TS4 Royalty & Legacy Expansion Pack

I believe you can simply make whoever you want to dance. At least your actively sim should be able to choose partner, whether that partner appreciate the invite is a different question 😆

Edit: Hm, in a very strict community it ought to cause a scandal, depending on the rank of those involved. Would be cool if the monarchs can state how old fashioned/openminded they want to rule. I mean a medieval kingdom might handle this differently than a modern kingdom.