OP here. I thought about with my current game since the boy is adopted (his adopted mom has a boyfriend with whom she had a daughter) that when he grows up he falls in love with the boyfriend who he isn't affiliated with in any way because he is adopted and they aren't married. So... I thought about having them being together and have her be the money maker of the household being she's a level 10 writer.
I do little stuff like that but I get attached to my sims so I don't like to kill them off.