In CAS give your Sim the Kept Mistress Aspiration. Then give her the Kept Mistress personality trait located in the lifestyle category. You’ll need both.
The aspiration is behind the Pampered Aspiration category.
The bonus trait is titled: Charming Boost. It’ll help you gain Charisma skill faster.
Kept Mistress social menu will appear on any Sim you have a romantic relationship with and some friendships.
These interactions will appear for married Sims as well.
The interaction: I need to be spoiled more, has the chance to loot $200 from your love interest.
