Am I Able to Change Relationship Status After I Create Sims in CAS?

"Blackkatness;d-994221" wrote:
I have two Sims I want to make Father and Son. I just could not find that option. Is there a cheat for this?

You can always temporarily move them into the same household, change the relationship in CAS, and then move one of them back out. I do this to create family relationships all the time. No mods required.