My child sim got a notification from his dad asking if he should get engaged to the child's mother. For context: the mother is already married to another man. And I don't know if this is important, but the mother is in the same household as the child (though the father isn't).
I said yes to see what would happen and it happened. She was now married to one man and engaged to another. I wanted to see what would happen if I tried to make them married as well and that worked too. My sim is now married to two men.
Edit By Crinrict: Adjusted Title
