, this mod allows you to manually define relationships like step-parents, aunts, and cousins that the base game might miss. Lumpinou’s Relationship & Pregnancy Overhaul (RPO):
This is the nuclear reactor of sibling rivalry. The Sims 4 Incest Mod
, which includes an "Amnesty" or "Woohoo" module that allows players to toggle specific relationship restrictions on or off. Other more explicit mods, like WickedWhims , this mod allows you to manually define