mom" liked so they made the binder and now that Kali is around he could probably find some use for it
(he will find use for it. he doesn't have another choise. he showed up and wormed his way into readers heart and now he has to marry him or else)
Kali gently gently taking the binder and keeping it. Yes, he will use it to make the best wedding ever for you. Does it also have engagement ring designs in it?? Wedding ring designs??
If it doesn't, that's okay. He'll just use the information he knows about you to buy you the perfect ring.
He'll be making you his mate, mhm. You're his omega and your sons are his sons now too.